diff options
| author | Tom Rondeau | 2012-04-19 16:29:39 -0400 |
|---|---|---|
| committer | Tom Rondeau | 2012-04-23 19:56:14 -0400 |
| commit | 362d45bb829a9b190586cca79717cc175f4d06d2 (patch) | |
| tree | 15001c96271defad12908e24958aabd158d5159a /gr-digital | |
| parent | 6d1419febab128d82bad00abaf0935624f8aa6cb (diff) | |
| download | gnuradio-362d45bb829a9b190586cca79717cc175f4d06d2.tar.gz gnuradio-362d45bb829a9b190586cca79717cc175f4d06d2.tar.bz2 gnuradio-362d45bb829a9b190586cca79717cc175f4d06d2.zip | |
digital: copying over rest of blocks from gnuradio-core to gr-digital.
Includes moving GRC and QA code; new ones where missing.
Have not removed blocks from gnuradio-core for compatibility.
Diffstat (limited to 'gr-digital')
92 files changed, 6528 insertions, 33 deletions
diff --git a/gr-digital/grc/digital_additive_scrambler_bb.xml b/gr-digital/grc/digital_additive_scrambler_bb.xml new file mode 100644 index 000000000..5ae5ba06f --- /dev/null +++ b/gr-digital/grc/digital_additive_scrambler_bb.xml @@ -0,0 +1,44 @@ +<?xml version="1.0"?> +<!-- +################################################### +## Additive Scrambler +################################################### + --> +<block> + <name>Additive Scrambler</name> + <key>digital_additive_scrambler_bb</key> + <import>from gnuradio import digital</import> + <make>digital.additive_scrambler_bb($mask, $seed, $len, $count)</make> + <param> + <name>Mask</name> + <key>mask</key> + <value>0x8A</value> + <type>hex</type> + </param> + <param> + <name>Seed</name> + <key>seed</key> + <value>0x7F</value> + <type>hex</type> + </param> + <param> + <name>Length</name> + <key>len</key> + <value>7</value> + <type>int</type> + </param> + <param> + <name>Count</name> + <key>count</key> + <value>0</value> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>byte</type> + </source> +</block> diff --git a/gr-digital/grc/digital_block_tree.xml b/gr-digital/grc/digital_block_tree.xml index 3ef4d0b1d..d12ee9f94 100644 --- a/gr-digital/grc/digital_block_tree.xml +++ b/gr-digital/grc/digital_block_tree.xml @@ -30,19 +30,34 @@ <name></name> <!-- Blank for Root Name --> <cat> <name>Digital</name> + <block>digital_additive_scrambler_bb</block> <block>digital_binary_slicer_fb</block> + <block>digital_bytes_to_syms</block> <block>digital_clock_recovery_mm_xx</block> <block>digital_cma_equalizer_cc</block> <block>digital_constellation_decoder_cb</block> <block>digital_constellation_receiver_cb</block> <block>digital_correlate_access_code_bb</block> <block>digital_costas_loop_cc</block> + <block>digital_descrambler_bb</block> <block>digital_fll_band_edge_cc</block> + <block>digital_glfsr_source_x</block> <block>digital_kurtotic_equalizer_cc</block> <block>digital_lms_dd_equalizer_cc</block> + <block>digital_map_bb</block> <block>digital_mpsk_receiver_cc</block> <block>digital_mpsk_snr_est_cc</block> + <block>digital_pfb_clock_sync_xxx</block> + <block>digital_pn_correlator_cc</block> + <block>digital_probe_density_b</block> <block>digital_probe_mpsk_snr_est_c</block> + <block>digital_scrambler_bb</block> + <block>digital_diff_decoder_bb</block> + <block>digital_diff_encoder_bb</block> + <block>digital_diff_phasor_cc</block> + <block>digital_framer_sink_1</block> + <block>digital_packet_sink</block> + <block>digital_simple_framer</block> </cat> <cat> <name>Digital Modulators</name> diff --git a/gr-digital/grc/digital_bytes_to_syms.xml b/gr-digital/grc/digital_bytes_to_syms.xml new file mode 100644 index 000000000..fb17bb6de --- /dev/null +++ b/gr-digital/grc/digital_bytes_to_syms.xml @@ -0,0 +1,20 @@ +<?xml version="1.0"?> +<!-- +################################################### +## Bytes to Syms +################################################### + --> +<block> + <name>Bytes to Symbols</name> + <key>digital_bytes_to_syms</key> + <import>from gnuradio import digital</import> + <make>digital.bytes_to_syms()</make> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>float</type> + </source> +</block> diff --git a/gr-digital/grc/digital_descrambler_bb.xml b/gr-digital/grc/digital_descrambler_bb.xml new file mode 100644 index 000000000..4f52c7964 --- /dev/null +++ b/gr-digital/grc/digital_descrambler_bb.xml @@ -0,0 +1,38 @@ +<?xml version="1.0"?> +<!-- +################################################### +## Descrambler +################################################### + --> +<block> + <name>Descrambler</name> + <key>digital_descrambler_bb</key> + <import>from gnuradio import digital</import> + <make>digital.descrambler_bb($mask, $seed, $len)</make> + <param> + <name>Mask</name> + <key>mask</key> + <value>0x8A</value> + <type>hex</type> + </param> + <param> + <name>Seed</name> + <key>seed</key> + <value>0x7F</value> + <type>hex</type> + </param> + <param> + <name>Length</name> + <key>len</key> + <value>7</value> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>byte</type> + </source> +</block> diff --git a/gr-digital/grc/digital_diff_decoder_bb.xml b/gr-digital/grc/digital_diff_decoder_bb.xml new file mode 100644 index 000000000..a7c94b834 --- /dev/null +++ b/gr-digital/grc/digital_diff_decoder_bb.xml @@ -0,0 +1,25 @@ +<?xml version="1.0"?> +<!-- +################################################### +##Differential Decoder +################################################### + --> +<block> + <name>Differential Decoder</name> + <key>digital_diff_decoder_bb</key> + <import>from gnuradio import digital</import> + <make>digital.diff_decoder_bb($modulus)</make> + <param> + <name>Modulus</name> + <key>modulus</key> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>byte</type> + </source> +</block> diff --git a/gr-digital/grc/digital_diff_encoder_bb.xml b/gr-digital/grc/digital_diff_encoder_bb.xml new file mode 100644 index 000000000..3885bed9a --- /dev/null +++ b/gr-digital/grc/digital_diff_encoder_bb.xml @@ -0,0 +1,25 @@ +<?xml version="1.0"?> +<!-- +################################################### +##Differential Encoder +################################################### + --> +<block> + <name>Differential Encoder</name> + <key>digital_diff_encoder_bb</key> + <import>from gnuradio import digital</import> + <make>digital.diff_encoder_bb($modulus)</make> + <param> + <name>Modulus</name> + <key>modulus</key> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>byte</type> + </source> +</block> diff --git a/gr-digital/grc/digital_diff_phasor_cc.xml b/gr-digital/grc/digital_diff_phasor_cc.xml new file mode 100644 index 000000000..506bf400b --- /dev/null +++ b/gr-digital/grc/digital_diff_phasor_cc.xml @@ -0,0 +1,20 @@ +<?xml version="1.0"?> +<!-- +################################################### +##Differential Phasor +################################################### + --> +<block> + <name>Differential Phasor</name> + <key>digital_diff_phasor_cc</key> + <import>from gnuradio import digital</import> + <make>digital.diff_phasor_cc()</make> + <sink> + <name>in</name> + <type>complex</type> + </sink> + <source> + <name>out</name> + <type>complex</type> + </source> +</block> diff --git a/gr-digital/grc/digital_framer_sink_1.xml b/gr-digital/grc/digital_framer_sink_1.xml new file mode 100644 index 000000000..9124e6d0d --- /dev/null +++ b/gr-digital/grc/digital_framer_sink_1.xml @@ -0,0 +1,21 @@ +<?xml version="1.0"?> +<!-- +################################################### +## Framer Sink 1 +################################################### + --> +<block> + <name>Framer Sink 1</name> + <key>digital_framer_sink_1</key> + <import>from gnuradio import digital</import> + <make>digital.framer_sink_1($target_queue)</make> + <param> + <name>Target Message Queue</name> + <key>target_queue</key> + <type>raw</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> +</block> diff --git a/gr-digital/grc/digital_glfsr_source_x.xml b/gr-digital/grc/digital_glfsr_source_x.xml new file mode 100644 index 000000000..654dfa71c --- /dev/null +++ b/gr-digital/grc/digital_glfsr_source_x.xml @@ -0,0 +1,61 @@ +<?xml version="1.0"?> +<!-- +################################################### +##GLFSR Source +################################################### + --> +<block> + <name>GLFSR Source</name> + <key>digital_glfsr_source_x</key> + <import>from gnuradio import digital</import> + <make>digital.glfsr_source_$(type.fcn)($degree, $repeat, $mask, $seed)</make> + <param> + <name>Type</name> + <key>type</key> + <type>enum</type> + <option> + <name>Float</name> + <key>float</key> + <opt>fcn:f</opt> + </option> + <option> + <name>Byte</name> + <key>byte</key> + <opt>fcn:b</opt> + </option> + </param> + <param> + <name>Degree</name> + <key>degree</key> + <type>int</type> + </param> + <param> + <name>Repeat</name> + <key>repeat</key> + <type>enum</type> + <option> + <name>Yes</name> + <key>True</key> + </option> + <option> + <name>No</name> + <key>False</key> + </option> + </param> + <param> + <name>Mask</name> + <key>mask</key> + <value>0</value> + <type>int</type> + </param> + <param> + <name>Seed</name> + <key>seed</key> + <value>1</value> + <type>int</type> + </param> + <source> + <name>out</name> + <type>$type</type> + </source> +</block> diff --git a/gr-digital/grc/digital_map_bb.xml b/gr-digital/grc/digital_map_bb.xml new file mode 100644 index 000000000..1435c5ac7 --- /dev/null +++ b/gr-digital/grc/digital_map_bb.xml @@ -0,0 +1,25 @@ +<?xml version="1.0"?> +<!-- +################################################### +##Map +################################################### + --> +<block> + <name>Map</name> + <key>digital_map_bb</key> + <import>from gnuradio import digital</import> + <make>digital.map_bb($map)</make> + <param> + <name>Map</name> + <key>map</key> + <type>int_vector</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>byte</type> + </source> +</block> diff --git a/gr-digital/grc/digital_packet_sink.xml b/gr-digital/grc/digital_packet_sink.xml new file mode 100644 index 000000000..e9231bd05 --- /dev/null +++ b/gr-digital/grc/digital_packet_sink.xml @@ -0,0 +1,31 @@ +<?xml version="1.0"?> +<!-- +################################################### +## Packet Sink +################################################### + --> +<block> + <name>Packet Sink</name> + <key>digital_packet_sink</key> + <import>from gnuradio import digital</import> + <make>digital.packet_sink($sync_vector, $target_queue, $threshold)</make> + <param> + <name>Sync Vector</name> + <key>sync_vector</key> + <type>int_vector</type> + </param> + <param> + <name>Target Message Queue</name> + <key>target_queue</key> + <type>raw</type> + </param> + <param> + <name>Threshold</name> + <key>threshold</key> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>float</type> + </sink> +</block> diff --git a/gr-digital/grc/digital_pfb_clock_sync.xml b/gr-digital/grc/digital_pfb_clock_sync.xml new file mode 100644 index 000000000..9e2a4cd5e --- /dev/null +++ b/gr-digital/grc/digital_pfb_clock_sync.xml @@ -0,0 +1,104 @@ +<?xml version="1.0"?> +<!-- +################################################### +## Polyphase Filter based Clock Sync +################################################### + --> +<block> + <name>Polyphase Clock Sync</name> + <key>digital_pfb_clock_sync_xxx</key> + <import>from gnuradio import digital</import> + <make>digital.pfb_clock_sync_$(type)($sps, $alpha, $taps, $filter_size, $init_phase, $max_dev, $osps) +self.$(id).set_beta($beta)</make> + <callback>set_taps($taps)</callback> + <callback>set_alpha($alpha)</callback> + <callback>set_beta($beta)</callback> + + <param> + <name>Type</name> + <key>type</key> + <type>enum</type> + <option> + <name>Complex->Complex (Real Taps)</name> + <key>ccf</key> + <opt>input:complex</opt> + <opt>output:complex</opt> + <opt>taps:real_vector</opt> + </option> + <option> + <name>Float->Float (Real Taps)</name> + <key>fff</key> + <opt>input:float</opt> + <opt>output:float</opt> + <opt>taps:real_vector</opt> + </option> + </param> + + <param> + <name>Samples/Symbol</name> + <key>sps</key> + <type>real</type> + </param> + <param> + <name>Alpha</name> + <key>alpha</key> + <type>real</type> + </param> + <param> + <name>Beta</name> + <key>beta</key> + <type>real</type> + </param> + <param> + <name>Taps</name> + <key>taps</key> + <type>real_vector</type> + </param> + <param> + <name>Filter Size</name> + <key>filter_size</key> + <value>32</value> + <type>int</type> + </param> + <param> + <name>Initial Phase</name> + <key>init_phase</key> + <value>16</value> + <type>real</type> + </param> + <param> + <name>Maximum Rate Deviation</name> + <key>max_dev</key> + <value>1.5</value> + <type>real</type> + </param> + <param> + <name>Output SPS</name> + <key>osps</key> + <value>1</value> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>$type.input</type> + </sink> + <source> + <name>out</name> + <type>$type.output</type> + </source> + <source> + <name>err</name> + <type>float</type> + <optional>1</optional> + </source> + <source> + <name>rate</name> + <type>float</type> + <optional>1</optional> + </source> + <source> + <name>phase</name> + <type>float</type> + <optional>1</optional> + </source> +</block> diff --git a/gr-digital/grc/digital_pn_correlator_cc.xml b/gr-digital/grc/digital_pn_correlator_cc.xml new file mode 100644 index 000000000..999cea15d --- /dev/null +++ b/gr-digital/grc/digital_pn_correlator_cc.xml @@ -0,0 +1,37 @@ +<?xml version="1.0"?> +<!-- +################################################### +##PN Correlator +################################################### + --> +<block> + <name>PN Correlator</name> + <key>digital_pn_correlator_cc</key> + <import>from gnuradio import digital</import> + <make>digital.pn_correlator_cc($degree, $mask, $seed)</make> + <param> + <name>Degree</name> + <key>degree</key> + <type>int</type> + </param> + <param> + <name>Mask</name> + <key>mask</key> + <value>0</value> + <type>int</type> + </param> + <param> + <name>Seed</name> + <key>seed</key> + <value>1</value> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>complex</type> + </sink> + <source> + <name>out</name> + <type>complex</type> + </source> +</block> diff --git a/gr-digital/grc/digital_probe_density_b.xml b/gr-digital/grc/digital_probe_density_b.xml new file mode 100644 index 000000000..8cf5dd894 --- /dev/null +++ b/gr-digital/grc/digital_probe_density_b.xml @@ -0,0 +1,29 @@ +<?xml version="1.0"?> +<!-- +################################################### +##Probe Density +################################################### + --> +<block> + <name>Probe Density</name> + <key>digital_probe_density_b</key> + <import>from gnuradio import digital</import> + <make>digital.probe_density_b($alpha)</make> + <callback>set_alpha($alpha)</callback> + <param> + <name>Alpha</name> + <key>alpha</key> + <value>1</value> + <type>real</type> + </param> + <param> + <name>Probe Rate</name> + <key>probe_rate</key> + <value>10</value> + <type>real</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> +</block> diff --git a/gr-digital/grc/digital_scrambler_bb.xml b/gr-digital/grc/digital_scrambler_bb.xml new file mode 100644 index 000000000..9c40b49f6 --- /dev/null +++ b/gr-digital/grc/digital_scrambler_bb.xml @@ -0,0 +1,38 @@ +<?xml version="1.0"?> +<!-- +################################################### +##Descrambler +################################################### + --> +<block> + <name>Scrambler</name> + <key>digital_scrambler_bb</key> + <import>from gnuradio import digital</import> + <make>digital.scrambler_bb($mask, $seed, $len)</make> + <param> + <name>Mask</name> + <key>mask</key> + <value>0x8A</value> + <type>hex</type> + </param> + <param> + <name>Seed</name> + <key>seed</key> + <value>0x7F</value> + <type>hex</type> + </param> + <param> + <name>Length</name> + <key>len</key> + <value>7</value> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>byte</type> + </source> +</block> diff --git a/gr-digital/grc/digital_simple_framer.xml b/gr-digital/grc/digital_simple_framer.xml new file mode 100644 index 000000000..bbeed32d3 --- /dev/null +++ b/gr-digital/grc/digital_simple_framer.xml @@ -0,0 +1,25 @@ +<?xml version="1.0"?> +<!-- +################################################### +##Simple Framer +################################################### + --> +<block> + <name>Simple Framer</name> + <key>digital_simple_framer</key> + <import>from gnuradio import gr</import> + <make>gr.simple_framer($payload_bytesize)</make> + <param> + <name>Payload Byte Size</name> + <key>payload_bytesize</key> + <type>int</type> + </param> + <sink> + <name>in</name> + <type>byte</type> + </sink> + <source> + <name>out</name> + <type>byte</type> + </source> +</block> diff --git a/gr-digital/include/CMakeLists.txt b/gr-digital/include/CMakeLists.txt index 81ed8d368..9dab2471d 100644 --- a/gr-digital/include/CMakeLists.txt +++ b/gr-digital/include/CMakeLists.txt @@ -1,4 +1,4 @@ -# Copyright 2011 Free Software Foundation, Inc. +# Copyright 2011,2012 Free Software Foundation, Inc. # # This file is part of GNU Radio # @@ -22,20 +22,34 @@ ######################################################################## install(FILES digital_api.h + digital_impl_glfsr.h digital_impl_mpsk_snr_est.h + digital_additive_scrambler_bb.h digital_binary_slicer_fb.h + digital_bytes_to_syms.h digital_clock_recovery_mm_cc.h digital_clock_recovery_mm_ff.h + digital_cma_equalizer_cc.h + digital_cpmmod_bc.h digital_constellation.h digital_constellation_receiver_cb.h digital_constellation_decoder_cb.h digital_correlate_access_code_bb.h + digital_correlate_access_code_tag_bb.h digital_costas_loop_cc.h - digital_cma_equalizer_cc.h digital_crc32.h + digital_descrambler_bb.h + digital_diff_decoder_bb.h + digital_diff_encoder_bb.h + digital_diff_phasor_cc.h + digital_framer_sink_1.h digital_fll_band_edge_cc.h + digital_glfsr_source_b.h + digital_glfsr_source_f.h + digital_gmskmod_bc.h digital_lms_dd_equalizer_cc.h digital_kurtotic_equalizer_cc.h + digital_map_bb.h digital_metric_type.h digital_mpsk_receiver_cc.h digital_mpsk_snr_est_cc.h @@ -45,9 +59,16 @@ install(FILES digital_ofdm_insert_preamble.h digital_ofdm_mapper_bcv.h digital_ofdm_sampler.h + digital_packet_sink.h + digital_pfb_clock_sync_ccf.h + digital_pfb_clock_sync_fff.h + digital_pn_correlator_cc.h + digital_probe_density_b.h digital_probe_mpsk_snr_est_c.h - digital_gmskmod_bc.h - digital_cpmmod_bc.h + digital_scrambler_bb.h + digital_simple_framer.h + digital_simple_framer_sync.h DESTINATION ${GR_INCLUDE_DIR}/gnuradio COMPONENT "digital_devel" ) + diff --git a/gr-digital/include/digital_additive_scrambler_bb.h b/gr-digital/include/digital_additive_scrambler_bb.h new file mode 100644 index 000000000..d4bd7d4ae --- /dev/null +++ b/gr-digital/include/digital_additive_scrambler_bb.h @@ -0,0 +1,73 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_GR_ADDITIVE_SCRAMBLER_BB_H +#define INCLUDED_GR_ADDITIVE_SCRAMBLER_BB_H + +#include <digital_api.h> +#include <gr_sync_block.h> +#include <gri_lfsr.h> + +class digital_additive_scrambler_bb; +typedef boost::shared_ptr<digital_additive_scrambler_bb> digital_additive_scrambler_bb_sptr; + +DIGITAL_API digital_additive_scrambler_bb_sptr +digital_make_additive_scrambler_bb(int mask, int seed, + int len, int count=0); + +/*! + * Scramble an input stream using an LFSR. This block works on the LSB only + * of the input data stream, i.e., on an "unpacked binary" stream, and + * produces the same format on its output. + * + * \param mask Polynomial mask for LFSR + * \param seed Initial shift register contents + * \param len Shift register length + * \param count Number of bits after which shift register is reset, 0=never + * + * The scrambler works by XORing the incoming bit stream by the output of + * the LFSR. Optionally, after 'count' bits have been processed, the shift + * register is reset to the seed value. This allows processing fixed length + * vectors of samples. + * + * \ingroup coding_blk + */ + +class DIGITAL_API digital_additive_scrambler_bb : public gr_sync_block +{ + friend DIGITAL_API digital_additive_scrambler_bb_sptr + digital_make_additive_scrambler_bb(int mask, int seed, + int len, int count); + + gri_lfsr d_lfsr; + int d_count; + int d_bits; + + digital_additive_scrambler_bb(int mask, int seed, + int len, int count); + +public: + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_ADDITIVE_SCRAMBLER_BB_H */ diff --git a/gr-digital/include/digital_bytes_to_syms.h b/gr-digital/include/digital_bytes_to_syms.h new file mode 100644 index 000000000..3062366b9 --- /dev/null +++ b/gr-digital/include/digital_bytes_to_syms.h @@ -0,0 +1,62 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_GR_BYTES_TO_SYMS_H +#define INCLUDED_GR_BYTES_TO_SYMS_H + +#include <digital_api.h> +#include <gr_sync_interpolator.h> + +class digital_bytes_to_syms; +typedef boost::shared_ptr<digital_bytes_to_syms> digital_bytes_to_syms_sptr; + +DIGITAL_API digital_bytes_to_syms_sptr digital_make_bytes_to_syms(); + +/*! + * \brief Convert stream of bytes to stream of +/- 1 symbols + * \ingroup converter_blk + * + * input: stream of bytes; output: stream of float + * + * This block is deprecated. + * + * The combination of gr_packed_to_unpacked_bb followed by + * gr_chunks_to_symbols_bf or gr_chunks_to_symbols_bc handles the + * general case of mapping from a stream of bytes into arbitrary float + * or complex symbols. + * + * \sa gr_packed_to_unpacked_bb, gr_unpacked_to_packed_bb, + * \sa gr_chunks_to_symbols_bf, gr_chunks_to_symbols_bc. + */ +class DIGITAL_API digital_bytes_to_syms : public gr_sync_interpolator +{ + friend DIGITAL_API digital_bytes_to_syms_sptr + digital_make_bytes_to_syms(); + + digital_bytes_to_syms(); + + public: + int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_BYTES_TO_SYMS_H */ diff --git a/gr-digital/include/digital_correlate_access_code_tag_bb.h b/gr-digital/include/digital_correlate_access_code_tag_bb.h new file mode 100644 index 000000000..b4a12108f --- /dev/null +++ b/gr-digital/include/digital_correlate_access_code_tag_bb.h @@ -0,0 +1,89 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005,2006,2011,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_digital_correlate_access_code_tag_bb_H +#define INCLUDED_digital_correlate_access_code_tag_bb_H + +#include <digital_api.h> +#include <gr_sync_block.h> +#include <string> + +class digital_correlate_access_code_tag_bb; +typedef boost::shared_ptr<digital_correlate_access_code_tag_bb> digital_correlate_access_code_tag_bb_sptr; + +/*! + * \param access_code is represented with 1 byte per bit, e.g., "010101010111000100" + * \param threshold maximum number of bits that may be wrong + * \param tag_name key of the tag inserted into the tag stream + */ +DIGITAL_API digital_correlate_access_code_tag_bb_sptr +digital_make_correlate_access_code_tag_bb(const std::string &access_code, + int threshold, + const std::string &tag_name); + +/*! + * \brief Examine input for specified access code, one bit at a time. + * \ingroup sync_blk + * + * input: stream of bits, 1 bit per input byte (data in LSB) + * output: unaltered stream of bits (plus tags) + * + * This block annotates the input stream with tags. The tags have key + * name [tag_name], specified in the constructor. Used for searching + * an input data stream for preambles, etc. + */ +class DIGITAL_API digital_correlate_access_code_tag_bb : public gr_sync_block +{ + friend DIGITAL_API digital_correlate_access_code_tag_bb_sptr + digital_make_correlate_access_code_tag_bb(const std::string &access_code, + int threshold, + const std::string &tag_name); + private: + unsigned long long d_access_code; // access code to locate start of packet + // access code is left justified in the word + unsigned long long d_data_reg; // used to look for access_code + unsigned long long d_mask; // masks access_code bits (top N bits are set where + // N is the number of bits in the access code) + unsigned int d_threshold; // how many bits may be wrong in sync vector + unsigned int d_len; // the length of the access code + + pmt::pmt_t d_key, d_me; //d_key is the tag name, d_me is the block name + unique ID + + protected: + digital_correlate_access_code_tag_bb(const std::string &access_code, + int threshold, + const std::string &tag_name); + + public: + ~digital_correlate_access_code_tag_bb(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + /*! + * \param access_code is represented with 1 byte per bit, e.g., "010101010111000100" + */ + bool set_access_code(const std::string &access_code); +}; + +#endif /* INCLUDED_digital_correlate_access_code_tag_bb_H */ diff --git a/gr-digital/include/digital_cpmmod_bc.h b/gr-digital/include/digital_cpmmod_bc.h index 332856afc..f0f11ee30 100644 --- a/gr-digital/include/digital_cpmmod_bc.h +++ b/gr-digital/include/digital_cpmmod_bc.h @@ -74,9 +74,10 @@ digital_make_cpmmod_bc(int type, float h, */ class DIGITAL_API digital_cpmmod_bc : public gr_hier_block2 { - friend DIGITAL_API digital_cpmmod_bc_sptr digital_make_cpmmod_bc(int type, float h, - unsigned samples_per_sym, - unsigned L, double beta); + friend DIGITAL_API digital_cpmmod_bc_sptr + digital_make_cpmmod_bc(int type, float h, + unsigned samples_per_sym, + unsigned L, double beta); std::vector<float> d_taps; gr_char_to_float_sptr d_char_to_float; diff --git a/gr-digital/include/digital_descrambler_bb.h b/gr-digital/include/digital_descrambler_bb.h new file mode 100644 index 000000000..b719803f3 --- /dev/null +++ b/gr-digital/include/digital_descrambler_bb.h @@ -0,0 +1,62 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_GR_DESCRAMBLER_BB_H +#define INCLUDED_GR_DESCRAMBLER_BB_H + +#include <digital_api.h> +#include <gr_sync_block.h> +#include "gri_lfsr.h" + +class digital_descrambler_bb; +typedef boost::shared_ptr<digital_descrambler_bb> digital_descrambler_bb_sptr; + +DIGITAL_API digital_descrambler_bb_sptr +digital_make_descrambler_bb(int mask, int seed, int len); + +/*! + * Descramble an input stream using an LFSR. This block works on the LSB only + * of the input data stream, i.e., on an "unpacked binary" stream, and + * produces the same format on its output. + * + * \param mask Polynomial mask for LFSR + * \param seed Initial shift register contents + * \param len Shift register length + * + * \ingroup coding_blk + */ + +class DIGITAL_API digital_descrambler_bb : public gr_sync_block +{ + friend DIGITAL_API digital_descrambler_bb_sptr + digital_make_descrambler_bb(int mask, int seed, int len); + + gri_lfsr d_lfsr; + + digital_descrambler_bb(int mask, int seed, int len); + +public: + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_DESCRAMBLER_BB_H */ diff --git a/gr-digital/include/digital_diff_decoder_bb.h b/gr-digital/include/digital_diff_decoder_bb.h new file mode 100644 index 000000000..f1a5e433e --- /dev/null +++ b/gr-digital/include/digital_diff_decoder_bb.h @@ -0,0 +1,55 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_DIFF_DECODER_BB_H +#define INCLUDED_GR_DIFF_DECODER_BB_H + +#include <digital_api.h> +#include <gr_sync_block.h> + +class digital_diff_decoder_bb; +typedef boost::shared_ptr<digital_diff_decoder_bb> digital_diff_decoder_bb_sptr; + +DIGITAL_API digital_diff_decoder_bb_sptr +digital_make_diff_decoder_bb(unsigned int modulus); + +/*! + * \brief y[0] = (x[0] - x[-1]) % M + * \ingroup coding_blk + * + * Differential decoder + */ +class DIGITAL_API digital_diff_decoder_bb : public gr_sync_block +{ + friend DIGITAL_API digital_diff_decoder_bb_sptr + digital_make_diff_decoder_bb(unsigned int modulus); + digital_diff_decoder_bb(unsigned int modulus); + + unsigned int d_modulus; + + public: + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif diff --git a/gr-digital/include/digital_diff_encoder_bb.h b/gr-digital/include/digital_diff_encoder_bb.h new file mode 100644 index 000000000..4d1a2cad4 --- /dev/null +++ b/gr-digital/include/digital_diff_encoder_bb.h @@ -0,0 +1,56 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_DIFF_ENCODER_BB_H +#define INCLUDED_GR_DIFF_ENCODER_BB_H + +#include <digital_api.h> +#include <gr_sync_block.h> + +class digital_diff_encoder_bb; +typedef boost::shared_ptr<digital_diff_encoder_bb> digital_diff_encoder_bb_sptr; + +DIGITAL_API digital_diff_encoder_bb_sptr +digital_make_diff_encoder_bb(unsigned int modulus); + +/*! + * \brief y[0] = (x[0] + y[-1]) % M + * \ingroup coding_blk + * + * Differential encoder + */ +class DIGITAL_API digital_diff_encoder_bb : public gr_sync_block +{ + friend DIGITAL_API digital_diff_encoder_bb_sptr + digital_make_diff_encoder_bb(unsigned int modulus); + digital_diff_encoder_bb(unsigned int modulus); + + unsigned int d_last_out; + unsigned int d_modulus; + + public: + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif diff --git a/gr-digital/include/digital_diff_phasor_cc.h b/gr-digital/include/digital_diff_phasor_cc.h new file mode 100644 index 000000000..b6e1a2afb --- /dev/null +++ b/gr-digital/include/digital_diff_phasor_cc.h @@ -0,0 +1,54 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_DIFF_PHASOR_CC_H +#define INCLUDED_GR_DIFF_PHASOR_CC_H + +#include <digital_api.h> +#include <gr_sync_block.h> + +/*! + * \brief Please fix my documentation! + * \ingroup misc + */ +class digital_diff_phasor_cc; +typedef boost::shared_ptr<digital_diff_phasor_cc> digital_diff_phasor_cc_sptr; + +DIGITAL_API digital_diff_phasor_cc_sptr digital_make_diff_phasor_cc(); + + +class DIGITAL_API digital_diff_phasor_cc : public gr_sync_block +{ + friend DIGITAL_API digital_diff_phasor_cc_sptr + digital_make_diff_phasor_cc(); + + digital_diff_phasor_cc(); //constructor + + public: + ~digital_diff_phasor_cc(); //destructor + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif diff --git a/gr-digital/include/digital_framer_sink_1.h b/gr-digital/include/digital_framer_sink_1.h new file mode 100644 index 000000000..bb82bf5a7 --- /dev/null +++ b/gr-digital/include/digital_framer_sink_1.h @@ -0,0 +1,107 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005,2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_FRAMER_SINK_1_H +#define INCLUDED_GR_FRAMER_SINK_1_H + +#include <digital_api.h> +#include <gr_sync_block.h> +#include <gr_msg_queue.h> + +class digital_framer_sink_1; +typedef boost::shared_ptr<digital_framer_sink_1> digital_framer_sink_1_sptr; + +DIGITAL_API digital_framer_sink_1_sptr +digital_make_framer_sink_1(gr_msg_queue_sptr target_queue); + +/*! + * \brief Given a stream of bits and access_code flags, assemble packets. + * \ingroup sink_blk + * + * input: stream of bytes from gr_correlate_access_code_bb + * output: none. Pushes assembled packet into target queue + * + * The framer expects a fixed length header of 2 16-bit shorts + * containing the payload length, followed by the payload. If the + * 2 16-bit shorts are not identical, this packet is ignored. Better + * algs are welcome. + * + * The input data consists of bytes that have two bits used. + * Bit 0, the LSB, contains the data bit. + * Bit 1 if set, indicates that the corresponding bit is the + * the first bit of the packet. That is, this bit is the first + * one after the access code. + */ +class DIGITAL_API digital_framer_sink_1 : public gr_sync_block +{ + friend DIGITAL_API digital_framer_sink_1_sptr + digital_make_framer_sink_1(gr_msg_queue_sptr target_queue); + + private: + enum state_t {STATE_SYNC_SEARCH, STATE_HAVE_SYNC, STATE_HAVE_HEADER}; + + static const int MAX_PKT_LEN = 4096; + static const int HEADERBITLEN = 32; + + gr_msg_queue_sptr d_target_queue; // where to send the packet when received + state_t d_state; + unsigned int d_header; // header bits + int d_headerbitlen_cnt; // how many so far + + unsigned char d_packet[MAX_PKT_LEN]; // assembled payload + unsigned char d_packet_byte; // byte being assembled + int d_packet_byte_index; // which bit of d_packet_byte we're working on + int d_packetlen; // length of packet + int d_packet_whitener_offset; // offset into whitener string to use + int d_packetlen_cnt; // how many so far + + protected: + digital_framer_sink_1(gr_msg_queue_sptr target_queue); + + void enter_search(); + void enter_have_sync(); + void enter_have_header(int payload_len, int whitener_offset); + + bool header_ok() + { + // confirm that two copies of header info are identical + return ((d_header >> 16) ^ (d_header & 0xffff)) == 0; + } + + void header_payload(int *len, int *offset) + { + // header consists of two 16-bit shorts in network byte order + // payload length is lower 12 bits + // whitener offset is upper 4 bits + *len = (d_header >> 16) & 0x0fff; + *offset = (d_header >> 28) & 0x000f; + } + + public: + ~digital_framer_sink_1(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_FRAMER_SINK_1_H */ diff --git a/gr-digital/include/digital_glfsr_source_b.h b/gr-digital/include/digital_glfsr_source_b.h new file mode 100644 index 000000000..3cc570d3d --- /dev/null +++ b/gr-digital/include/digital_glfsr_source_b.h @@ -0,0 +1,70 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_GLFSR_SOURCE_B_H +#define INCLUDED_GR_GLFSR_SOURCE_B_H + +#include <digital_api.h> +#include <gr_sync_block.h> + +class gri_glfsr; + +class digital_glfsr_source_b; +typedef boost::shared_ptr<digital_glfsr_source_b> digital_glfsr_source_b_sptr; + +DIGITAL_API digital_glfsr_source_b_sptr +digital_make_glfsr_source_b(int degree, bool repeat=true, + int mask=0, int seed=1); + +/*! + * \brief Galois LFSR pseudo-random source + * \ingroup source_blk + */ +class DIGITAL_API digital_glfsr_source_b : public gr_sync_block +{ + private: + friend DIGITAL_API digital_glfsr_source_b_sptr + digital_make_glfsr_source_b(int degree, bool repeat, + int mask, int seed); + + gri_glfsr *d_glfsr; + + bool d_repeat; + unsigned int d_index; + unsigned int d_length; + + digital_glfsr_source_b(int degree, bool repeat, + int mask, int seed); + + public: + + ~digital_glfsr_source_b(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + unsigned int period() const { return d_length; } + int mask() const; +}; + +#endif /* INCLUDED_GR_GLFSR_SOURCE_B_H */ diff --git a/gr-digital/include/digital_glfsr_source_f.h b/gr-digital/include/digital_glfsr_source_f.h new file mode 100644 index 000000000..f8b2bf996 --- /dev/null +++ b/gr-digital/include/digital_glfsr_source_f.h @@ -0,0 +1,70 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_GLFSR_SOURCE_F_H +#define INCLUDED_GR_GLFSR_SOURCE_F_H + +#include <digital_api.h> +#include <gr_sync_block.h> + +class gri_glfsr; + +class digital_glfsr_source_f; +typedef boost::shared_ptr<digital_glfsr_source_f> digital_glfsr_source_f_sptr; + +DIGITAL_API digital_glfsr_source_f_sptr +digital_make_glfsr_source_f(int degree, bool repeat=true, + int mask=0, int seed=1); + +/*! + * \brief Galois LFSR pseudo-random source generating float outputs -1.0 - 1.0 + * \ingroup source_blk + */ +class DIGITAL_API digital_glfsr_source_f : public gr_sync_block +{ + private: + friend DIGITAL_API digital_glfsr_source_f_sptr + digital_make_glfsr_source_f(int degree, bool repeat, + int mask, int seed); + + gri_glfsr *d_glfsr; + + bool d_repeat; + unsigned int d_index; + unsigned int d_length; + + digital_glfsr_source_f(int degree, bool repeat, + int mask, int seed); + + public: + + ~digital_glfsr_source_f(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + unsigned int period() const { return d_length; } + int mask() const; +}; + +#endif /* INCLUDED_GR_GLFSR_SOURCE_F_H */ diff --git a/gr-digital/include/digital_impl_glfsr.h b/gr-digital/include/digital_impl_glfsr.h new file mode 100644 index 000000000..3aadf7cf2 --- /dev/null +++ b/gr-digital/include/digital_impl_glfsr.h @@ -0,0 +1,57 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_DIGITAL_IMPL_GLFSR_H +#define INCLUDED_DIGITAL_IMPL_GLFSR_H + +#include <digital_api.h> + +/*! + * \brief Galois Linear Feedback Shift Register using specified polynomial mask + * \ingroup misc + * + * Generates a maximal length pseudo-random sequence of length 2^degree-1 + */ + +class DIGITAL_API digital_impl_glfsr +{ + private: + int d_shift_register; + int d_mask; + + public: + + digital_impl_glfsr(int mask, int seed) { d_shift_register = seed; d_mask = mask; } + static int glfsr_mask(int degree); + + unsigned char next_bit() { + unsigned char bit = d_shift_register & 1; + d_shift_register >>= 1; + if (bit) + d_shift_register ^= d_mask; + return bit; + } + + int mask() const { return d_mask; } +}; + +#endif /* INCLUDED_DIGITAL_IMPL_GLFSR_H */ diff --git a/gr-digital/include/digital_map_bb.h b/gr-digital/include/digital_map_bb.h new file mode 100644 index 000000000..9f7e62555 --- /dev/null +++ b/gr-digital/include/digital_map_bb.h @@ -0,0 +1,54 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_GR_MAP_BB_H +#define INCLUDED_GR_MAP_BB_H + +#include <digital_api.h> +#include <gr_sync_block.h> + +class digital_map_bb; +typedef boost::shared_ptr<digital_map_bb> digital_map_bb_sptr; + +DIGITAL_API digital_map_bb_sptr +digital_make_map_bb(const std::vector<int> &map); + +/*! + * \brief output[i] = map[input[i]] + * \ingroup coding_blk + */ + +class DIGITAL_API digital_map_bb : public gr_sync_block +{ + friend DIGITAL_API digital_map_bb_sptr + digital_make_map_bb(const std::vector<int> &map); + + unsigned char d_map[0x100]; + + digital_map_bb(const std::vector<int> &map); + +public: + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_MAP_BB_H */ diff --git a/gr-digital/include/digital_packet_sink.h b/gr-digital/include/digital_packet_sink.h new file mode 100644 index 000000000..f9f51f6b1 --- /dev/null +++ b/gr-digital/include/digital_packet_sink.h @@ -0,0 +1,112 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_PACKET_SINK_H +#define INCLUDED_GR_PACKET_SINK_H + +#include <digital_api.h> +#include <gr_sync_block.h> +#include <gr_msg_queue.h> + +class digital_packet_sink; +typedef boost::shared_ptr<digital_packet_sink> digital_packet_sink_sptr; + +DIGITAL_API digital_packet_sink_sptr +digital_make_packet_sink(const std::vector<unsigned char>& sync_vector, + gr_msg_queue_sptr target_queue, + int threshold = -1); // -1 -> use default + +/*! + * \brief process received bits looking for packet sync, header, and process bits into packet + * \ingroup sink_blk + */ +class DIGITAL_API digital_packet_sink : public gr_sync_block +{ + friend DIGITAL_API digital_packet_sink_sptr + digital_make_packet_sink(const std::vector<unsigned char>& sync_vector, + gr_msg_queue_sptr target_queue, + int threshold); + + private: + enum state_t {STATE_SYNC_SEARCH, STATE_HAVE_SYNC, STATE_HAVE_HEADER}; + + static const int MAX_PKT_LEN = 4096; + static const int HEADERBITLEN = 32; + + gr_msg_queue_sptr d_target_queue; // where to send the packet when received + unsigned long long d_sync_vector; // access code to locate start of packet + unsigned int d_threshold; // how many bits may be wrong in sync vector + + state_t d_state; + + unsigned long long d_shift_reg; // used to look for sync_vector + + unsigned int d_header; // header bits + int d_headerbitlen_cnt; // how many so far + + unsigned char d_packet[MAX_PKT_LEN]; // assembled payload + unsigned char d_packet_byte; // byte being assembled + int d_packet_byte_index; // which bit of d_packet_byte we're working on + int d_packetlen; // length of packet + int d_packetlen_cnt; // how many so far + + protected: + digital_packet_sink(const std::vector<unsigned char>& sync_vector, + gr_msg_queue_sptr target_queue, + int threshold); + + void enter_search(); + void enter_have_sync(); + void enter_have_header(int payload_len); + + int slice(float x) { return x > 0 ? 1 : 0; } + + bool header_ok() + { + // confirm that two copies of header info are identical + return ((d_header >> 16) ^ (d_header & 0xffff)) == 0; + } + + int header_payload_len() + { + // header consists of two 16-bit shorts in network byte order + int t = (d_header >> 16) & 0xffff; + return t; + } + + public: + ~digital_packet_sink(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + + //! return true if we detect carrier + bool carrier_sensed() const + { + return d_state != STATE_SYNC_SEARCH; + } + +}; + +#endif /* INCLUDED_GR_PACKET_SINK_H */ diff --git a/gr-digital/include/digital_pfb_clock_sync_ccf.h b/gr-digital/include/digital_pfb_clock_sync_ccf.h new file mode 100644 index 000000000..f7996d175 --- /dev/null +++ b/gr-digital/include/digital_pfb_clock_sync_ccf.h @@ -0,0 +1,376 @@ +/* -*- c++ -*- */ +/* + * Copyright 2009,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + + +#ifndef INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_H +#define INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_H + +#include <digital_api.h> +#include <gr_block.h> + +class digital_pfb_clock_sync_ccf; +typedef boost::shared_ptr<digital_pfb_clock_sync_ccf> digital_pfb_clock_sync_ccf_sptr; +DIGITAL_API digital_pfb_clock_sync_ccf_sptr +digital_make_pfb_clock_sync_ccf(double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size=32, + float init_phase=0, + float max_rate_deviation=1.5, + int osps=1); + +class gr_fir_ccf; + +/*! + * \class digital_pfb_clock_sync_ccf + * + * \brief Timing synchronizer using polyphase filterbanks + * + * \ingroup filter_blk + * \ingroup pfb_blk + * + * This block performs timing synchronization for PAM signals by + * minimizing the derivative of the filtered signal, which in turn + * maximizes the SNR and minimizes ISI. + * + * This approach works by setting up two filterbanks; one filterbank + * contains the signal's pulse shaping matched filter (such as a root + * raised cosine filter), where each branch of the filterbank contains + * a different phase of the filter. The second filterbank contains + * the derivatives of the filters in the first filterbank. Thinking of + * this in the time domain, the first filterbank contains filters that + * have a sinc shape to them. We want to align the output signal to be + * sampled at exactly the peak of the sinc shape. The derivative of + * the sinc contains a zero at the maximum point of the sinc (sinc(0) + * = 1, sinc(0)' = 0). Furthermore, the region around the zero point + * is relatively linear. We make use of this fact to generate the + * error signal. + * + * If the signal out of the derivative filters is d_i[n] for the ith + * filter, and the output of the matched filter is x_i[n], we + * calculate the error as: e[n] = (Re{x_i[n]} * Re{d_i[n]} + + * Im{x_i[n]} * Im{d_i[n]}) / 2.0 This equation averages the error in + * the real and imaginary parts. There are two reasons we multiply by + * the signal itself. First, if the symbol could be positive or + * negative going, but we want the error term to always tell us to go + * in the same direction depending on which side of the zero point we + * are on. The sign of x_i[n] adjusts the error term to do + * this. Second, the magnitude of x_i[n] scales the error term + * depending on the symbol's amplitude, so larger signals give us a + * stronger error term because we have more confidence in that + * symbol's value. Using the magnitude of x_i[n] instead of just the + * sign is especially good for signals with low SNR. + * + * The error signal, e[n], gives us a value proportional to how far + * away from the zero point we are in the derivative signal. We want + * to drive this value to zero, so we set up a second order loop. We + * have two variables for this loop; d_k is the filter number in the + * filterbank we are on and d_rate is the rate which we travel through + * the filters in the steady state. That is, due to the natural clock + * differences between the transmitter and receiver, d_rate represents + * that difference and would traverse the filter phase paths to keep + * the receiver locked. Thinking of this as a second-order PLL, the + * d_rate is the frequency and d_k is the phase. So we update d_rate + * and d_k using the standard loop equations based on two error + * signals, d_alpha and d_beta. We have these two values set based on + * each other for a critically damped system, so in the block + * constructor, we just ask for "gain," which is d_alpha while d_beta + * is equal to (gain^2)/4. + * + * The block's parameters are: + * + * \li \p sps: The clock sync block needs to know the number of samples per + * symbol, because it defaults to return a single point representing + * the symbol. The sps can be any positive real number and does not + * need to be an integer. + * + * \li \p loop_bw: The loop bandwidth is used to set the gain of the + * inner control loop (see: + * http://gnuradio.squarespace.com/blog/2011/8/13/control-loop-gain-values.html). + * This should be set small (a value of around 2pi/100 is suggested in + * that blog post as the step size for the number of radians around + * the unit circle to move relative to the error). + * + * \li \p taps: One of the most important parameters for this block is + * the taps of the filter. One of the benefits of this algorithm is + * that you can put the matched filter in here as the taps, so you get + * both the matched filter and sample timing correction in one go. So + * create your normal matched filter. For a typical digital + * modulation, this is a root raised cosine filter. The number of taps + * of this filter is based on how long you expect the channel to be; + * that is, how many symbols do you want to combine to get the current + * symbols energy back (there's probably a better way of stating + * that). It's usually 5 to 10 or so. That gives you your filter, but + * now we need to think about it as a filter with different phase + * profiles in each filter. So take this number of taps and multiply + * it by the number of filters. This is the number you would use to + * create your prototype filter. When you use this in the PFB + * filerbank, it segments these taps into the filterbanks in such a + * way that each bank now represents the filter at different phases, + * equally spaced at 2pi/N, where N is the number of filters. + * + * \li \p filter_size (default=32): The number of filters can also be + * set and defaults to 32. With 32 filters, you get a good enough + * resolution in the phase to produce very small, almost unnoticeable, + * ISI. Going to 64 filters can reduce this more, but after that + * there is very little gained for the extra complexity. + * + * \li \p init_phase (default=0): The initial phase is another + * settable parameter and refers to the filter path the algorithm + * initially looks at (i.e., d_k starts at init_phase). This value + * defaults to zero, but it might be useful to start at a different + * phase offset, such as the mid-point of the filters. + * + * \li \p max_rate_deviation (default=1.5): The next parameter is the + * max_rate_devitation, which defaults to 1.5. This is how far we + * allow d_rate to swing, positive or negative, from 0. Constraining + * the rate can help keep the algorithm from walking too far away to + * lock during times when there is no signal. + * + * \li \p osps (default=1): The osps is the number of output samples per symbol. By default, + * the algorithm produces 1 sample per symbol, sampled at the exact + * sample value. This osps value was added to better work with + * equalizers, which do a better job of modeling the channel if they + * have 2 samps/sym. + */ + +class GR_CORE_API digital_pfb_clock_sync_ccf : public gr_block +{ + private: + /*! + * Build the polyphase filterbank timing synchronizer. + * \param sps (double) The number of samples per symbol in the incoming signal + * \param loop_bw (float) The bandwidth of the control loop; set's alpha and beta. + * \param taps (vector<int>) The filter taps. + * \param filter_size (uint) The number of filters in the filterbank (default = 32). + * \param init_phase (float) The initial phase to look at, or which filter to start + * with (default = 0). + * \param max_rate_deviation (float) Distance from 0 d_rate can get (default = 1.5). + * \param osps (int) The number of output samples per symbol (default=1). + * + */ + friend DIGITAL_API digital_pfb_clock_sync_ccf_sptr + digital_make_pfb_clock_sync_ccf(double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps); + + bool d_updated; + double d_sps; + double d_sample_num; + float d_loop_bw; + float d_damping; + float d_alpha; + float d_beta; + + int d_nfilters; + int d_taps_per_filter; + std::vector<gr_fir_ccf*> d_filters; + std::vector<gr_fir_ccf*> d_diff_filters; + std::vector< std::vector<float> > d_taps; + std::vector< std::vector<float> > d_dtaps; + + float d_k; + float d_rate; + float d_rate_i; + float d_rate_f; + float d_max_dev; + int d_filtnum; + int d_osps; + float d_error; + int d_out_idx; + + /*! + * Build the polyphase filterbank timing synchronizer. + */ + digital_pfb_clock_sync_ccf(double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps); + + void create_diff_taps(const std::vector<float> &newtaps, + std::vector<float> &difftaps); + +public: + ~digital_pfb_clock_sync_ccf(); + + /*! \brief update the system gains from omega and eta + * + * This function updates the system gains based on the loop + * bandwidth and damping factor of the system. + * These two factors can be set separately through their own + * set functions. + */ + void update_gains(); + + /*! + * Resets the filterbank's filter taps with the new prototype filter + */ + void set_taps(const std::vector<float> &taps, + std::vector< std::vector<float> > &ourtaps, + std::vector<gr_fir_ccf*> &ourfilter); + + /*! + * Returns all of the taps of the matched filter + */ + std::vector< std::vector<float> > get_taps(); + + /*! + * Returns all of the taps of the derivative filter + */ + std::vector< std::vector<float> > get_diff_taps(); + + /*! + * Returns the taps of the matched filter for a particular channel + */ + std::vector<float> get_channel_taps(int channel); + + /*! + * Returns the taps in the derivative filter for a particular channel + */ + std::vector<float> get_diff_channel_taps(int channel); + + /*! + * Return the taps as a formatted string for printing + */ + std::string get_taps_as_string(); + + /*! + * Return the derivative filter taps as a formatted string for printing + */ + std::string get_diff_taps_as_string(); + + + /******************************************************************* + SET FUNCTIONS + *******************************************************************/ + + + /*! + * \brief Set the loop bandwidth + * + * Set the loop filter's bandwidth to \p bw. This should be between + * 2*pi/200 and 2*pi/100 (in rads/samp). It must also be a positive + * number. + * + * When a new damping factor is set, the gains, alpha and beta, of the loop + * are recalculated by a call to update_gains(). + * + * \param bw (float) new bandwidth + * + */ + void set_loop_bandwidth(float bw); + + /*! + * \brief Set the loop damping factor + * + * Set the loop filter's damping factor to \p df. The damping factor + * should be sqrt(2)/2.0 for critically damped systems. + * Set it to anything else only if you know what you are doing. It must + * be a number between 0 and 1. + * + * When a new damping factor is set, the gains, alpha and beta, of the loop + * are recalculated by a call to update_gains(). + * + * \param df (float) new damping factor + * + */ + void set_damping_factor(float df); + + /*! + * \brief Set the loop gain alpha + * + * Set's the loop filter's alpha gain parameter. + * + * This value should really only be set by adjusting the loop bandwidth + * and damping factor. + * + * \param alpha (float) new alpha gain + * + */ + void set_alpha(float alpha); + + /*! + * \brief Set the loop gain beta + * + * Set's the loop filter's beta gain parameter. + * + * This value should really only be set by adjusting the loop bandwidth + * and damping factor. + * + * \param beta (float) new beta gain + * + */ + void set_beta(float beta); + + /*! + * Set the maximum deviation from 0 d_rate can have + */ + void set_max_rate_deviation(float m) + { + d_max_dev = m; + } + + /******************************************************************* + GET FUNCTIONS + *******************************************************************/ + + /*! + * \brief Returns the loop bandwidth + */ + float get_loop_bandwidth() const; + + /*! + * \brief Returns the loop damping factor + */ + float get_damping_factor() const; + + /*! + * \brief Returns the loop gain alpha + */ + float get_alpha() const; + + /*! + * \brief Returns the loop gain beta + */ + float get_beta() const; + + /*! + * \brief Returns the current clock rate + */ + float get_clock_rate() const; + + /******************************************************************* + *******************************************************************/ + + bool check_topology(int ninputs, int noutputs); + + int general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif diff --git a/gr-digital/include/digital_pfb_clock_sync_fff.h b/gr-digital/include/digital_pfb_clock_sync_fff.h new file mode 100644 index 000000000..e571100d7 --- /dev/null +++ b/gr-digital/include/digital_pfb_clock_sync_fff.h @@ -0,0 +1,376 @@ +/* -*- c++ -*- */ +/* + * Copyright 2009,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + + +#ifndef INCLUDED_DIGITAL_PFB_CLOCK_SYNC_FFF_H +#define INCLUDED_DIGITAL_PFB_CLOCK_SYNC_FFF_H + +#include <digital_api.h> +#include <gr_block.h> + +class digital_pfb_clock_sync_fff; +typedef boost::shared_ptr<digital_pfb_clock_sync_fff> digital_pfb_clock_sync_fff_sptr; +DIGITAL_API digital_pfb_clock_sync_fff_sptr +digital_make_pfb_clock_sync_fff(double sps, float gain, + const std::vector<float> &taps, + unsigned int filter_size=32, + float init_phase=0, + float max_rate_deviation=1.5, + int osps=1); + +class gr_fir_fff; + +/*! + * \class digital_pfb_clock_sync_fff + * + * \brief Timing synchronizer using polyphase filterbanks + * + * \ingroup filter_blk + * \ingroup pfb_blk + * + * This block performs timing synchronization for PAM signals by + * minimizing the derivative of the filtered signal, which in turn + * maximizes the SNR and minimizes ISI. + * + * This approach works by setting up two filterbanks; one filterbank + * contains the signal's pulse shaping matched filter (such as a root + * raised cosine filter), where each branch of the filterbank contains + * a different phase of the filter. The second filterbank contains + * the derivatives of the filters in the first filterbank. Thinking of + * this in the time domain, the first filterbank contains filters that + * have a sinc shape to them. We want to align the output signal to be + * sampled at exactly the peak of the sinc shape. The derivative of + * the sinc contains a zero at the maximum point of the sinc (sinc(0) + * = 1, sinc(0)' = 0). Furthermore, the region around the zero point + * is relatively linear. We make use of this fact to generate the + * error signal. + * + * If the signal out of the derivative filters is d_i[n] for the ith + * filter, and the output of the matched filter is x_i[n], we + * calculate the error as: e[n] = (Re{x_i[n]} * Re{d_i[n]} + + * Im{x_i[n]} * Im{d_i[n]}) / 2.0 This equation averages the error in + * the real and imaginary parts. There are two reasons we multiply by + * the signal itself. First, if the symbol could be positive or + * negative going, but we want the error term to always tell us to go + * in the same direction depending on which side of the zero point we + * are on. The sign of x_i[n] adjusts the error term to do + * this. Second, the magnitude of x_i[n] scales the error term + * depending on the symbol's amplitude, so larger signals give us a + * stronger error term because we have more confidence in that + * symbol's value. Using the magnitude of x_i[n] instead of just the + * sign is especially good for signals with low SNR. + * + * The error signal, e[n], gives us a value proportional to how far + * away from the zero point we are in the derivative signal. We want + * to drive this value to zero, so we set up a second order loop. We + * have two variables for this loop; d_k is the filter number in the + * filterbank we are on and d_rate is the rate which we travel through + * the filters in the steady state. That is, due to the natural clock + * differences between the transmitter and receiver, d_rate represents + * that difference and would traverse the filter phase paths to keep + * the receiver locked. Thinking of this as a second-order PLL, the + * d_rate is the frequency and d_k is the phase. So we update d_rate + * and d_k using the standard loop equations based on two error + * signals, d_alpha and d_beta. We have these two values set based on + * each other for a critically damped system, so in the block + * constructor, we just ask for "gain," which is d_alpha while d_beta + * is equal to (gain^2)/4. + * + * The block's parameters are: + * + * \li \p sps: The clock sync block needs to know the number of samples per + * symbol, because it defaults to return a single point representing + * the symbol. The sps can be any positive real number and does not + * need to be an integer. + * + * \li \p loop_bw: The loop bandwidth is used to set the gain of the + * inner control loop (see: + * http://gnuradio.squarespace.com/blog/2011/8/13/control-loop-gain-values.html). + * This should be set small (a value of around 2pi/100 is suggested in + * that blog post as the step size for the number of radians around + * the unit circle to move relative to the error). + * + * \li \p taps: One of the most important parameters for this block is + * the taps of the filter. One of the benefits of this algorithm is + * that you can put the matched filter in here as the taps, so you get + * both the matched filter and sample timing correction in one go. So + * create your normal matched filter. For a typical digital + * modulation, this is a root raised cosine filter. The number of taps + * of this filter is based on how long you expect the channel to be; + * that is, how many symbols do you want to combine to get the current + * symbols energy back (there's probably a better way of stating + * that). It's usually 5 to 10 or so. That gives you your filter, but + * now we need to think about it as a filter with different phase + * profiles in each filter. So take this number of taps and multiply + * it by the number of filters. This is the number you would use to + * create your prototype filter. When you use this in the PFB + * filerbank, it segments these taps into the filterbanks in such a + * way that each bank now represents the filter at different phases, + * equally spaced at 2pi/N, where N is the number of filters. + * + * \li \p filter_size (default=32): The number of filters can also be + * set and defaults to 32. With 32 filters, you get a good enough + * resolution in the phase to produce very small, almost unnoticeable, + * ISI. Going to 64 filters can reduce this more, but after that + * there is very little gained for the extra complexity. + * + * \li \p init_phase (default=0): The initial phase is another + * settable parameter and refers to the filter path the algorithm + * initially looks at (i.e., d_k starts at init_phase). This value + * defaults to zero, but it might be useful to start at a different + * phase offset, such as the mid-point of the filters. + * + * \li \p max_rate_deviation (default=1.5): The next parameter is the + * max_rate_devitation, which defaults to 1.5. This is how far we + * allow d_rate to swing, positive or negative, from 0. Constraining + * the rate can help keep the algorithm from walking too far away to + * lock during times when there is no signal. + * + * \li \p osps (default=1): The osps is the number of output samples + * per symbol. By default, the algorithm produces 1 sample per symbol, + * sampled at the exact sample value. This osps value was added to + * better work with equalizers, which do a better job of modeling the + * channel if they have 2 samps/sym. + */ + +class GR_CORE_API digital_pfb_clock_sync_fff : public gr_block +{ + private: + /*! + * Build the polyphase filterbank timing synchronizer. + * \param sps (double) The number of samples per second in the incoming signal + * \param gain (float) The alpha gain of the control loop; beta = (gain^2)/4 by default. + * \param taps (vector<int>) The filter taps. + * \param filter_size (uint) The number of filters in the filterbank (default = 32). + * \param init_phase (float) The initial phase to look at, or which filter to start + * with (default = 0). + * \param max_rate_deviation (float) Distance from 0 d_rate can get (default = 1.5). + * \param osps (int) The number of output samples per symbol (default=1). + * + */ + friend DIGITAL_API digital_pfb_clock_sync_fff_sptr + digital_make_pfb_clock_sync_fff(double sps, float gain, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps); + + bool d_updated; + double d_sps; + double d_sample_num; + float d_loop_bw; + float d_damping; + float d_alpha; + float d_beta; + + int d_nfilters; + int d_taps_per_filter; + std::vector<gr_fir_fff*> d_filters; + std::vector<gr_fir_fff*> d_diff_filters; + std::vector< std::vector<float> > d_taps; + std::vector< std::vector<float> > d_dtaps; + + float d_k; + float d_rate; + float d_rate_i; + float d_rate_f; + float d_max_dev; + int d_filtnum; + int d_osps; + float d_error; + int d_out_idx; + + /*! + * Build the polyphase filterbank timing synchronizer. + */ + digital_pfb_clock_sync_fff(double sps, float gain, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps); + + void create_diff_taps(const std::vector<float> &newtaps, + std::vector<float> &difftaps); + +public: + ~digital_pfb_clock_sync_fff (); + + /*! \brief update the system gains from omega and eta + * + * This function updates the system gains based on the loop + * bandwidth and damping factor of the system. + * These two factors can be set separately through their own + * set functions. + */ + void update_gains(); + + /*! + * Resets the filterbank's filter taps with the new prototype filter + */ + void set_taps(const std::vector<float> &taps, + std::vector< std::vector<float> > &ourtaps, + std::vector<gr_fir_fff*> &ourfilter); + + /*! + * Returns all of the taps of the matched filter + */ + std::vector< std::vector<float> > get_taps(); + + /*! + * Returns all of the taps of the derivative filter + */ + std::vector< std::vector<float> > get_diff_taps(); + + /*! + * Returns the taps of the matched filter for a particular channel + */ + std::vector<float> get_channel_taps(int channel); + + /*! + * Returns the taps in the derivative filter for a particular channel + */ + std::vector<float> get_diff_channel_taps(int channel); + + /*! + * Return the taps as a formatted string for printing + */ + std::string get_taps_as_string(); + + /*! + * Return the derivative filter taps as a formatted string for printing + */ + std::string get_diff_taps_as_string(); + + + /******************************************************************* + SET FUNCTIONS + *******************************************************************/ + + + /*! + * \brief Set the loop bandwidth + * + * Set the loop filter's bandwidth to \p bw. This should be between + * 2*pi/200 and 2*pi/100 (in rads/samp). It must also be a positive + * number. + * + * When a new damping factor is set, the gains, alpha and beta, of the loop + * are recalculated by a call to update_gains(). + * + * \param bw (float) new bandwidth + * + */ + void set_loop_bandwidth(float bw); + + /*! + * \brief Set the loop damping factor + * + * Set the loop filter's damping factor to \p df. The damping factor + * should be sqrt(2)/2.0 for critically damped systems. + * Set it to anything else only if you know what you are doing. It must + * be a number between 0 and 1. + * + * When a new damping factor is set, the gains, alpha and beta, of the loop + * are recalculated by a call to update_gains(). + * + * \param df (float) new damping factor + * + */ + void set_damping_factor(float df); + + /*! + * \brief Set the loop gain alpha + * + * Set's the loop filter's alpha gain parameter. + * + * This value should really only be set by adjusting the loop bandwidth + * and damping factor. + * + * \param alpha (float) new alpha gain + * + */ + void set_alpha(float alpha); + + /*! + * \brief Set the loop gain beta + * + * Set's the loop filter's beta gain parameter. + * + * This value should really only be set by adjusting the loop bandwidth + * and damping factor. + * + * \param beta (float) new beta gain + * + */ + void set_beta(float beta); + + /*! + * Set the maximum deviation from 0 d_rate can have + */ + void set_max_rate_deviation(float m) + { + d_max_dev = m; + } + + /******************************************************************* + GET FUNCTIONS + *******************************************************************/ + + /*! + * \brief Returns the loop bandwidth + */ + float get_loop_bandwidth() const; + + /*! + * \brief Returns the loop damping factor + */ + float get_damping_factor() const; + + /*! + * \brief Returns the loop gain alpha + */ + float get_alpha() const; + + /*! + * \brief Returns the loop gain beta + */ + float get_beta() const; + + /*! + * \brief Returns the current clock rate + */ + float get_clock_rate() const; + + /******************************************************************* + *******************************************************************/ + + bool check_topology(int ninputs, int noutputs); + + int general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif diff --git a/gr-digital/include/digital_pn_correlator_cc.h b/gr-digital/include/digital_pn_correlator_cc.h new file mode 100644 index 000000000..33b5314fa --- /dev/null +++ b/gr-digital/include/digital_pn_correlator_cc.h @@ -0,0 +1,63 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_PN_CORRELATOR_CC_H +#define INCLUDED_GR_PN_CORRELATOR_CC_H + +#include <digital_api.h> +#include <gr_sync_decimator.h> +#include <gri_glfsr.h> + +class digital_pn_correlator_cc; +typedef boost::shared_ptr<digital_pn_correlator_cc> digital_pn_correlator_cc_sptr; + +DIGITAL_API digital_pn_correlator_cc_sptr +digital_make_pn_correlator_cc(int degree, int mask=0, int seed=1); +/*! + * \brief PN code sequential search correlator + * + * \ingroup sync_blk + * Receives complex baseband signal, outputs complex correlation against + * reference PN code, one sample per PN code period + */ + +class DIGITAL_API digital_pn_correlator_cc : public gr_sync_decimator +{ + friend DIGITAL_API digital_pn_correlator_cc_sptr + digital_make_pn_correlator_cc(int degree, int mask, int seed); + + int d_len; + float d_pn; + gri_glfsr *d_reference; + + protected: + digital_pn_correlator_cc(int degree, int mask, int seed); + + public: + virtual int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + ~digital_pn_correlator_cc(); +}; + +#endif /* INCLUDED_GR_PN_CORRELATOR_CC_H */ diff --git a/gr-digital/include/digital_probe_density_b.h b/gr-digital/include/digital_probe_density_b.h new file mode 100644 index 000000000..271ad2a07 --- /dev/null +++ b/gr-digital/include/digital_probe_density_b.h @@ -0,0 +1,75 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2012 Free Software Foundation, Inc. + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_GR_PROBE_DENSITY_B_H +#define INCLUDED_GR_PROBE_DENSITY_B_H + +#include <digital_api.h> +#include <gr_sync_block.h> + +class digital_probe_density_b; + +typedef boost::shared_ptr<digital_probe_density_b> digital_probe_density_b_sptr; + +DIGITAL_API digital_probe_density_b_sptr +digital_make_probe_density_b(double alpha); + +/*! + * This block maintains a running average of the input stream and + * makes it available as an accessor function. The input stream + * is type unsigned char. + * + * If you send this block a stream of unpacked bytes, it will tell + * you what the bit density is. + * + * \param alpha Average filter constant + * + */ + +class DIGITAL_API digital_probe_density_b : public gr_sync_block +{ +private: + friend DIGITAL_API digital_probe_density_b_sptr + digital_make_probe_density_b(double alpha); + + double d_alpha; + double d_beta; + double d_density; + + digital_probe_density_b(double alpha); + +public: + ~digital_probe_density_b(); + + /*! + * \brief Returns the current density value + */ + double density() const { return d_density; } + + /*! + * \brief Set the average filter constant + */ + void set_alpha(double alpha); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_PROBE_DENSITY_B_H */ diff --git a/gr-digital/include/digital_scrambler_bb.h b/gr-digital/include/digital_scrambler_bb.h new file mode 100644 index 000000000..d6f08dcc8 --- /dev/null +++ b/gr-digital/include/digital_scrambler_bb.h @@ -0,0 +1,62 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_GR_SCRAMBLER_BB_H +#define INCLUDED_GR_SCRAMBLER_BB_H + +#include <digital_api.h> +#include <gr_sync_block.h> +#include "gri_lfsr.h" + +class digital_scrambler_bb; +typedef boost::shared_ptr<digital_scrambler_bb> digital_scrambler_bb_sptr; + +DIGITAL_API digital_scrambler_bb_sptr +digital_make_scrambler_bb(int mask, int seed, int len); + +/*! + * Scramble an input stream using an LFSR. This block works on the LSB only + * of the input data stream, i.e., on an "unpacked binary" stream, and + * produces the same format on its output. + * + * \param mask Polynomial mask for LFSR + * \param seed Initial shift register contents + * \param len Shift register length + * + * \ingroup coding_blk + */ + +class DIGITAL_API digital_scrambler_bb : public gr_sync_block +{ + friend DIGITAL_API digital_scrambler_bb_sptr + digital_make_scrambler_bb(int mask, int seed, int len); + + gri_lfsr d_lfsr; + + digital_scrambler_bb(int mask, int seed, int len); + +public: + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_SCRAMBLER_BB_H */ diff --git a/gr-digital/include/digital_simple_framer.h b/gr-digital/include/digital_simple_framer.h new file mode 100644 index 000000000..5dcab05cb --- /dev/null +++ b/gr-digital/include/digital_simple_framer.h @@ -0,0 +1,60 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_SIMPLE_FRAMER_H +#define INCLUDED_GR_SIMPLE_FRAMER_H + +#include <digital_api.h> +#include <gr_block.h> + +class digital_simple_framer; +typedef boost::shared_ptr<digital_simple_framer> digital_simple_framer_sptr; + +DIGITAL_API digital_simple_framer_sptr digital_make_simple_framer(int payload_bytesize); + +/*! + * \brief add sync field, seq number and command field to payload + * \ingroup sync_blk + */ +class DIGITAL_API digital_simple_framer : public gr_block +{ + int d_seqno; + int d_payload_bytesize; + int d_input_block_size; // bytes + int d_output_block_size; // bytes + + friend DIGITAL_API digital_simple_framer_sptr + digital_make_simple_framer(int payload_bytesize); + digital_simple_framer(int payload_bytesize); + + public: + void forecast(int noutput_items, + gr_vector_int &ninput_items_required); + + int general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + + +#endif /* INCLUDED_GR_SIMPLE_FRAMER_H */ diff --git a/gr-digital/include/digital_simple_framer_sync.h b/gr-digital/include/digital_simple_framer_sync.h new file mode 100644 index 000000000..412003582 --- /dev/null +++ b/gr-digital/include/digital_simple_framer_sync.h @@ -0,0 +1,51 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2005,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_SIMPLE_FRAMER_SYNC_H +#define INCLUDED_GR_SIMPLE_FRAMER_SYNC_H + +/*! + * \brief Here are a couple of maximum length sequences (m-sequences) + * that were generated by the the "mseq" matlab/octave code downloaded + * from: <a href="http://www.mathworks.com/matlabcentral/fileexchange/990">http://www.mathworks.com/matlabcentral/fileexchange/990</a> + * + * <pre> + * 31-bit m-sequence: + * 0110100100001010111011000111110 + * 0x690AEC76 (padded on right with a zero) + * + * 63-bit m-sequence: + * 101011001101110110100100111000101111001010001100001000001111110 + * 0xACDDA4E2F28C20FC (padded on right with a zero) + * </pre> + */ + +static const unsigned long long GRSF_SYNC = 0xacdda4e2f28c20fcULL; + +static const int GRSF_BITS_PER_BYTE = 8; +static const int GRSF_SYNC_OVERHEAD = sizeof(GRSF_SYNC); +static const int GRSF_PAYLOAD_OVERHEAD = 1; // 1 byte seqno +static const int GRSF_TAIL_PAD = 1; // one byte trailing padding +static const int GRSF_OVERHEAD = GRSF_SYNC_OVERHEAD + GRSF_PAYLOAD_OVERHEAD + GRSF_TAIL_PAD; + + +#endif /* INCLUDED_GR_SIMPLE_FRAMER_SYNC_H */ diff --git a/gr-digital/lib/CMakeLists.txt b/gr-digital/lib/CMakeLists.txt index 779972ff3..f62673ccd 100644 --- a/gr-digital/lib/CMakeLists.txt +++ b/gr-digital/lib/CMakeLists.txt @@ -1,4 +1,4 @@ -# Copyright 2011 Free Software Foundation, Inc. +# Copyright 2011,2012 Free Software Foundation, Inc. # # This file is part of GNU Radio # @@ -32,20 +32,34 @@ link_directories(${Boost_LIBRARY_DIRS}) # Setup library ######################################################################## list(APPEND gr_digital_sources + digital_impl_glfsr.cc digital_impl_mpsk_snr_est.cc + digital_additive_scrambler_bb.cc digital_binary_slicer_fb.cc + digital_bytes_to_syms.cc digital_clock_recovery_mm_cc.cc digital_clock_recovery_mm_ff.cc + digital_cma_equalizer_cc.cc digital_constellation.cc digital_constellation_receiver_cb.cc digital_constellation_decoder_cb.cc digital_correlate_access_code_bb.cc + digital_correlate_access_code_tag_bb.cc digital_costas_loop_cc.cc - digital_cma_equalizer_cc.cc + digital_cpmmod_bc.cc digital_crc32.cc + digital_descrambler_bb.cc + digital_diff_decoder_bb.cc + digital_diff_encoder_bb.cc + digital_diff_phasor_cc.cc digital_fll_band_edge_cc.cc + digital_framer_sink_1.cc + digital_glfsr_source_b.cc + digital_glfsr_source_f.cc + digital_gmskmod_bc.cc digital_lms_dd_equalizer_cc.cc digital_kurtotic_equalizer_cc.cc + digital_map_bb.cc digital_mpsk_receiver_cc.cc digital_mpsk_snr_est_cc.cc digital_ofdm_cyclic_prefixer.cc @@ -54,9 +68,14 @@ list(APPEND gr_digital_sources digital_ofdm_insert_preamble.cc digital_ofdm_mapper_bcv.cc digital_ofdm_sampler.cc + digital_packet_sink.cc + digital_pfb_clock_sync_ccf.cc + digital_pfb_clock_sync_fff.cc + digital_pn_correlator_cc.cc + digital_probe_density_b.cc digital_probe_mpsk_snr_est_c.cc - digital_gmskmod_bc.cc - digital_cpmmod_bc.cc + digital_scrambler_bb.cc + digital_simple_framer.cc ) list(APPEND digital_libs diff --git a/gr-digital/lib/digital_additive_scrambler_bb.cc b/gr-digital/lib/digital_additive_scrambler_bb.cc new file mode 100644 index 000000000..a8affaa78 --- /dev/null +++ b/gr-digital/lib/digital_additive_scrambler_bb.cc @@ -0,0 +1,69 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_additive_scrambler_bb.h> +#include <gr_io_signature.h> + +digital_additive_scrambler_bb_sptr +digital_make_additive_scrambler_bb(int mask, int seed, int len, int count) +{ + return gnuradio::get_initial_sptr(new digital_additive_scrambler_bb + (mask, seed, len, count)); +} + +digital_additive_scrambler_bb::digital_additive_scrambler_bb(int mask, + int seed, + int len, + int count) + : gr_sync_block("additive_scrambler_bb", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (unsigned char))), + d_lfsr(mask, seed, len), + d_count(count), + d_bits(0) +{ +} + +int +digital_additive_scrambler_bb::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + for (int i = 0; i < noutput_items; i++) { + out[i] = in[i]^d_lfsr.next_bit(); + if (d_count > 0) { + if (++d_bits == d_count) { + d_lfsr.reset(); + d_bits = 0; + } + } + } + + return noutput_items; +} diff --git a/gr-digital/lib/digital_bytes_to_syms.cc b/gr-digital/lib/digital_bytes_to_syms.cc new file mode 100644 index 000000000..f8bd82d5b --- /dev/null +++ b/gr-digital/lib/digital_bytes_to_syms.cc @@ -0,0 +1,74 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_bytes_to_syms.h> +#include <gr_io_signature.h> +#include <assert.h> + +static const int BITS_PER_BYTE = 8; + +digital_bytes_to_syms_sptr +digital_make_bytes_to_syms () +{ + return gnuradio::get_initial_sptr(new digital_bytes_to_syms ()); +} + +digital_bytes_to_syms::digital_bytes_to_syms () + : gr_sync_interpolator ("bytes_to_syms", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (float)), + BITS_PER_BYTE) +{ +} + +int +digital_bytes_to_syms::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (unsigned char *) input_items[0]; + float *out = (float *) output_items[0]; + + assert (noutput_items % BITS_PER_BYTE == 0); + + for (int i = 0; i < noutput_items / BITS_PER_BYTE; i++) { + int x = in[i]; + + *out++ = (((x >> 7) & 0x1) << 1) - 1; + *out++ = (((x >> 6) & 0x1) << 1) - 1; + *out++ = (((x >> 5) & 0x1) << 1) - 1; + *out++ = (((x >> 4) & 0x1) << 1) - 1; + *out++ = (((x >> 3) & 0x1) << 1) - 1; + *out++ = (((x >> 2) & 0x1) << 1) - 1; + *out++ = (((x >> 1) & 0x1) << 1) - 1; + *out++ = (((x >> 0) & 0x1) << 1) - 1; + } + + return noutput_items; +} + + + diff --git a/gr-digital/lib/digital_correlate_access_code_tag_bb.cc b/gr-digital/lib/digital_correlate_access_code_tag_bb.cc new file mode 100644 index 000000000..95f06534e --- /dev/null +++ b/gr-digital/lib/digital_correlate_access_code_tag_bb.cc @@ -0,0 +1,131 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2006,2010-2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_correlate_access_code_tag_bb.h> +#include <gr_io_signature.h> +#include <stdexcept> +#include <gr_count_bits.h> +#include <cstdio> +#include <iostream> + +#define VERBOSE 0 + + +digital_correlate_access_code_tag_bb_sptr +digital_make_correlate_access_code_tag_bb (const std::string &access_code, + int threshold, + const std::string &tag_name) +{ + return gnuradio::get_initial_sptr(new digital_correlate_access_code_tag_bb + (access_code, threshold, tag_name)); +} + + +digital_correlate_access_code_tag_bb::digital_correlate_access_code_tag_bb ( + const std::string &access_code, int threshold, const std::string &tag_name) + : gr_sync_block ("correlate_access_code_tag_bb", + gr_make_io_signature (1, 1, sizeof(char)), + gr_make_io_signature (1, 1, sizeof(char))), + d_data_reg(0), d_mask(0), + d_threshold(threshold), d_len(0) +{ + if (!set_access_code(access_code)) { + fprintf(stderr, "digital_correlate_access_code_tag_bb: access_code is > 64 bits\n"); + throw std::out_of_range ("access_code is > 64 bits"); + } + + std::stringstream str; + str << name() << unique_id(); + d_me = pmt::pmt_string_to_symbol(str.str()); + d_key = pmt::pmt_string_to_symbol(tag_name); +} + +digital_correlate_access_code_tag_bb::~digital_correlate_access_code_tag_bb () +{ +} + +bool +digital_correlate_access_code_tag_bb::set_access_code( + const std::string &access_code) +{ + d_len = access_code.length(); // # of bytes in string + if (d_len > 64) + return false; + + // set len top bits to 1. + d_mask = ((~0ULL) >> (64 - d_len)) << (64 - d_len); + + d_access_code = 0; + for (unsigned i=0; i < 64; i++){ + d_access_code <<= 1; + if (i < d_len) + d_access_code |= access_code[i] & 1; // look at LSB only + } + + return true; +} + +int +digital_correlate_access_code_tag_bb::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + uint64_t abs_out_sample_cnt = nitems_written(0); + + for (int i = 0; i < noutput_items; i++){ + + out[i] = in[i]; + + // compute hamming distance between desired access code and current data + unsigned long long wrong_bits = 0; + unsigned int nwrong = d_threshold+1; + int new_flag = 0; + + wrong_bits = (d_data_reg ^ d_access_code) & d_mask; + nwrong = gr_count_bits64(wrong_bits); + + // test for access code with up to threshold errors + new_flag = (nwrong <= d_threshold); + + // shift in new data and new flag + d_data_reg = (d_data_reg << 1) | (in[i] & 0x1); + if (new_flag) { + if(VERBOSE) std::cout << "writing tag at sample " << abs_out_sample_cnt + i << std::endl; + add_item_tag(0, //stream ID + abs_out_sample_cnt + i - 64 + d_len, //sample + d_key, //frame info + pmt::pmt_t(), //data (unused) + d_me //block src id + ); + } + } + + return noutput_items; +} + diff --git a/gr-digital/lib/digital_descrambler_bb.cc b/gr-digital/lib/digital_descrambler_bb.cc new file mode 100644 index 000000000..68cba7145 --- /dev/null +++ b/gr-digital/lib/digital_descrambler_bb.cc @@ -0,0 +1,56 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_descrambler_bb.h> +#include <gr_io_signature.h> + +digital_descrambler_bb_sptr +digital_make_descrambler_bb(int mask, int seed, int len) +{ + return gnuradio::get_initial_sptr(new digital_descrambler_bb(mask, seed, len)); +} + +digital_descrambler_bb::digital_descrambler_bb(int mask, int seed, int len) + : gr_sync_block("descrambler_bb", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (unsigned char))), + d_lfsr(mask, seed, len) +{ +} + +int +digital_descrambler_bb::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + for (int i = 0; i < noutput_items; i++) + out[i] = d_lfsr.next_bit_descramble(in[i]); + + return noutput_items; +} diff --git a/gr-digital/lib/digital_diff_decoder_bb.cc b/gr-digital/lib/digital_diff_decoder_bb.cc new file mode 100644 index 000000000..7b8e8726a --- /dev/null +++ b/gr-digital/lib/digital_diff_decoder_bb.cc @@ -0,0 +1,61 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_diff_decoder_bb.h> +#include <gr_io_signature.h> + +digital_diff_decoder_bb_sptr +digital_make_diff_decoder_bb (unsigned int modulus) +{ + return gnuradio::get_initial_sptr(new digital_diff_decoder_bb(modulus)); +} + +digital_diff_decoder_bb::digital_diff_decoder_bb (unsigned int modulus) + : gr_sync_block ("diff_decoder_bb", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (unsigned char))), + d_modulus(modulus) +{ + set_history(2); // need to look at two inputs +} + +int +digital_diff_decoder_bb::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + in += 1; // ensure that in[-1] is valid + + unsigned modulus = d_modulus; + + for (int i = 0; i < noutput_items; i++) { + out[i] = (in[i] - in[i-1]) % modulus; + } + + return noutput_items; +} diff --git a/gr-digital/lib/digital_diff_encoder_bb.cc b/gr-digital/lib/digital_diff_encoder_bb.cc new file mode 100644 index 000000000..bfbaba98f --- /dev/null +++ b/gr-digital/lib/digital_diff_encoder_bb.cc @@ -0,0 +1,62 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_diff_encoder_bb.h> +#include <gr_io_signature.h> + +digital_diff_encoder_bb_sptr +digital_make_diff_encoder_bb (unsigned int modulus) +{ + return gnuradio::get_initial_sptr(new digital_diff_encoder_bb(modulus)); +} + +digital_diff_encoder_bb::digital_diff_encoder_bb (unsigned int modulus) + : gr_sync_block ("diff_encoder_bb", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (unsigned char))), + d_last_out(0), d_modulus(modulus) +{ +} + +int +digital_diff_encoder_bb::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + unsigned last_out = d_last_out; + unsigned modulus = d_modulus; + + for (int i = 0; i < noutput_items; i++) { + out[i] = (in[i] + last_out) % modulus; + last_out = out[i]; + } + + d_last_out = last_out; + return noutput_items; +} diff --git a/gr-digital/lib/digital_diff_phasor_cc.cc b/gr-digital/lib/digital_diff_phasor_cc.cc new file mode 100644 index 000000000..8313a4de8 --- /dev/null +++ b/gr-digital/lib/digital_diff_phasor_cc.cc @@ -0,0 +1,61 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_diff_phasor_cc.h> +#include <gr_io_signature.h> + +digital_diff_phasor_cc_sptr +digital_make_diff_phasor_cc () +{ + return gnuradio::get_initial_sptr(new digital_diff_phasor_cc()); +} + +digital_diff_phasor_cc::digital_diff_phasor_cc () + : gr_sync_block ("diff_phasor_cc", + gr_make_io_signature (1, 1, sizeof (gr_complex)), + gr_make_io_signature (1, 1, sizeof (gr_complex))) +{ + set_history(2); +} + + +digital_diff_phasor_cc::~digital_diff_phasor_cc(){} + +int +digital_diff_phasor_cc::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + gr_complex const *in = (const gr_complex *) input_items[0]; + gr_complex *out = (gr_complex *) output_items[0]; + in += 1; // ensure that i - 1 is valid. + + for(int i = 0; i < noutput_items; i++) { + out[i] = in[i] * conj(in[i-1]); + } + + return noutput_items; +} diff --git a/gr-digital/lib/digital_framer_sink_1.cc b/gr-digital/lib/digital_framer_sink_1.cc new file mode 100644 index 000000000..ba1c5bd50 --- /dev/null +++ b/gr-digital/lib/digital_framer_sink_1.cc @@ -0,0 +1,192 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2006,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_framer_sink_1.h> +#include <gr_io_signature.h> +#include <cstdio> +#include <stdexcept> +#include <string.h> + +#define VERBOSE 0 + +inline void +digital_framer_sink_1::enter_search() +{ + if (VERBOSE) + fprintf(stderr, "@ enter_search\n"); + + d_state = STATE_SYNC_SEARCH; +} + +inline void +digital_framer_sink_1::enter_have_sync() +{ + if (VERBOSE) + fprintf(stderr, "@ enter_have_sync\n"); + + d_state = STATE_HAVE_SYNC; + d_header = 0; + d_headerbitlen_cnt = 0; +} + +inline void +digital_framer_sink_1::enter_have_header(int payload_len, + int whitener_offset) +{ + if (VERBOSE) + fprintf(stderr, "@ enter_have_header (payload_len = %d) (offset = %d)\n", + payload_len, whitener_offset); + + d_state = STATE_HAVE_HEADER; + d_packetlen = payload_len; + d_packet_whitener_offset = whitener_offset; + d_packetlen_cnt = 0; + d_packet_byte = 0; + d_packet_byte_index = 0; +} + +digital_framer_sink_1_sptr +digital_make_framer_sink_1(gr_msg_queue_sptr target_queue) +{ + return gnuradio::get_initial_sptr(new digital_framer_sink_1(target_queue)); +} + + +digital_framer_sink_1::digital_framer_sink_1(gr_msg_queue_sptr target_queue) + : gr_sync_block ("framer_sink_1", + gr_make_io_signature (1, 1, sizeof(unsigned char)), + gr_make_io_signature (0, 0, 0)), + d_target_queue(target_queue) +{ + enter_search(); +} + +digital_framer_sink_1::~digital_framer_sink_1 () +{ +} + +int +digital_framer_sink_1::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + int count=0; + + if (VERBOSE) + fprintf(stderr,">>> Entering state machine\n"); + + while (count < noutput_items){ + switch(d_state) { + + case STATE_SYNC_SEARCH: // Look for flag indicating beginning of pkt + if (VERBOSE) + fprintf(stderr,"SYNC Search, noutput=%d\n", noutput_items); + + while (count < noutput_items) { + if (in[count] & 0x2){ // Found it, set up for header decode + enter_have_sync(); + break; + } + count++; + } + break; + + case STATE_HAVE_SYNC: + if (VERBOSE) + fprintf(stderr,"Header Search bitcnt=%d, header=0x%08x\n", + d_headerbitlen_cnt, d_header); + + while (count < noutput_items) { // Shift bits one at a time into header + d_header = (d_header << 1) | (in[count++] & 0x1); + if (++d_headerbitlen_cnt == HEADERBITLEN) { + + if (VERBOSE) + fprintf(stderr, "got header: 0x%08x\n", d_header); + + // we have a full header, check to see if it has been received properly + if (header_ok()){ + int payload_len; + int whitener_offset; + header_payload(&payload_len, &whitener_offset); + enter_have_header(payload_len, whitener_offset); + + if (d_packetlen == 0){ // check for zero-length payload + // build a zero-length message + // NOTE: passing header field as arg1 is not scalable + gr_message_sptr msg = + gr_make_message(0, d_packet_whitener_offset, 0, 0); + + d_target_queue->insert_tail(msg); // send it + msg.reset(); // free it up + + enter_search(); + } + } + else + enter_search(); // bad header + break; // we're in a new state + } + } + break; + + case STATE_HAVE_HEADER: + if (VERBOSE) + fprintf(stderr,"Packet Build\n"); + + while (count < noutput_items) { // shift bits into bytes of packet one at a time + d_packet_byte = (d_packet_byte << 1) | (in[count++] & 0x1); + if (d_packet_byte_index++ == 7) { // byte is full so move to next byte + d_packet[d_packetlen_cnt++] = d_packet_byte; + d_packet_byte_index = 0; + + if (d_packetlen_cnt == d_packetlen){ // packet is filled + + // build a message + // NOTE: passing header field as arg1 is not scalable + gr_message_sptr msg = + gr_make_message(0, d_packet_whitener_offset, 0, d_packetlen_cnt); + memcpy(msg->msg(), d_packet, d_packetlen_cnt); + + d_target_queue->insert_tail(msg); // send it + msg.reset(); // free it up + + enter_search(); + break; + } + } + } + break; + + default: + assert(0); + + } // switch + + } // while + + return noutput_items; +} diff --git a/gr-digital/lib/digital_glfsr_source_b.cc b/gr-digital/lib/digital_glfsr_source_b.cc new file mode 100644 index 000000000..e557e475a --- /dev/null +++ b/gr-digital/lib/digital_glfsr_source_b.cc @@ -0,0 +1,86 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <digital_glfsr_source_b.h> +#include <gri_glfsr.h> +#include <gr_io_signature.h> +#include <stdexcept> + +digital_glfsr_source_b_sptr +digital_make_glfsr_source_b(int degree, bool repeat, int mask, int seed) +{ + return gnuradio::get_initial_sptr(new digital_glfsr_source_b + (degree, repeat, mask, seed)); +} + +digital_glfsr_source_b::digital_glfsr_source_b(int degree, bool repeat, + int mask, int seed) + : gr_sync_block ("glfsr_source_b", + gr_make_io_signature (0, 0, 0), + gr_make_io_signature (1, 1, sizeof(unsigned char))), + d_repeat(repeat), + d_index(0) +{ + if (degree < 1 || degree > 32) + throw std::runtime_error("digital_glfsr_source_b: degree must be between 1 and 32 inclusive"); + d_length = (unsigned int)((1ULL << degree)-1); + + if (mask == 0) + mask = gri_glfsr::glfsr_mask(degree); + d_glfsr = new gri_glfsr(mask, seed); +} + +digital_glfsr_source_b::~digital_glfsr_source_b() +{ + delete d_glfsr; +} + +int +digital_glfsr_source_b::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + char *out = (char *) output_items[0]; + if ((d_index > d_length) && d_repeat == false) + return -1; /* once through the sequence */ + + int i; + for (i = 0; i < noutput_items; i++) { + out[i] = d_glfsr->next_bit(); + d_index++; + if (d_index > d_length && d_repeat == false) + break; + } + + return i; +} + +int +digital_glfsr_source_b::mask() const +{ + return d_glfsr->mask(); +} diff --git a/gr-digital/lib/digital_glfsr_source_f.cc b/gr-digital/lib/digital_glfsr_source_f.cc new file mode 100644 index 000000000..5a7736ef8 --- /dev/null +++ b/gr-digital/lib/digital_glfsr_source_f.cc @@ -0,0 +1,86 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <digital_glfsr_source_f.h> +#include <gri_glfsr.h> +#include <gr_io_signature.h> +#include <stdexcept> + +digital_glfsr_source_f_sptr +digital_make_glfsr_source_f(int degree, bool repeat, int mask, int seed) +{ + return gnuradio::get_initial_sptr(new digital_glfsr_source_f + (degree, repeat, mask, seed)); +} + +digital_glfsr_source_f::digital_glfsr_source_f(int degree, bool repeat, + int mask, int seed) + : gr_sync_block ("glfsr_source_f", + gr_make_io_signature (0, 0, 0), + gr_make_io_signature (1, 1, sizeof(float))), + d_repeat(repeat), + d_index(0) +{ + if (degree < 1 || degree > 32) + throw std::runtime_error("digital_glfsr_source_f: degree must be between 1 and 32 inclusive"); + d_length = (unsigned int)((1ULL << degree)-1); + + if (mask == 0) + mask = gri_glfsr::glfsr_mask(degree); + d_glfsr = new gri_glfsr(mask, seed); +} + +digital_glfsr_source_f::~digital_glfsr_source_f() +{ + delete d_glfsr; +} + +int +digital_glfsr_source_f::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + float *out = (float *) output_items[0]; + if ((d_index > d_length) && d_repeat == false) + return -1; /* once through the sequence */ + + int i; + for (i = 0; i < noutput_items; i++) { + out[i] = (float)d_glfsr->next_bit()*2.0-1.0; + d_index++; + if (d_index > d_length && d_repeat == false) + break; + } + + return i; +} + +int +digital_glfsr_source_f::mask() const +{ + return d_glfsr->mask(); +} diff --git a/gr-digital/lib/digital_impl_glfsr.cc b/gr-digital/lib/digital_impl_glfsr.cc new file mode 100644 index 000000000..342980e53 --- /dev/null +++ b/gr-digital/lib/digital_impl_glfsr.cc @@ -0,0 +1,67 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#include <digital_impl_glfsr.h> +#include <stdexcept> + +static int s_polynomial_masks[] = { + 0x00000000, + 0x00000001, // x^1 + 1 + 0x00000003, // x^2 + x^1 + 1 + 0x00000005, // x^3 + x^1 + 1 + 0x00000009, // x^4 + x^1 + 1 + 0x00000012, // x^5 + x^2 + 1 + 0x00000021, // x^6 + x^1 + 1 + 0x00000041, // x^7 + x^1 + 1 + 0x0000008E, // x^8 + x^4 + x^3 + x^2 + 1 + 0x00000108, // x^9 + x^4 + 1 + 0x00000204, // x^10 + x^4 + 1 + 0x00000402, // x^11 + x^2 + 1 + 0x00000829, // x^12 + x^6 + x^4 + x^1 + 1 + 0x0000100D, // x^13 + x^4 + x^3 + x^1 + 1 + 0x00002015, // x^14 + x^5 + x^3 + x^1 + 1 + 0x00004001, // x^15 + x^1 + 1 + 0x00008016, // x^16 + x^5 + x^3 + x^2 + 1 + 0x00010004, // x^17 + x^3 + 1 + 0x00020013, // x^18 + x^5 + x^2 + x^1 + 1 + 0x00040013, // x^19 + x^5 + x^2 + x^1 + 1 + 0x00080004, // x^20 + x^3 + 1 + 0x00100002, // x^21 + x^2 + 1 + 0x00200001, // x^22 + x^1 + 1 + 0x00400010, // x^23 + x^5 + 1 + 0x0080000D, // x^24 + x^4 + x^3 + x^1 + 1 + 0x01000004, // x^25 + x^3 + 1 + 0x02000023, // x^26 + x^6 + x^2 + x^1 + 1 + 0x04000013, // x^27 + x^5 + x^2 + x^1 + 1 + 0x08000004, // x^28 + x^3 + 1 + 0x10000002, // x^29 + x^2 + 1 + 0x20000029, // x^30 + x^4 + x^1 + 1 + 0x40000004, // x^31 + x^3 + 1 + 0x80000057 // x^32 + x^7 + x^5 + x^3 + x^2 + x^1 + 1 +}; + +int digital_impl_glfsr::glfsr_mask(int degree) +{ + if (degree < 1 || degree > 32) + throw std::runtime_error("digital_impl_glfsr::glfsr_mask(): degree must be between 1 and 32 inclusive"); + return s_polynomial_masks[degree]; +} diff --git a/gr-digital/lib/digital_map_bb.cc b/gr-digital/lib/digital_map_bb.cc new file mode 100644 index 000000000..1d8444a40 --- /dev/null +++ b/gr-digital/lib/digital_map_bb.cc @@ -0,0 +1,61 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2007,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_map_bb.h> +#include <gr_io_signature.h> + +digital_map_bb_sptr +digital_make_map_bb (const std::vector<int> &map) +{ + return gnuradio::get_initial_sptr(new digital_map_bb (map)); +} + +digital_map_bb::digital_map_bb (const std::vector<int> &map) + : gr_sync_block ("map_bb", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (unsigned char))) +{ + for (int i = 0; i < 0x100; i++) + d_map[i] = i; + + unsigned int size = std::min((size_t) 0x100, map.size()); + for (unsigned int i = 0; i < size; i++) + d_map[i] = map[i]; +} + +int +digital_map_bb::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + for (int i = 0; i < noutput_items; i++) + out[i] = d_map[in[i]]; + + return noutput_items; +} diff --git a/gr-digital/lib/digital_packet_sink.cc b/gr-digital/lib/digital_packet_sink.cc new file mode 100644 index 000000000..92521376f --- /dev/null +++ b/gr-digital/lib/digital_packet_sink.cc @@ -0,0 +1,207 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_packet_sink.h> +#include <gr_io_signature.h> +#include <cstdio> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <stdexcept> +#include <gr_count_bits.h> +#include <string.h> + +#define VERBOSE 0 + +static const int DEFAULT_THRESHOLD = 12; // detect access code with up to DEFAULT_THRESHOLD bits wrong + +inline void +digital_packet_sink::enter_search() +{ + if (VERBOSE) + fprintf(stderr, "@ enter_search\n"); + + d_state = STATE_SYNC_SEARCH; + d_shift_reg = 0; +} + +inline void +digital_packet_sink::enter_have_sync() +{ + if (VERBOSE) + fprintf(stderr, "@ enter_have_sync\n"); + + d_state = STATE_HAVE_SYNC; + d_header = 0; + d_headerbitlen_cnt = 0; +} + +inline void +digital_packet_sink::enter_have_header(int payload_len) +{ + if (VERBOSE) + fprintf(stderr, "@ enter_have_header (payload_len = %d)\n", payload_len); + + d_state = STATE_HAVE_HEADER; + d_packetlen = payload_len; + d_packetlen_cnt = 0; + d_packet_byte = 0; + d_packet_byte_index = 0; +} + +digital_packet_sink_sptr +digital_make_packet_sink (const std::vector<unsigned char>& sync_vector, + gr_msg_queue_sptr target_queue, int threshold) +{ + return gnuradio::get_initial_sptr(new digital_packet_sink (sync_vector, target_queue, threshold)); +} + + +digital_packet_sink::digital_packet_sink (const std::vector<unsigned char>& sync_vector, + gr_msg_queue_sptr target_queue, int threshold) + : gr_sync_block ("packet_sink", + gr_make_io_signature (1, 1, sizeof(float)), + gr_make_io_signature (0, 0, 0)), + d_target_queue(target_queue), d_threshold(threshold == -1 ? DEFAULT_THRESHOLD : threshold) +{ + d_sync_vector = 0; + for(int i=0;i<8;i++){ + d_sync_vector <<= 8; + d_sync_vector |= sync_vector[i]; + } + + enter_search(); +} + +digital_packet_sink::~digital_packet_sink () +{ +} + +int +digital_packet_sink::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + float *inbuf = (float *) input_items[0]; + int count=0; + + if (VERBOSE) + fprintf(stderr,">>> Entering state machine\n"),fflush(stderr); + + while (count<noutput_items) { + switch(d_state) { + + case STATE_SYNC_SEARCH: // Look for sync vector + if (VERBOSE) + fprintf(stderr,"SYNC Search, noutput=%d\n",noutput_items),fflush(stderr); + + while (count < noutput_items) { + if(slice(inbuf[count++])) + d_shift_reg = (d_shift_reg << 1) | 1; + else + d_shift_reg = d_shift_reg << 1; + + // Compute popcnt of putative sync vector + if(gr_count_bits64 (d_shift_reg ^ d_sync_vector) <= d_threshold) { + // Found it, set up for header decode + enter_have_sync(); + break; + } + } + break; + + case STATE_HAVE_SYNC: + if (VERBOSE) + fprintf(stderr,"Header Search bitcnt=%d, header=0x%08x\n", d_headerbitlen_cnt, d_header), + fflush(stderr); + + while (count < noutput_items) { // Shift bits one at a time into header + if(slice(inbuf[count++])) + d_header = (d_header << 1) | 1; + else + d_header = d_header << 1; + + if (++d_headerbitlen_cnt == HEADERBITLEN) { + + if (VERBOSE) + fprintf(stderr, "got header: 0x%08x\n", d_header); + + // we have a full header, check to see if it has been received properly + if (header_ok()){ + int payload_len = header_payload_len(); + if (payload_len <= MAX_PKT_LEN) // reasonable? + enter_have_header(payload_len); // yes. + else + enter_search(); // no. + } + else + enter_search(); // no. + break; // we're in a new state + } + } + break; + + case STATE_HAVE_HEADER: + if (VERBOSE) + fprintf(stderr,"Packet Build\n"),fflush(stderr); + + while (count < noutput_items) { // shift bits into bytes of packet one at a time + if(slice(inbuf[count++])) + d_packet_byte = (d_packet_byte << 1) | 1; + else + d_packet_byte = d_packet_byte << 1; + + if (d_packet_byte_index++ == 7) { // byte is full so move to next byte + d_packet[d_packetlen_cnt++] = d_packet_byte; + d_packet_byte_index = 0; + + if (d_packetlen_cnt == d_packetlen){ // packet is filled + + // build a message + gr_message_sptr msg = gr_make_message(0, 0, 0, d_packetlen_cnt); + memcpy(msg->msg(), d_packet, d_packetlen_cnt); + + d_target_queue->insert_tail(msg); // send it + msg.reset(); // free it up + + enter_search(); + break; + } + } + } + break; + + default: + assert(0); + + } // switch + + } // while + + return noutput_items; +} + diff --git a/gr-digital/lib/digital_pfb_clock_sync_ccf.cc b/gr-digital/lib/digital_pfb_clock_sync_ccf.cc new file mode 100644 index 000000000..1a2d5970b --- /dev/null +++ b/gr-digital/lib/digital_pfb_clock_sync_ccf.cc @@ -0,0 +1,440 @@ +/* -*- c++ -*- */ +/* + * Copyright 2009-2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <cstdio> +#include <cmath> + +#include <digital_pfb_clock_sync_ccf.h> +#include <gr_fir_ccf.h> +#include <gr_fir_util.h> +#include <gr_io_signature.h> +#include <gr_math.h> + +digital_pfb_clock_sync_ccf_sptr +digital_make_pfb_clock_sync_ccf(double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps) +{ + return gnuradio::get_initial_sptr(new digital_pfb_clock_sync_ccf + (sps, loop_bw, taps, + filter_size, + init_phase, + max_rate_deviation, + osps)); +} + +static int ios[] = {sizeof(gr_complex), sizeof(float), sizeof(float), sizeof(float)}; +static std::vector<int> iosig(ios, ios+sizeof(ios)/sizeof(int)); +digital_pfb_clock_sync_ccf::digital_pfb_clock_sync_ccf (double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps) + : gr_block ("pfb_clock_sync_ccf", + gr_make_io_signature (1, 1, sizeof(gr_complex)), + gr_make_io_signaturev (1, 4, iosig)), + d_updated (false), d_nfilters(filter_size), + d_max_dev(max_rate_deviation), + d_osps(osps), d_error(0), d_out_idx(0) +{ + d_nfilters = filter_size; + d_sps = floor(sps); + + // Set the damping factor for a critically damped system + d_damping = sqrtf(2.0f)/2.0f; + + // Set the bandwidth, which will then call update_gains() + set_loop_bandwidth(loop_bw); + + // Store the last filter between calls to work + // The accumulator keeps track of overflow to increment the stride correctly. + // set it here to the fractional difference based on the initial phaes + d_k = init_phase; + d_rate = (sps-floor(sps))*(double)d_nfilters; + d_rate_i = (int)floor(d_rate); + d_rate_f = d_rate - (float)d_rate_i; + d_filtnum = (int)floor(d_k); + + d_filters = std::vector<gr_fir_ccf*>(d_nfilters); + d_diff_filters = std::vector<gr_fir_ccf*>(d_nfilters); + + // Create an FIR filter for each channel and zero out the taps + std::vector<float> vtaps(0, d_nfilters); + for(int i = 0; i < d_nfilters; i++) { + d_filters[i] = gr_fir_util::create_gr_fir_ccf(vtaps); + d_diff_filters[i] = gr_fir_util::create_gr_fir_ccf(vtaps); + } + + // Now, actually set the filters' taps + std::vector<float> dtaps; + create_diff_taps(taps, dtaps); + set_taps(taps, d_taps, d_filters); + set_taps(dtaps, d_dtaps, d_diff_filters); +} + +digital_pfb_clock_sync_ccf::~digital_pfb_clock_sync_ccf () +{ + for(int i = 0; i < d_nfilters; i++) { + delete d_filters[i]; + delete d_diff_filters[i]; + } +} + +bool +digital_pfb_clock_sync_ccf::check_topology(int ninputs, int noutputs) +{ + return noutputs == 1 || noutputs == 4; +} + + + +/******************************************************************* + SET FUNCTIONS +*******************************************************************/ + + +void +digital_pfb_clock_sync_ccf::set_loop_bandwidth(float bw) +{ + if(bw < 0) { + throw std::out_of_range ("digital_pfb_clock_sync_cc: invalid bandwidth. Must be >= 0."); + } + + d_loop_bw = bw; + update_gains(); +} + +void +digital_pfb_clock_sync_ccf::set_damping_factor(float df) +{ + if(df < 0 || df > 1.0) { + throw std::out_of_range ("digital_pfb_clock_sync_cc: invalid damping factor. Must be in [0,1]."); + } + + d_damping = df; + update_gains(); +} + +void +digital_pfb_clock_sync_ccf::set_alpha(float alpha) +{ + if(alpha < 0 || alpha > 1.0) { + throw std::out_of_range ("digital_pfb_clock_sync_cc: invalid alpha. Must be in [0,1]."); + } + d_alpha = alpha; +} + +void +digital_pfb_clock_sync_ccf::set_beta(float beta) +{ + if(beta < 0 || beta > 1.0) { + throw std::out_of_range ("digital_pfb_clock_sync_cc: invalid beta. Must be in [0,1]."); + } + d_beta = beta; +} + +/******************************************************************* + GET FUNCTIONS +*******************************************************************/ + + +float +digital_pfb_clock_sync_ccf::get_loop_bandwidth() const +{ + return d_loop_bw; +} + +float +digital_pfb_clock_sync_ccf::get_damping_factor() const +{ + return d_damping; +} + +float +digital_pfb_clock_sync_ccf::get_alpha() const +{ + return d_alpha; +} + +float +digital_pfb_clock_sync_ccf::get_beta() const +{ + return d_beta; +} + +float +digital_pfb_clock_sync_ccf::get_clock_rate() const +{ + return d_rate_f; +} + +/******************************************************************* +*******************************************************************/ + +void +digital_pfb_clock_sync_ccf::update_gains() +{ + float denom = (1.0 + 2.0*d_damping*d_loop_bw + d_loop_bw*d_loop_bw); + d_alpha = (4*d_damping*d_loop_bw) / denom; + d_beta = (4*d_loop_bw*d_loop_bw) / denom; +} + + +void +digital_pfb_clock_sync_ccf::set_taps (const std::vector<float> &newtaps, + std::vector< std::vector<float> > &ourtaps, + std::vector<gr_fir_ccf*> &ourfilter) +{ + int i,j; + + unsigned int ntaps = newtaps.size(); + d_taps_per_filter = (unsigned int)ceil((double)ntaps/(double)d_nfilters); + + // Create d_numchan vectors to store each channel's taps + ourtaps.resize(d_nfilters); + + // Make a vector of the taps plus fill it out with 0's to fill + // each polyphase filter with exactly d_taps_per_filter + std::vector<float> tmp_taps; + tmp_taps = newtaps; + while((float)(tmp_taps.size()) < d_nfilters*d_taps_per_filter) { + tmp_taps.push_back(0.0); + } + + // Partition the filter + for(i = 0; i < d_nfilters; i++) { + // Each channel uses all d_taps_per_filter with 0's if not enough taps to fill out + ourtaps[i] = std::vector<float>(d_taps_per_filter, 0); + for(j = 0; j < d_taps_per_filter; j++) { + ourtaps[i][j] = tmp_taps[i + j*d_nfilters]; + } + + // Build a filter for each channel and add it's taps to it + ourfilter[i]->set_taps(ourtaps[i]); + } + + // Set the history to ensure enough input items for each filter + set_history (d_taps_per_filter + d_sps); + + // Make sure there is enough output space for d_osps outputs/input. + set_output_multiple(d_osps); + + d_updated = true; +} + +void +digital_pfb_clock_sync_ccf::create_diff_taps(const std::vector<float> &newtaps, + std::vector<float> &difftaps) +{ + std::vector<float> diff_filter(3); + diff_filter[0] = -1; + diff_filter[1] = 0; + diff_filter[2] = 1; + + float pwr = 0; + difftaps.push_back(0); + for(unsigned int i = 0; i < newtaps.size()-2; i++) { + float tap = 0; + for(int j = 0; j < 3; j++) { + tap += diff_filter[j]*newtaps[i+j]; + pwr += fabsf(tap); + } + difftaps.push_back(tap); + } + difftaps.push_back(0); + + for(unsigned int i = 0; i < difftaps.size(); i++) { + difftaps[i] *= pwr; + } +} + +std::string +digital_pfb_clock_sync_ccf::get_taps_as_string() +{ + int i, j; + std::stringstream str; + str.precision(4); + str.setf(std::ios::scientific); + + str << "[ "; + for(i = 0; i < d_nfilters; i++) { + str << "[" << d_taps[i][0] << ", "; + for(j = 1; j < d_taps_per_filter-1; j++) { + str << d_taps[i][j] << ", "; + } + str << d_taps[i][j] << "],"; + } + str << " ]" << std::endl; + + return str.str(); +} + +std::string +digital_pfb_clock_sync_ccf::get_diff_taps_as_string() +{ + int i, j; + std::stringstream str; + str.precision(4); + str.setf(std::ios::scientific); + + str << "[ "; + for(i = 0; i < d_nfilters; i++) { + str << "[" << d_dtaps[i][0] << ", "; + for(j = 1; j < d_taps_per_filter-1; j++) { + str << d_dtaps[i][j] << ", "; + } + str << d_dtaps[i][j] << "],"; + } + str << " ]" << std::endl; + + return str.str(); +} + +std::vector< std::vector<float> > +digital_pfb_clock_sync_ccf::get_taps() +{ + return d_taps; +} + +std::vector< std::vector<float> > +digital_pfb_clock_sync_ccf::get_diff_taps() +{ + return d_dtaps; +} + +std::vector<float> +digital_pfb_clock_sync_ccf::get_channel_taps(int channel) +{ + std::vector<float> taps; + for(int i = 0; i < d_taps_per_filter; i++) { + taps.push_back(d_taps[channel][i]); + } + return taps; +} + +std::vector<float> +digital_pfb_clock_sync_ccf::get_diff_channel_taps(int channel) +{ + std::vector<float> taps; + for(int i = 0; i < d_taps_per_filter; i++) { + taps.push_back(d_dtaps[channel][i]); + } + return taps; +} + + +int +digital_pfb_clock_sync_ccf::general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + gr_complex *in = (gr_complex *) input_items[0]; + gr_complex *out = (gr_complex *) output_items[0]; + + float *err = NULL, *outrate = NULL, *outk = NULL; + if(output_items.size() == 4) { + err = (float *) output_items[1]; + outrate = (float*)output_items[2]; + outk = (float*)output_items[3]; + } + + if (d_updated) { + d_updated = false; + return 0; // history requirements may have changed. + } + + // We need this many to process one output + int nrequired = ninput_items[0] - d_taps_per_filter - d_osps; + + int i = 0, count = 0; + float error_r, error_i; + + // produce output as long as we can and there are enough input samples + while((i < noutput_items) && (count < nrequired)) { + while(d_out_idx < d_osps) { + d_filtnum = (int)floor(d_k); + + // Keep the current filter number in [0, d_nfilters] + // If we've run beyond the last filter, wrap around and go to next sample + // If we've go below 0, wrap around and go to previous sample + while(d_filtnum >= d_nfilters) { + d_k -= d_nfilters; + d_filtnum -= d_nfilters; + count += 1; + } + while(d_filtnum < 0) { + d_k += d_nfilters; + d_filtnum += d_nfilters; + count -= 1; + } + + out[i+d_out_idx] = d_filters[d_filtnum]->filter(&in[count+d_out_idx]); + d_k = d_k + d_rate_i + d_rate_f; // update phase + d_out_idx++; + + if(output_items.size() == 4) { + err[i] = d_error; + outrate[i] = d_rate_f; + outk[i] = d_k; + } + + // We've run out of output items we can create; return now. + if(i+d_out_idx >= noutput_items) { + consume_each(count); + return i; + } + } + + // reset here; if we didn't complete a full osps samples last time, + // the early return would take care of it. + d_out_idx = 0; + + // Update the phase and rate estimates for this symbol + gr_complex diff = d_diff_filters[d_filtnum]->filter(&in[count]); + error_r = out[i].real() * diff.real(); + error_i = out[i].imag() * diff.imag(); + d_error = (error_i + error_r) / 2.0; // average error from I&Q channel + + // Run the control loop to update the current phase (k) and + // tracking rate estimates based on the error value + d_rate_f = d_rate_f + d_beta*d_error; + d_k = d_k + d_alpha*d_error; + + // Keep our rate within a good range + d_rate_f = gr_branchless_clip(d_rate_f, d_max_dev); + + i+=d_osps; + count += (int)floor(d_sps); + } + + consume_each(count); + return i; +} diff --git a/gr-digital/lib/digital_pfb_clock_sync_fff.cc b/gr-digital/lib/digital_pfb_clock_sync_fff.cc new file mode 100644 index 000000000..0e7d2a52d --- /dev/null +++ b/gr-digital/lib/digital_pfb_clock_sync_fff.cc @@ -0,0 +1,434 @@ +/* -*- c++ -*- */ +/* + * Copyright 2009,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <cstdio> +#include <cmath> + +#include <digital_pfb_clock_sync_fff.h> +#include <gr_fir_fff.h> +#include <gr_fir_util.h> +#include <gr_io_signature.h> +#include <gr_math.h> + +digital_pfb_clock_sync_fff_sptr +digital_make_pfb_clock_sync_fff(double sps, float gain, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps) +{ + return gnuradio::get_initial_sptr(new digital_pfb_clock_sync_fff + (sps, gain, taps, + filter_size, + init_phase, + max_rate_deviation, + osps)); +} + +static int ios[] = {sizeof(float), sizeof(float), sizeof(float), sizeof(float)}; +static std::vector<int> iosig(ios, ios+sizeof(ios)/sizeof(int)); +digital_pfb_clock_sync_fff::digital_pfb_clock_sync_fff (double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size, + float init_phase, + float max_rate_deviation, + int osps) + : gr_block ("pfb_clock_sync_fff", + gr_make_io_signature (1, 1, sizeof(float)), + gr_make_io_signaturev (1, 4, iosig)), + d_updated (false), d_nfilters(filter_size), + d_max_dev(max_rate_deviation), + d_osps(osps), d_error(0), d_out_idx(0) +{ + d_nfilters = filter_size; + d_sps = floor(sps); + + // Set the damping factor for a critically damped system + d_damping = sqrtf(2.0f)/2.0f; + + // Set the bandwidth, which will then call update_gains() + set_loop_bandwidth(loop_bw); + + // Store the last filter between calls to work + // The accumulator keeps track of overflow to increment the stride correctly. + // set it here to the fractional difference based on the initial phaes + d_k = init_phase; + d_rate = (sps-floor(sps))*(double)d_nfilters; + d_rate_i = (int)floor(d_rate); + d_rate_f = d_rate - (float)d_rate_i; + d_filtnum = (int)floor(d_k); + + d_filters = std::vector<gr_fir_fff*>(d_nfilters); + d_diff_filters = std::vector<gr_fir_fff*>(d_nfilters); + + // Create an FIR filter for each channel and zero out the taps + std::vector<float> vtaps(0, d_nfilters); + for(int i = 0; i < d_nfilters; i++) { + d_filters[i] = gr_fir_util::create_gr_fir_fff(vtaps); + d_diff_filters[i] = gr_fir_util::create_gr_fir_fff(vtaps); + } + + // Now, actually set the filters' taps + std::vector<float> dtaps; + create_diff_taps(taps, dtaps); + set_taps(taps, d_taps, d_filters); + set_taps(dtaps, d_dtaps, d_diff_filters); +} + +digital_pfb_clock_sync_fff::~digital_pfb_clock_sync_fff () +{ + for(int i = 0; i < d_nfilters; i++) { + delete d_filters[i]; + delete d_diff_filters[i]; + } +} + +bool +digital_pfb_clock_sync_fff::check_topology(int ninputs, int noutputs) +{ + return noutputs == 1 || noutputs == 4; +} + +/******************************************************************* + SET FUNCTIONS +*******************************************************************/ + + +void +digital_pfb_clock_sync_fff::set_loop_bandwidth(float bw) +{ + if(bw < 0) { + throw std::out_of_range ("digital_pfb_clock_sync_fff: invalid bandwidth. Must be >= 0."); + } + + d_loop_bw = bw; + update_gains(); +} + +void +digital_pfb_clock_sync_fff::set_damping_factor(float df) +{ + if(df < 0 || df > 1.0) { + throw std::out_of_range ("digital_pfb_clock_sync_fff: invalid damping factor. Must be in [0,1]."); + } + + d_damping = df; + update_gains(); +} + +void +digital_pfb_clock_sync_fff::set_alpha(float alpha) +{ + if(alpha < 0 || alpha > 1.0) { + throw std::out_of_range ("digital_pfb_clock_sync_fff: invalid alpha. Must be in [0,1]."); + } + d_alpha = alpha; +} + +void +digital_pfb_clock_sync_fff::set_beta(float beta) +{ + if(beta < 0 || beta > 1.0) { + throw std::out_of_range ("digital_pfb_clock_sync_fff: invalid beta. Must be in [0,1]."); + } + d_beta = beta; +} + +/******************************************************************* + GET FUNCTIONS +*******************************************************************/ + + +float +digital_pfb_clock_sync_fff::get_loop_bandwidth() const +{ + return d_loop_bw; +} + +float +digital_pfb_clock_sync_fff::get_damping_factor() const +{ + return d_damping; +} + +float +digital_pfb_clock_sync_fff::get_alpha() const +{ + return d_alpha; +} + +float +digital_pfb_clock_sync_fff::get_beta() const +{ + return d_beta; +} + +float +digital_pfb_clock_sync_fff::get_clock_rate() const +{ + return d_rate_f; +} + +/******************************************************************* +*******************************************************************/ + +void +digital_pfb_clock_sync_fff::update_gains() +{ + float denom = (1.0 + 2.0*d_damping*d_loop_bw + d_loop_bw*d_loop_bw); + d_alpha = (4*d_damping*d_loop_bw) / denom; + d_beta = (4*d_loop_bw*d_loop_bw) / denom; +} + + +void +digital_pfb_clock_sync_fff::set_taps (const std::vector<float> &newtaps, + std::vector< std::vector<float> > &ourtaps, + std::vector<gr_fir_fff*> &ourfilter) +{ + int i,j; + + unsigned int ntaps = newtaps.size(); + d_taps_per_filter = (unsigned int)ceil((double)ntaps/(double)d_nfilters); + + // Create d_numchan vectors to store each channel's taps + ourtaps.resize(d_nfilters); + + // Make a vector of the taps plus fill it out with 0's to fill + // each polyphase filter with exactly d_taps_per_filter + std::vector<float> tmp_taps; + tmp_taps = newtaps; + while((float)(tmp_taps.size()) < d_nfilters*d_taps_per_filter) { + tmp_taps.push_back(0.0); + } + + // Partition the filter + for(i = 0; i < d_nfilters; i++) { + // Each channel uses all d_taps_per_filter with 0's if not enough taps to fill out + ourtaps[i] = std::vector<float>(d_taps_per_filter, 0); + for(j = 0; j < d_taps_per_filter; j++) { + ourtaps[i][j] = tmp_taps[i + j*d_nfilters]; + } + + // Build a filter for each channel and add it's taps to it + ourfilter[i]->set_taps(ourtaps[i]); + } + + // Set the history to ensure enough input items for each filter + set_history (d_taps_per_filter + d_sps); + + // Make sure there is enough output space for d_osps outputs/input. + set_output_multiple(d_osps); + + d_updated = true; +} + +void +digital_pfb_clock_sync_fff::create_diff_taps(const std::vector<float> &newtaps, + std::vector<float> &difftaps) +{ + std::vector<float> diff_filter(3); + diff_filter[0] = -1; + diff_filter[1] = 0; + diff_filter[2] = 1; + + float pwr = 0; + difftaps.push_back(0); + for(unsigned int i = 0; i < newtaps.size()-2; i++) { + float tap = 0; + for(int j = 0; j < 3; j++) { + tap += diff_filter[j]*newtaps[i+j]; + pwr += fabsf(tap); + } + difftaps.push_back(tap); + } + difftaps.push_back(0); + + for(unsigned int i = 0; i < difftaps.size(); i++) { + difftaps[i] *= pwr; + } +} + +std::string +digital_pfb_clock_sync_fff::get_taps_as_string() +{ + int i, j; + std::stringstream str; + str.precision(4); + str.setf(std::ios::scientific); + + str << "[ "; + for(i = 0; i < d_nfilters; i++) { + str << "[" << d_taps[i][0] << ", "; + for(j = 1; j < d_taps_per_filter-1; j++) { + str << d_taps[i][j] << ", "; + } + str << d_taps[i][j] << "],"; + } + str << " ]" << std::endl; + + return str.str(); +} + +std::string +digital_pfb_clock_sync_fff::get_diff_taps_as_string() +{ + int i, j; + std::stringstream str; + str.precision(4); + str.setf(std::ios::scientific); + + str << "[ "; + for(i = 0; i < d_nfilters; i++) { + str << "[" << d_dtaps[i][0] << ", "; + for(j = 1; j < d_taps_per_filter-1; j++) { + str << d_dtaps[i][j] << ", "; + } + str << d_dtaps[i][j] << "],"; + } + str << " ]" << std::endl; + + return str.str(); +} + +std::vector< std::vector<float> > +digital_pfb_clock_sync_fff::get_taps() +{ + return d_taps; +} + +std::vector< std::vector<float> > +digital_pfb_clock_sync_fff::get_diff_taps() +{ + return d_dtaps; +} + +std::vector<float> +digital_pfb_clock_sync_fff::get_channel_taps(int channel) +{ + std::vector<float> taps; + for(int i = 0; i < d_taps_per_filter; i++) { + taps.push_back(d_taps[channel][i]); + } + return taps; +} + +std::vector<float> +digital_pfb_clock_sync_fff::get_diff_channel_taps(int channel) +{ + std::vector<float> taps; + for(int i = 0; i < d_taps_per_filter; i++) { + taps.push_back(d_dtaps[channel][i]); + } + return taps; +} + +int +digital_pfb_clock_sync_fff::general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + float *in = (float *) input_items[0]; + float *out = (float *) output_items[0]; + + float *err = NULL, *outrate = NULL, *outk = NULL; + if(output_items.size() == 4) { + err = (float *) output_items[1]; + outrate = (float*)output_items[2]; + outk = (float*)output_items[3]; + } + + if (d_updated) { + d_updated = false; + return 0; // history requirements may have changed. + } + + // We need this many to process one output + int nrequired = ninput_items[0] - d_taps_per_filter - d_osps; + + int i = 0, count = 0; + + // produce output as long as we can and there are enough input samples + while((i < noutput_items) && (count < nrequired)) { + while(d_out_idx < d_osps) { + d_filtnum = (int)floor(d_k); + + // Keep the current filter number in [0, d_nfilters] + // If we've run beyond the last filter, wrap around and go to next sample + // If we've go below 0, wrap around and go to previous sample + while(d_filtnum >= d_nfilters) { + d_k -= d_nfilters; + d_filtnum -= d_nfilters; + count += 1; + } + while(d_filtnum < 0) { + d_k += d_nfilters; + d_filtnum += d_nfilters; + count -= 1; + } + + out[i+d_out_idx] = d_filters[d_filtnum]->filter(&in[count+d_out_idx]); + d_k = d_k + d_rate_i + d_rate_f; // update phase + d_out_idx++; + + if(output_items.size() == 4) { + err[i] = d_error; + outrate[i] = d_rate_f; + outk[i] = d_k; + } + + // We've run out of output items we can create; return now. + if(i+d_out_idx >= noutput_items) { + consume_each(count); + return i; + } + } + + // reset here; if we didn't complete a full osps samples last time, + // the early return would take care of it. + d_out_idx = 0; + + // Update the phase and rate estimates for this symbol + float diff = d_diff_filters[d_filtnum]->filter(&in[count]); + d_error = out[i] * diff; + + // Run the control loop to update the current phase (k) and + // tracking rate estimates based on the error value + d_rate_f = d_rate_f + d_beta*d_error; + d_k = d_k + d_alpha*d_error; + + // Keep our rate within a good range + d_rate_f = gr_branchless_clip(d_rate_f, d_max_dev); + + i+=d_osps; + count += (int)floor(d_sps); + } + + consume_each(count); + return i; +} diff --git a/gr-digital/lib/digital_pn_correlator_cc.cc b/gr-digital/lib/digital_pn_correlator_cc.cc new file mode 100644 index 000000000..43a3ddbd1 --- /dev/null +++ b/gr-digital/lib/digital_pn_correlator_cc.cc @@ -0,0 +1,80 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_pn_correlator_cc.h> +#include <gr_io_signature.h> + +digital_pn_correlator_cc_sptr +digital_make_pn_correlator_cc(int degree, int mask, int seed) +{ + return gnuradio::get_initial_sptr(new digital_pn_correlator_cc + (degree, mask, seed)); +} + +digital_pn_correlator_cc::digital_pn_correlator_cc(int degree, + int mask, + int seed) + : gr_sync_decimator ("pn_correlator_cc", + gr_make_io_signature (1, 1, sizeof(gr_complex)), + gr_make_io_signature (1, 1, sizeof(gr_complex)), + (unsigned int)((1ULL << degree)-1)) // PN code length +{ + d_len = (unsigned int)((1ULL << degree)-1); + if (mask == 0) + mask = gri_glfsr::glfsr_mask(degree); + d_reference = new gri_glfsr(mask, seed); + for (int i = 0; i < d_len; i++) // initialize to last value in sequence + d_pn = 2.0*d_reference->next_bit()-1.0; +} + +digital_pn_correlator_cc::~digital_pn_correlator_cc() +{ + delete d_reference; +} + +int +digital_pn_correlator_cc::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const gr_complex *in = (const gr_complex *) input_items[0]; + gr_complex *out = (gr_complex *) output_items[0]; + gr_complex sum; + + for (int i = 0; i < noutput_items; i++) { + sum = 0.0; + + for (int j = 0; j < d_len; j++) { + if (j != 0) // retard PN generator one sample per period + d_pn = 2.0*d_reference->next_bit()-1.0; // no conditionals + sum += *in++ * d_pn; + } + + *out++ = sum*gr_complex(1.0/d_len, 0.0); + } + + return noutput_items; +} diff --git a/gr-digital/lib/digital_probe_density_b.cc b/gr-digital/lib/digital_probe_density_b.cc new file mode 100644 index 000000000..6b83d2ddb --- /dev/null +++ b/gr-digital/lib/digital_probe_density_b.cc @@ -0,0 +1,68 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2010,2012 Free Software Foundation, Inc. + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <digital_probe_density_b.h> +#include <gr_io_signature.h> +#include <stdexcept> +#include <iostream> + +digital_probe_density_b_sptr +digital_make_probe_density_b(double alpha) +{ + return gnuradio::get_initial_sptr(new digital_probe_density_b(alpha)); +} + +digital_probe_density_b::digital_probe_density_b(double alpha) + : gr_sync_block("density_b", + gr_make_io_signature(1, 1, sizeof(char)), + gr_make_io_signature(0, 0, 0)) +{ + set_alpha(alpha); + d_density = 1.0; +} + +digital_probe_density_b::~digital_probe_density_b() +{ +} + +int +digital_probe_density_b::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const char *in = (const char *)input_items[0]; + + for (int i = 0; i < noutput_items; i++) + d_density = d_alpha*(double)in[i] + d_beta*d_density; + + return noutput_items; +} + +void +digital_probe_density_b::set_alpha(double alpha) +{ + d_alpha = alpha; + d_beta = 1.0-d_alpha; +} + diff --git a/gr-digital/lib/digital_scrambler_bb.cc b/gr-digital/lib/digital_scrambler_bb.cc new file mode 100644 index 000000000..c81b09d8c --- /dev/null +++ b/gr-digital/lib/digital_scrambler_bb.cc @@ -0,0 +1,57 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_scrambler_bb.h> +#include <gr_io_signature.h> + +digital_scrambler_bb_sptr +digital_make_scrambler_bb(int mask, int seed, int len) +{ + return gnuradio::get_initial_sptr(new digital_scrambler_bb + (mask, seed, len)); +} + +digital_scrambler_bb::digital_scrambler_bb(int mask, int seed, int len) + : gr_sync_block("scrambler_bb", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (unsigned char))), + d_lfsr(mask, seed, len) +{ +} + +int +digital_scrambler_bb::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + for (int i = 0; i < noutput_items; i++) + out[i] = d_lfsr.next_bit_scramble(in[i]); + + return noutput_items; +} diff --git a/gr-digital/lib/digital_simple_framer.cc b/gr-digital/lib/digital_simple_framer.cc new file mode 100644 index 000000000..5c194543c --- /dev/null +++ b/gr-digital/lib/digital_simple_framer.cc @@ -0,0 +1,102 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <digital_simple_framer.h> +#include <digital_simple_framer_sync.h> +#include <gr_io_signature.h> +#include <assert.h> +#include <stdexcept> +#include <string.h> + + +digital_simple_framer_sptr +digital_make_simple_framer (int payload_bytesize) +{ + return gnuradio::get_initial_sptr(new digital_simple_framer + (payload_bytesize)); +} + +digital_simple_framer::digital_simple_framer (int payload_bytesize) + : gr_block ("simple_framer", + gr_make_io_signature (1, 1, sizeof (unsigned char)), + gr_make_io_signature (1, 1, sizeof (unsigned char))), + d_seqno (0), d_payload_bytesize (payload_bytesize), + d_input_block_size (payload_bytesize), + d_output_block_size (payload_bytesize + GRSF_OVERHEAD) +{ + set_output_multiple (d_output_block_size); +} + +void +digital_simple_framer::forecast (int noutput_items, gr_vector_int &ninput_items_required) +{ + assert (noutput_items % d_output_block_size == 0); + + int nblocks = noutput_items / d_output_block_size; + int input_required = nblocks * d_input_block_size; + + unsigned ninputs = ninput_items_required.size(); + for (unsigned int i = 0; i < ninputs; i++) + ninput_items_required[i] = input_required; +} + +int +digital_simple_framer::general_work (int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const unsigned char *in = (const unsigned char *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + int n = 0; + int nblocks = 0; + + memset (out, 0x55, noutput_items); + + while (n < noutput_items) { + out[0] = (GRSF_SYNC >> 56) & 0xff; + out[1] = (GRSF_SYNC >> 48) & 0xff; + out[2] = (GRSF_SYNC >> 40) & 0xff; + out[3] = (GRSF_SYNC >> 32) & 0xff; + out[4] = (GRSF_SYNC >> 24) & 0xff; + out[5] = (GRSF_SYNC >> 16) & 0xff; + out[6] = (GRSF_SYNC >> 8) & 0xff; + out[7] = (GRSF_SYNC >> 0) & 0xff; + out[8] = d_seqno++; + + memcpy (&out[9], in, d_input_block_size); + in += d_input_block_size; + out += d_output_block_size; + n += d_output_block_size; + nblocks++; + } + + assert (n == noutput_items); + + consume_each (nblocks * d_input_block_size); + return n; +} diff --git a/gr-digital/python/generic_mod_demod.py b/gr-digital/python/generic_mod_demod.py index ae876e108..aebf5349e 100644 --- a/gr-digital/python/generic_mod_demod.py +++ b/gr-digital/python/generic_mod_demod.py @@ -28,7 +28,7 @@ Generic modulation and demodulation. from gnuradio import gr from modulation_utils import extract_kwargs_from_options_for_class from utils import mod_codes -import digital_swig +import digital_swig as digital import math # default values (used in __init__ and add_options) @@ -121,10 +121,10 @@ class generic_mod(gr.hier_block2): gr.packed_to_unpacked_bb(self.bits_per_symbol(), gr.GR_MSB_FIRST) if gray_coded == True: - self.symbol_mapper = gr.map_bb(self._constellation.pre_diff_code()) + self.symbol_mapper = digital.map_bb(self._constellation.pre_diff_code()) if differential: - self.diffenc = gr.diff_encoder_bb(arity) + self.diffenc = digital.diff_encoder_bb(arity) self.chunks2symbols = gr.chunks_to_symbols_bc(self._constellation.points()) @@ -269,28 +269,28 @@ class generic_demod(gr.hier_block2): # Frequency correction fll_ntaps = 55 - self.freq_recov = digital_swig.fll_band_edge_cc(self._samples_per_symbol, self._excess_bw, - fll_ntaps, self._freq_bw) + self.freq_recov = digital.fll_band_edge_cc(self._samples_per_symbol, self._excess_bw, + fll_ntaps, self._freq_bw) # symbol timing recovery with RRC data filter taps = gr.firdes.root_raised_cosine(nfilts, nfilts*self._samples_per_symbol, 1.0, self._excess_bw, ntaps) - self.time_recov = gr.pfb_clock_sync_ccf(self._samples_per_symbol, - self._timing_bw, taps, - nfilts, nfilts//2, self._timing_max_dev) + self.time_recov = digital.pfb_clock_sync_ccf(self._samples_per_symbol, + self._timing_bw, taps, + nfilts, nfilts//2, self._timing_max_dev) fmin = -0.25 fmax = 0.25 - self.receiver = digital_swig.constellation_receiver_cb( + self.receiver = digital.constellation_receiver_cb( self._constellation, self._phase_bw, fmin, fmax) # Do differential decoding based on phase change of symbols if differential: - self.diffdec = gr.diff_decoder_bb(arity) + self.diffdec = digital.diff_decoder_bb(arity) if gray_coded: - self.symbol_mapper = gr.map_bb( + self.symbol_mapper = digital.map_bb( mod_codes.invert_code(self._constellation.pre_diff_code())) # unpack the k bit vector into a stream of bits diff --git a/gr-digital/python/qa_bytes_to_syms.py b/gr-digital/python/qa_bytes_to_syms.py new file mode 100755 index 000000000..75475a95b --- /dev/null +++ b/gr-digital/python/qa_bytes_to_syms.py @@ -0,0 +1,51 @@ +#!/usr/bin/env python +# +# Copyright 2004,2007,2010,2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital +import math + +class test_bytes_to_syms (gr_unittest.TestCase): + + def setUp (self): + self.tb = gr.top_block () + + def tearDown (self): + self.tb = None + + def test_bytes_to_syms_001 (self): + src_data = (0x01, 0x80, 0x03) + expected_result = (-1, -1, -1, -1, -1, -1, -1, +1, + +1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, +1, +1) + src = gr.vector_source_b (src_data) + op = digital.bytes_to_syms () + dst = gr.vector_sink_f () + self.tb.connect (src, op) + self.tb.connect (op, dst) + self.tb.run () + result_data = dst.data () + self.assertEqual (expected_result, result_data) + +if __name__ == '__main__': + gr_unittest.run(test_bytes_to_syms, "test_bytes_to_syms.xml") + diff --git a/gr-digital/python/qa_correlate_access_code.py b/gr-digital/python/qa_correlate_access_code.py index 6b6f25051..96246dcfb 100755 --- a/gr-digital/python/qa_correlate_access_code.py +++ b/gr-digital/python/qa_correlate_access_code.py @@ -21,7 +21,7 @@ # from gnuradio import gr, gr_unittest -import digital_swig +import digital_swig as digital import math default_access_code = '\xAC\xDD\xA4\xE2\xF2\x8C\x20\xFC' @@ -53,7 +53,7 @@ class test_correlate_access_code(gr_unittest.TestCase): src_data = (1, 0, 1, 1, 1, 1, 0, 1, 1) + pad + (0,) * 7 expected_result = pad + (1, 0, 1, 1, 3, 1, 0, 1, 1, 2) + (0,) * 6 src = gr.vector_source_b (src_data) - op = digital_swig.correlate_access_code_bb("1011", 0) + op = digital.correlate_access_code_bb("1011", 0) dst = gr.vector_sink_b () self.tb.connect (src, op, dst) self.tb.run () @@ -70,13 +70,28 @@ class test_correlate_access_code(gr_unittest.TestCase): src_data = code + (1, 0, 1, 1) + pad expected_result = pad + code + (3, 0, 1, 1) src = gr.vector_source_b (src_data) - op = digital_swig.correlate_access_code_bb(access_code, 0) + op = digital.correlate_access_code_bb(access_code, 0) dst = gr.vector_sink_b () self.tb.connect (src, op, dst) self.tb.run () result_data = dst.data () self.assertEqual (expected_result, result_data) + def test_003(self): + code = tuple(string_to_1_0_list(default_access_code)) + access_code = to_1_0_string(code) + pad = (0,) * 64 + #print code + #print access_code + src_data = code + (1, 0, 1, 1) + pad + expected_result = code + (1, 0, 1, 1) + pad + src = gr.vector_source_b (src_data) + op = digital.correlate_access_code_tag_bb(access_code, 0, "test") + dst = gr.vector_sink_b () + self.tb.connect (src, op, dst) + self.tb.run () + result_data = dst.data () + self.assertEqual (expected_result, result_data) if __name__ == '__main__': diff --git a/gr-digital/python/qa_diff_encoder.py b/gr-digital/python/qa_diff_encoder.py new file mode 100755 index 000000000..e4f5470af --- /dev/null +++ b/gr-digital/python/qa_diff_encoder.py @@ -0,0 +1,87 @@ +#!/usr/bin/env python +# +# Copyright 2006,2007,2010,2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital +import math +import random + +def make_random_int_tuple(L, min, max): + result = [] + for x in range(L): + result.append(random.randint(min, max)) + return tuple(result) + + +class test_diff_encoder (gr_unittest.TestCase): + + def setUp (self): + self.tb = gr.top_block () + + def tearDown (self): + self.tb = None + + def test_diff_encdec_000(self): + random.seed(0) + modulus = 2 + src_data = make_random_int_tuple(1000, 0, modulus-1) + expected_result = src_data + src = gr.vector_source_b(src_data) + enc = digital.diff_encoder_bb(modulus) + dec = digital.diff_decoder_bb(modulus) + dst = gr.vector_sink_b() + self.tb.connect(src, enc, dec, dst) + self.tb.run() # run the graph and wait for it to finish + actual_result = dst.data() # fetch the contents of the sink + self.assertEqual(expected_result, actual_result) + + def test_diff_encdec_001(self): + random.seed(0) + modulus = 4 + src_data = make_random_int_tuple(1000, 0, modulus-1) + expected_result = src_data + src = gr.vector_source_b(src_data) + enc = digital.diff_encoder_bb(modulus) + dec = digital.diff_decoder_bb(modulus) + dst = gr.vector_sink_b() + self.tb.connect(src, enc, dec, dst) + self.tb.run() # run the graph and wait for it to finish + actual_result = dst.data() # fetch the contents of the sink + self.assertEqual(expected_result, actual_result) + + def test_diff_encdec_002(self): + random.seed(0) + modulus = 8 + src_data = make_random_int_tuple(40000, 0, modulus-1) + expected_result = src_data + src = gr.vector_source_b(src_data) + enc = digital.diff_encoder_bb(modulus) + dec = digital.diff_decoder_bb(modulus) + dst = gr.vector_sink_b() + self.tb.connect(src, enc, dec, dst) + self.tb.run() # run the graph and wait for it to finish + actual_result = dst.data() # fetch the contents of the sink + self.assertEqual(expected_result, actual_result) + +if __name__ == '__main__': + gr_unittest.run(test_diff_encoder, "test_diff_encoder.xml") + diff --git a/gr-digital/python/qa_diff_phasor_cc.py b/gr-digital/python/qa_diff_phasor_cc.py new file mode 100755 index 000000000..3e7617fe4 --- /dev/null +++ b/gr-digital/python/qa_diff_phasor_cc.py @@ -0,0 +1,49 @@ +#!/usr/bin/env python +# +# Copyright 2004,2007,2010 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital +import math + +class test_diff_phasor (gr_unittest.TestCase): + + def setUp (self): + self.tb = gr.top_block () + + def tearDown (self): + self.tb = None + + def test_diff_phasor_cc (self): + src_data = (0+0j, 1+0j, -1+0j, 3+4j, -3-4j, -3+4j) + expected_result = (0+0j, 0+0j, -1+0j, -3-4j, -25+0j, -7-24j) + src = gr.vector_source_c (src_data) + op = digital.diff_phasor_cc () + dst = gr.vector_sink_c () + self.tb.connect (src, op) + self.tb.connect (op, dst) + self.tb.run () # run the graph and wait for it to finish + actual_result = dst.data () # fetch the contents of the sink + self.assertComplexTuplesAlmostEqual (expected_result, actual_result) + +if __name__ == '__main__': + gr_unittest.run(test_diff_phasor, "test_diff_phasor.xml") + diff --git a/gr-digital/python/qa_framer_sink.py b/gr-digital/python/qa_framer_sink.py new file mode 100755 index 000000000..bccc86dc7 --- /dev/null +++ b/gr-digital/python/qa_framer_sink.py @@ -0,0 +1,98 @@ +#!/usr/bin/env python +# +# Copyright 2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital + +default_access_code = '\xAC\xDD\xA4\xE2\xF2\x8C\x20\xFC' + +def string_to_1_0_list(s): + r = [] + for ch in s: + x = ord(ch) + for i in range(8): + t = (x >> i) & 0x1 + r.append(t) + return r + +def to_1_0_string(L): + return ''.join(map(lambda x: chr(x + ord('0')), L)) + +class test_framker_sink(gr_unittest.TestCase): + + def setUp(self): + self.tb = gr.top_block() + + def tearDown(self): + self.tb = None + + def test_001(self): + + code = (1, 1, 0, 1) + access_code = to_1_0_string(code) + header = tuple(2*[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1]) # len=1 + pad = (0,) * 100 + src_data = code + header + (0,1,0,0,0,0,0,1) + pad + expected_data = 'A' + + rcvd_pktq = gr.msg_queue() + + src = gr.vector_source_b(src_data) + correlator = digital.correlate_access_code_bb(access_code, 0) + framer_sink = digital.framer_sink_1(rcvd_pktq) + vsnk = gr.vector_sink_b() + + self.tb.connect(src, correlator, framer_sink) + self.tb.connect(correlator, vsnk) + self.tb.run () + + result_data = rcvd_pktq.delete_head() + result_data = result_data.to_string() + self.assertEqual (expected_data, result_data) + + def test_002(self): + + code = tuple(string_to_1_0_list(default_access_code)) + access_code = to_1_0_string(code) + header = tuple(2*[0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0]) # len=2 + pad = (0,) * 100 + src_data = code + header + (0,1,0,0,1,0,0,0) + (0,1,0,0,1,0,0,1) + pad + expected_data = 'HI' + + rcvd_pktq = gr.msg_queue() + + src = gr.vector_source_b(src_data) + correlator = digital.correlate_access_code_bb(access_code, 0) + framer_sink = digital.framer_sink_1(rcvd_pktq) + vsnk = gr.vector_sink_b() + + self.tb.connect(src, correlator, framer_sink) + self.tb.connect(correlator, vsnk) + self.tb.run () + + result_data = rcvd_pktq.delete_head() + result_data = result_data.to_string() + self.assertEqual (expected_data, result_data) + +if __name__ == '__main__': + gr_unittest.run(test_framker_sink, "test_framker_sink.xml") + diff --git a/gr-digital/python/qa_glfsr_source.py b/gr-digital/python/qa_glfsr_source.py new file mode 100755 index 000000000..b6abf17a7 --- /dev/null +++ b/gr-digital/python/qa_glfsr_source.py @@ -0,0 +1,95 @@ +#!/usr/bin/env python +# +# Copyright 2007,2010,2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital + +class test_glfsr_source(gr_unittest.TestCase): + + def setUp (self): + self.tb = gr.top_block () + + def tearDown (self): + self.tb = None + + def test_000_make_b(self): + src = digital.glfsr_source_b(16) + self.assertEquals(src.mask(), 0x8016) + self.assertEquals(src.period(), 2**16-1) + + def test_001_degree_b(self): + self.assertRaises(RuntimeError, + lambda: gr.glfsr_source_b(0)) + self.assertRaises(RuntimeError, + lambda: gr.glfsr_source_b(33)) + + def test_002_correlation_b(self): + for degree in range(1,11): # Higher degrees take too long to correlate + src = digital.glfsr_source_b(degree, False) + b2f = gr.chunks_to_symbols_bf((-1.0,1.0), 1) + dst = gr.vector_sink_f() + del self.tb # Discard existing top block + self.tb = gr.top_block() + self.tb.connect(src, b2f, dst) + self.tb.run() + self.tb.disconnect_all() + actual_result = dst.data() + R = auto_correlate(actual_result) + self.assertEqual(R[0], float(len(R))) # Auto-correlation peak at origin + for i in range(len(R)-1): + self.assertEqual(R[i+1], -1.0) # Auto-correlation minimum everywhere else + + def test_003_make_f(self): + src = digital.glfsr_source_f(16) + self.assertEquals(src.mask(), 0x8016) + self.assertEquals(src.period(), 2**16-1) + + def test_004_degree_f(self): + self.assertRaises(RuntimeError, + lambda: gr.glfsr_source_f(0)) + self.assertRaises(RuntimeError, + lambda: gr.glfsr_source_f(33)) + def test_005_correlation_f(self): + for degree in range(1,11): # Higher degrees take too long to correlate + src = digital.glfsr_source_f(degree, False) + dst = gr.vector_sink_f() + del self.tb # Discard existing top block + self.tb = gr.top_block() + self.tb.connect(src, dst) + self.tb.run() + + actual_result = dst.data() + R = auto_correlate(actual_result) + self.assertEqual(R[0], float(len(R))) # Auto-correlation peak at origin + for i in range(len(R)-1): + self.assertEqual(R[i+1], -1.0) # Auto-correlation minimum everywhere else + +def auto_correlate(data): + l = len(data) + R = [0,]*l + for lag in range(l): + for i in range(l): + R[lag] += data[i]*data[i-lag] + return R + +if __name__ == '__main__': + gr_unittest.run(test_glfsr_source, "test_glfsr_source.xml") diff --git a/gr-digital/python/qa_map.py b/gr-digital/python/qa_map.py new file mode 100755 index 000000000..3ad99a2c1 --- /dev/null +++ b/gr-digital/python/qa_map.py @@ -0,0 +1,60 @@ +#!/usr/bin/env python +# +# Copyright 2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital + +class test_map(gr_unittest.TestCase): + + def setUp(self): + self.tb = gr.top_block() + + def tearDown(self): + self.tb = None + + def helper(self, symbols): + src_data = [0, 1, 2, 3, 0, 1, 2, 3] + expected_data = map(lambda x: symbols[x], src_data) + src = gr.vector_source_b (src_data) + op = digital.map_bb(symbols) + dst = gr.vector_sink_b () + self.tb.connect (src, op, dst) + self.tb.run () + + result_data = list(dst.data()) + self.assertEqual (expected_data, result_data) + + def test_001(self): + symbols = [0, 0, 0, 0] + self.helper(symbols) + + def test_002(self): + symbols = [3, 2, 1, 0] + self.helper(symbols) + + def test_003(self): + symbols = [8-1, 32-1, 128, 256-1] + self.helper(symbols) + +if __name__ == '__main__': + gr_unittest.run(test_map, "test_map.xml") + diff --git a/gr-digital/python/qa_pfb_clock_sync.py b/gr-digital/python/qa_pfb_clock_sync.py new file mode 100755 index 000000000..06c8a60ba --- /dev/null +++ b/gr-digital/python/qa_pfb_clock_sync.py @@ -0,0 +1,142 @@ +#!/usr/bin/env python +# +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital +import random, cmath + +class test_pfb_clock_sync(gr_unittest.TestCase): + + def setUp (self): + self.tb = gr.top_block () + + def tearDown (self): + self.tb = None + + def test01 (self): + # Test BPSK sync + excess_bw = 0.35 + + sps = 4 + loop_bw = cmath.pi/100.0 + nfilts = 32 + init_phase = nfilts/2 + max_rate_deviation = 1.5 + osps = 1 + + ntaps = 11 * int(sps*nfilts) + taps = gr.firdes.root_raised_cosine(nfilts, nfilts*sps, + 1.0, excess_bw, ntaps) + + self.test = digital.pfb_clock_sync_ccf(sps, loop_bw, taps, + nfilts, init_phase, + max_rate_deviation, + osps) + + data = 1000*[complex(1,0), complex(-1,0)] + self.src = gr.vector_source_c(data, False) + + # pulse shaping interpolation filter + rrc_taps = gr.firdes.root_raised_cosine( + nfilts, # gain + nfilts, # sampling rate based on 32 filters in resampler + 1.0, # symbol rate + excess_bw, # excess bandwidth (roll-off factor) + ntaps) + self.rrc_filter = gr.pfb_arb_resampler_ccf(sps, rrc_taps) + + self.snk = gr.vector_sink_c() + + self.tb.connect(self.src, self.rrc_filter, self.test, self.snk) + self.tb.run() + + expected_result = 1000*[complex(-1,0), complex(1,0)] + dst_data = self.snk.data() + + # Only compare last Ncmp samples + Ncmp = 100 + len_e = len(expected_result) + len_d = len(dst_data) + expected_result = expected_result[len_e - Ncmp:] + dst_data = dst_data[len_d - Ncmp:] + + #for e,d in zip(expected_result, dst_data): + # print e, d + + self.assertComplexTuplesAlmostEqual (expected_result, dst_data, 1) + + + def test02 (self): + # Test real BPSK sync + excess_bw = 0.35 + + sps = 4 + loop_bw = cmath.pi/100.0 + nfilts = 32 + init_phase = nfilts/2 + max_rate_deviation = 1.5 + osps = 1 + + ntaps = 11 * int(sps*nfilts) + taps = gr.firdes.root_raised_cosine(nfilts, nfilts*sps, + 1.0, excess_bw, ntaps) + + self.test = digital.pfb_clock_sync_fff(sps, loop_bw, taps, + nfilts, init_phase, + max_rate_deviation, + osps) + + data = 1000*[1, -1] + self.src = gr.vector_source_f(data, False) + + # pulse shaping interpolation filter + rrc_taps = gr.firdes.root_raised_cosine( + nfilts, # gain + nfilts, # sampling rate based on 32 filters in resampler + 1.0, # symbol rate + excess_bw, # excess bandwidth (roll-off factor) + ntaps) + self.rrc_filter = gr.pfb_arb_resampler_fff(sps, rrc_taps) + + self.snk = gr.vector_sink_f() + + self.tb.connect(self.src, self.rrc_filter, self.test, self.snk) + self.tb.run() + + expected_result = 1000*[-1, 1] + dst_data = self.snk.data() + + # Only compare last Ncmp samples + Ncmp = 100 + len_e = len(expected_result) + len_d = len(dst_data) + expected_result = expected_result[len_e - Ncmp:] + dst_data = dst_data[len_d - Ncmp:] + + #for e,d in zip(expected_result, dst_data): + # print e, d + + self.assertComplexTuplesAlmostEqual (expected_result, dst_data, 1) + + +if __name__ == '__main__': + gr_unittest.run(test_pfb_clock_sync, "test_pfb_clock_sync.xml") diff --git a/gr-digital/python/qa_pn_correlator_cc.py b/gr-digital/python/qa_pn_correlator_cc.py new file mode 100755 index 000000000..377bef5fe --- /dev/null +++ b/gr-digital/python/qa_pn_correlator_cc.py @@ -0,0 +1,51 @@ +#!/usr/bin/env python +# +# Copyright 2007,2010,2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital + +class test_pn_correlator_cc(gr_unittest.TestCase): + + def setUp(self): + self.tb = gr.top_block () + + def tearDown(self): + self.tb = None + + def test_000_make(self): + c = digital.pn_correlator_cc(10) + + def test_001_correlate(self): + degree = 10 + length = 2**degree-1 + src = digital.glfsr_source_f(degree) + head = gr.head(gr.sizeof_float, length*length) + f2c = gr.float_to_complex() + corr = digital.pn_correlator_cc(degree) + dst = gr.vector_sink_c() + self.tb.connect(src, head, f2c, corr, dst) + self.tb.run() + data = dst.data() + self.assertEqual(data[-1], (1.0+0j)) + +if __name__ == '__main__': + gr_unittest.run(test_pn_correlator_cc, "test_pn_correlator_cc.xml") diff --git a/gr-digital/python/qa_probe_density.py b/gr-digital/python/qa_probe_density.py new file mode 100755 index 000000000..c5b7e0e7c --- /dev/null +++ b/gr-digital/python/qa_probe_density.py @@ -0,0 +1,71 @@ +#!/usr/bin/env python +# +# Copyright 2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital + +class test_probe_density(gr_unittest.TestCase): + + def setUp(self): + self.tb = gr.top_block() + + def tearDown(self): + self.tb = None + + def test_001(self): + src_data = [0, 1, 0, 1] + expected_data = 1 + src = gr.vector_source_b (src_data) + op = digital.probe_density_b(1) + self.tb.connect (src, op) + self.tb.run () + + result_data = op.density() + self.assertEqual (expected_data, result_data) + + + def test_002(self): + src_data = [1, 1, 1, 1] + expected_data = 1 + src = gr.vector_source_b (src_data) + op = digital.probe_density_b(0.01) + self.tb.connect (src, op) + self.tb.run () + + result_data = op.density() + self.assertEqual (expected_data, result_data) + + def test_003(self): + src_data = [0, 1, 0, 1, 0, 1, 0, 1, 0, 1] + expected_data = 0.95243 + src = gr.vector_source_b (src_data) + op = digital.probe_density_b(0.01) + self.tb.connect (src, op) + self.tb.run () + + result_data = op.density() + print result_data + self.assertAlmostEqual (expected_data, result_data, 5) + +if __name__ == '__main__': + gr_unittest.run(test_probe_density, "test_probe_density.xml") + diff --git a/gr-digital/python/qa_scrambler.py b/gr-digital/python/qa_scrambler.py new file mode 100755 index 000000000..f5bd61242 --- /dev/null +++ b/gr-digital/python/qa_scrambler.py @@ -0,0 +1,65 @@ +#!/usr/bin/env python +# +# Copyright 2008,2010,2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital + +class test_scrambler(gr_unittest.TestCase): + + def setUp (self): + self.tb = gr.top_block() + + def tearDown(self): + self.tb = None + + def test_scrambler_descrambler(self): + src_data = (1,)*1000 + src = gr.vector_source_b(src_data, False) + scrambler = digital.scrambler_bb(0x8a, 0x7F, 7) # CCSDS 7-bit scrambler + descrambler = digital.descrambler_bb(0x8a, 0x7F, 7) + dst = gr.vector_sink_b() + self.tb.connect(src, scrambler, descrambler, dst) + self.tb.run() + self.assertEqual(tuple(src_data[:-8]), dst.data()[8:]) # skip garbage during synchronization + + def test_additive_scrambler(self): + src_data = (1,)*1000 + src = gr.vector_source_b(src_data, False) + scrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7) + descrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7) + dst = gr.vector_sink_b() + self.tb.connect(src, scrambler, descrambler, dst) + self.tb.run() + self.assertEqual(src_data, dst.data()) + + def test_additive_scrambler_reset(self): + src_data = (1,)*1000 + src = gr.vector_source_b(src_data, False) + scrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7, 100) + descrambler = digital.additive_scrambler_bb(0x8a, 0x7f, 7, 100) + dst = gr.vector_sink_b() + self.tb.connect(src, scrambler, descrambler, dst) + self.tb.run() + self.assertEqual(src_data, dst.data()) + +if __name__ == '__main__': + gr_unittest.run(test_scrambler, "test_scrambler.xml") diff --git a/gr-digital/python/qa_simple_framer.py b/gr-digital/python/qa_simple_framer.py new file mode 100755 index 000000000..09b2d329b --- /dev/null +++ b/gr-digital/python/qa_simple_framer.py @@ -0,0 +1,59 @@ +#!/usr/bin/env python +# +# Copyright 2004,2007,2010,2012 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +import digital_swig as digital +import math + +class test_simple_framer (gr_unittest.TestCase): + + def setUp (self): + self.tb = gr.top_block () + + def tearDown (self): + self.tb = None + + def test_simple_framer_001 (self): + src_data = (0x00, 0x11, 0x22, 0x33, + 0x44, 0x55, 0x66, 0x77, + 0x88, 0x99, 0xaa, 0xbb, + 0xcc, 0xdd, 0xee, 0xff) + + expected_result = ( + 0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc, 0x00, 0x00, 0x11, 0x22, 0x33, 0x55, + 0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc, 0x01, 0x44, 0x55, 0x66, 0x77, 0x55, + 0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc, 0x02, 0x88, 0x99, 0xaa, 0xbb, 0x55, + 0xac, 0xdd, 0xa4, 0xe2, 0xf2, 0x8c, 0x20, 0xfc, 0x03, 0xcc, 0xdd, 0xee, 0xff, 0x55) + + src = gr.vector_source_b (src_data) + op = digital.simple_framer (4) + dst = gr.vector_sink_b () + self.tb.connect (src, op) + self.tb.connect (op, dst) + self.tb.run () + result_data = dst.data () + self.assertEqual (expected_result, result_data) + + +if __name__ == '__main__': + gr_unittest.run(test_simple_framer, "test_simple_framer.xml") + diff --git a/gr-digital/swig/CMakeLists.txt b/gr-digital/swig/CMakeLists.txt index 6f2c2251a..0d9c5f12c 100644 --- a/gr-digital/swig/CMakeLists.txt +++ b/gr-digital/swig/CMakeLists.txt @@ -45,19 +45,32 @@ install( FILES digital_swig.i ${CMAKE_CURRENT_BINARY_DIR}/digital_swig_doc.i + digital_additive_scrambler_bb.i digital_binary_slicer_fb.i + digital_bytes_to_syms.i digital_clock_recovery_mm_cc.i digital_clock_recovery_mm_ff.i + digital_cma_equalizer_cc.i digital_constellation.i digital_constellation_receiver_cb.i digital_constellation_decoder_cb.i digital_correlate_access_code_bb.i + digital_correlate_access_code_tag_bb.i digital_costas_loop_cc.i - digital_cma_equalizer_cc.i + digital_cpmmod_bc.i digital_crc32.i + digital_descrambler_bb.i + digital_diff_decoder_bb.i + digital_diff_encoder_bb.i + digital_diff_phasor_cc.i digital_fll_band_edge_cc.i + digital_framer_sink_1.i + digital_glfsr_source_b.i + digital_glfsr_source_f.i + digital_gmskmod_bc.i digital_lms_dd_equalizer_cc.i digital_kurtotic_equalizer_cc.i + digital_map_bb.i digital_mpsk_receiver_cc.i digital_mpsk_snr_est_cc.i digital_ofdm_cyclic_prefixer.i @@ -66,9 +79,14 @@ install( digital_ofdm_insert_preamble.i digital_ofdm_mapper_bcv.i digital_ofdm_sampler.i + digital_packet_sink.i + digital_pfb_clock_sync_ccf.i + digital_pfb_clock_sync_fff.i + digital_pn_correlator_cc.i + digital_probe_density_b.i digital_probe_mpsk_snr_est_c.i - digital_gmskmod_bc.i - digital_cpmmod_bc.i + digital_scrambler_bb.i + digital_simple_framer.i DESTINATION ${GR_INCLUDE_DIR}/gnuradio/swig COMPONENT "digital_swig" ) diff --git a/gr-digital/swig/digital_additive_scrambler_bb.i b/gr-digital/swig/digital_additive_scrambler_bb.i new file mode 100644 index 000000000..b063f0672 --- /dev/null +++ b/gr-digital/swig/digital_additive_scrambler_bb.i @@ -0,0 +1,31 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,additive_scrambler_bb); + +digital_additive_scrambler_bb_sptr +digital_make_additive_scrambler_bb(int mask, int seed, + int len, int count=0); + +class digital_additive_scrambler_bb : public gr_sync_block +{ +}; diff --git a/gr-digital/swig/digital_bytes_to_syms.i b/gr-digital/swig/digital_bytes_to_syms.i new file mode 100644 index 000000000..cf23f035c --- /dev/null +++ b/gr-digital/swig/digital_bytes_to_syms.i @@ -0,0 +1,29 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,bytes_to_syms); + +digital_bytes_to_syms_sptr digital_make_bytes_to_syms(); + +class digital_bytes_to_syms : public gr_sync_interpolator +{ +}; diff --git a/gr-digital/swig/digital_constellation_decoder_cb.i b/gr-digital/swig/digital_constellation_decoder_cb.i index 53d3fe8e0..547f57ee6 100644 --- a/gr-digital/swig/digital_constellation_decoder_cb.i +++ b/gr-digital/swig/digital_constellation_decoder_cb.i @@ -31,7 +31,7 @@ class digital_constellation_decoder_cb : public gr_sync_block digital_constellation_decoder_cb (digital_constellation_sptr constellation); friend digital_constellation_decoder_cb_sptr - gr_make_constellation_decoder_cb (digital_constellation_sptr constellation); + digital_make_constellation_decoder_cb (digital_constellation_sptr constellation); public: ~digital_constellation_decoder_cb(); diff --git a/gr-digital/swig/digital_correlate_access_code_tag_bb.i b/gr-digital/swig/digital_correlate_access_code_tag_bb.i new file mode 100644 index 000000000..03f20148a --- /dev/null +++ b/gr-digital/swig/digital_correlate_access_code_tag_bb.i @@ -0,0 +1,35 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,correlate_access_code_tag_bb); + +digital_correlate_access_code_tag_bb_sptr +digital_make_correlate_access_code_tag_bb(const std::string &access_code, + int threshold, + const std::string &tag_name) + throw(std::out_of_range); + +class digital_correlate_access_code_tag_bb : public gr_sync_block +{ + public: + bool set_access_code(const std::string &access_code); +}; diff --git a/gr-digital/swig/digital_descrambler_bb.i b/gr-digital/swig/digital_descrambler_bb.i new file mode 100644 index 000000000..59de806fb --- /dev/null +++ b/gr-digital/swig/digital_descrambler_bb.i @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,descrambler_bb); + +digital_descrambler_bb_sptr +digital_make_descrambler_bb(int mask, int seed, int len); + +class digital_descrambler_bb : public gr_sync_block +{ +}; diff --git a/gr-digital/swig/digital_diff_decoder_bb.i b/gr-digital/swig/digital_diff_decoder_bb.i new file mode 100644 index 000000000..f9741c771 --- /dev/null +++ b/gr-digital/swig/digital_diff_decoder_bb.i @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,diff_decoder_bb) + +digital_diff_decoder_bb_sptr +digital_make_diff_decoder_bb(unsigned int modulus); + +class digital_diff_decoder_bb : public gr_sync_block +{ +}; diff --git a/gr-digital/swig/digital_diff_encoder_bb.i b/gr-digital/swig/digital_diff_encoder_bb.i new file mode 100644 index 000000000..45a4589bf --- /dev/null +++ b/gr-digital/swig/digital_diff_encoder_bb.i @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,diff_encoder_bb) + +digital_diff_encoder_bb_sptr +digital_make_diff_encoder_bb(unsigned int modulus); + +class digital_diff_encoder_bb : public gr_sync_block +{ +}; diff --git a/gr-digital/swig/digital_diff_phasor_cc.i b/gr-digital/swig/digital_diff_phasor_cc.i new file mode 100644 index 000000000..b1e20eb99 --- /dev/null +++ b/gr-digital/swig/digital_diff_phasor_cc.i @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,diff_phasor_cc) + +digital_diff_phasor_cc_sptr +digital_make_diff_phasor_cc(); + +class digital_diff_phasor_cc : public gr_sync_block +{ +}; diff --git a/gr-digital/swig/digital_framer_sink_1.i b/gr-digital/swig/digital_framer_sink_1.i new file mode 100644 index 000000000..a5c56560d --- /dev/null +++ b/gr-digital/swig/digital_framer_sink_1.i @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,framer_sink_1); + +digital_framer_sink_1_sptr +digital_make_framer_sink_1(gr_msg_queue_sptr target_queue); + +class digital_framer_sink_1 : public gr_sync_block +{ +}; diff --git a/gr-digital/swig/digital_glfsr_source_b.i b/gr-digital/swig/digital_glfsr_source_b.i new file mode 100644 index 000000000..b1c487209 --- /dev/null +++ b/gr-digital/swig/digital_glfsr_source_b.i @@ -0,0 +1,35 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,glfsr_source_b); + +digital_glfsr_source_b_sptr +digital_make_glfsr_source_b(int degree, bool repeat=true, + int mask=0, int seed=1) + throw (std::runtime_error); + +class digital_glfsr_source_b : public gr_sync_block +{ +public: + unsigned int period() const; + int mask() const; +}; diff --git a/gr-digital/swig/digital_glfsr_source_f.i b/gr-digital/swig/digital_glfsr_source_f.i new file mode 100644 index 000000000..4d94d8cd4 --- /dev/null +++ b/gr-digital/swig/digital_glfsr_source_f.i @@ -0,0 +1,35 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,glfsr_source_f); + +digital_glfsr_source_f_sptr +digital_make_glfsr_source_f(int degree, bool repeat=true, + int mask=0, int seed=1) + throw (std::runtime_error); + +class digital_glfsr_source_f : public gr_sync_block +{ +public: + unsigned int period() const; + int mask() const; +}; diff --git a/gr-digital/swig/digital_map_bb.i b/gr-digital/swig/digital_map_bb.i new file mode 100644 index 000000000..50117d4f5 --- /dev/null +++ b/gr-digital/swig/digital_map_bb.i @@ -0,0 +1,31 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,map_bb); + +digital_map_bb_sptr +digital_make_map_bb(const std::vector<int> &map); + +class digital_map_bb : public gr_sync_block +{ +}; + diff --git a/gr-digital/swig/digital_packet_sink.i b/gr-digital/swig/digital_packet_sink.i new file mode 100644 index 000000000..84f81f75c --- /dev/null +++ b/gr-digital/swig/digital_packet_sink.i @@ -0,0 +1,34 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,packet_sink) + +digital_packet_sink_sptr +digital_make_packet_sink(const std::vector<unsigned char>& sync_vector, + gr_msg_queue_sptr target_queue, + int threshold = -1); // -1 -> use default + +class digital_packet_sink : public gr_sync_block +{ + public: + bool carrier_sensed() const; +}; diff --git a/gr-digital/swig/digital_pfb_clock_sync_ccf.i b/gr-digital/swig/digital_pfb_clock_sync_ccf.i new file mode 100644 index 000000000..dbba614cc --- /dev/null +++ b/gr-digital/swig/digital_pfb_clock_sync_ccf.i @@ -0,0 +1,58 @@ +/* -*- c++ -*- */ +/* + * Copyright 2009,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,pfb_clock_sync_ccf); + +digital_pfb_clock_sync_ccf_sptr +digital_make_pfb_clock_sync_ccf(double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size=32, + float init_phase=0, + float max_rate_deviation=1.5, + int osps=1); + +class digital_pfb_clock_sync_ccf : public gr_block +{ + public: + void set_taps(const std::vector<float> &taps, + std::vector< std::vector<float> > &ourtaps, + std::vector<gr_fir_ccf*> &ourfilter); + + std::vector< std::vector<float> > get_taps(); + std::vector< std::vector<float> > get_diff_taps(); + std::vector<float> get_channel_taps(int channel); + std::vector<float> get_diff_channel_taps(int channel); + std::string get_taps_as_string(); + std::string get_diff_taps_as_string(); + + void set_loop_bandwidth(float bw); + void set_damping_factor(float df); + void set_alpha(float alpha); + void set_beta(float beta); + void set_max_rate_deviation(float m); + + float get_loop_bandwidth() const; + float get_damping_factor() const; + float get_alpha() const; + float get_beta() const; + float get_clock_rate() const; +}; diff --git a/gr-digital/swig/digital_pfb_clock_sync_fff.i b/gr-digital/swig/digital_pfb_clock_sync_fff.i new file mode 100644 index 000000000..956495e5d --- /dev/null +++ b/gr-digital/swig/digital_pfb_clock_sync_fff.i @@ -0,0 +1,58 @@ +/* -*- c++ -*- */ +/* + * Copyright 2009,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,pfb_clock_sync_fff); + +digital_pfb_clock_sync_fff_sptr +digital_make_pfb_clock_sync_fff(double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size=32, + float init_phase=0, + float max_rate_deviation=1.5, + int osps=1); + +class digital_pfb_clock_sync_fff : public gr_block +{ + public: + void set_taps (const std::vector<float> &taps, + std::vector< std::vector<float> > &ourtaps, + std::vector<gr_fir_fff*> &ourfilter); + + std::vector< std::vector<float> > get_taps(); + std::vector< std::vector<float> > get_diff_taps(); + std::vector<float> get_channel_taps(int channel); + std::vector<float> get_diff_channel_taps(int channel); + std::string get_taps_as_string(); + std::string get_diff_taps_as_string(); + + void set_loop_bandwidth(float bw); + void set_damping_factor(float df); + void set_alpha(float alpha); + void set_beta(float beta); + void set_max_rate_deviation(float m); + + float get_loop_bandwidth() const; + float get_damping_factor() const; + float get_alpha() const; + float get_beta() const; + float get_clock_rate() const; +}; diff --git a/gr-digital/swig/digital_pn_correlator_cc.i b/gr-digital/swig/digital_pn_correlator_cc.i new file mode 100644 index 000000000..11ccf12c2 --- /dev/null +++ b/gr-digital/swig/digital_pn_correlator_cc.i @@ -0,0 +1,32 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,pn_correlator_cc) + +digital_pn_correlator_cc_sptr +digital_make_pn_correlator_cc(int degree, int mask=0, int seed=1); + +class digital_pn_correlator_cc : public gr_sync_decimator +{ + protected: + digital_pn_correlator_cc(); +}; diff --git a/gr-digital/swig/digital_probe_density_b.i b/gr-digital/swig/digital_probe_density_b.i new file mode 100644 index 000000000..b0c8a119a --- /dev/null +++ b/gr-digital/swig/digital_probe_density_b.i @@ -0,0 +1,33 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,probe_density_b); + +digital_probe_density_b_sptr +digital_make_probe_density_b(double alpha); + +class digital_probe_density_b : public gr_sync_block +{ +public: + double density() const; + void set_alpha(double alpha); +}; diff --git a/gr-digital/swig/digital_scrambler_bb.i b/gr-digital/swig/digital_scrambler_bb.i new file mode 100644 index 000000000..ac9abef92 --- /dev/null +++ b/gr-digital/swig/digital_scrambler_bb.i @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,scrambler_bb); + +digital_scrambler_bb_sptr +digital_make_scrambler_bb(int mask, int seed, int len); + +class digital_scrambler_bb : public gr_sync_block +{ +}; diff --git a/gr-digital/swig/digital_simple_framer.i b/gr-digital/swig/digital_simple_framer.i new file mode 100644 index 000000000..a376317c5 --- /dev/null +++ b/gr-digital/swig/digital_simple_framer.i @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +GR_SWIG_BLOCK_MAGIC(digital,simple_framer); + +digital_simple_framer_sptr +digital_make_simple_framer(int payload_bytesize); + +class digital_simple_framer : public gr_block +{ +}; diff --git a/gr-digital/swig/digital_swig.i b/gr-digital/swig/digital_swig.i index 4e9c660bc..6666fc7fc 100644 --- a/gr-digital/swig/digital_swig.i +++ b/gr-digital/swig/digital_swig.i @@ -36,7 +36,9 @@ enum snr_est_type_t { %include <gri_control_loop.i> %{ +#include "digital_additive_scrambler_bb.h" #include "digital_binary_slicer_fb.h" +#include "digital_bytes_to_syms.h" #include "digital_clock_recovery_mm_cc.h" #include "digital_clock_recovery_mm_ff.h" #include "digital_cma_equalizer_cc.h" @@ -44,11 +46,22 @@ enum snr_est_type_t { #include "digital_constellation_decoder_cb.h" #include "digital_constellation_receiver_cb.h" #include "digital_correlate_access_code_bb.h" +#include "digital_correlate_access_code_tag_bb.h" #include "digital_costas_loop_cc.h" +#include "digital_cpmmod_bc.h" #include "digital_crc32.h" +#include "digital_descrambler_bb.h" +#include "digital_diff_decoder_bb.h" +#include "digital_diff_encoder_bb.h" +#include "digital_diff_phasor_cc.h" #include "digital_fll_band_edge_cc.h" +#include "digital_framer_sink_1.h" +#include "digital_glfsr_source_b.h" +#include "digital_glfsr_source_f.h" +#include "digital_gmskmod_bc.h" #include "digital_kurtotic_equalizer_cc.h" #include "digital_lms_dd_equalizer_cc.h" +#include "digital_map_bb.h" #include "digital_mpsk_receiver_cc.h" #include "digital_mpsk_snr_est_cc.h" #include "digital_ofdm_cyclic_prefixer.h" @@ -57,11 +70,18 @@ enum snr_est_type_t { #include "digital_ofdm_insert_preamble.h" #include "digital_ofdm_mapper_bcv.h" #include "digital_ofdm_sampler.h" +#include "digital_packet_sink.h" +#include "digital_pfb_clock_sync_ccf.h" +#include "digital_pfb_clock_sync_fff.h" +#include "digital_pn_correlator_cc.h" +#include "digital_probe_density_b.h" #include "digital_probe_mpsk_snr_est_c.h" -#include "digital_cpmmod_bc.h" -#include "digital_gmskmod_bc.h" +#include "digital_scrambler_bb.h" +#include "digital_simple_framer.h" %} +%include "digital_additive_scrambler_bb.i" +%include "digital_bytes_to_syms.i" %include "digital_binary_slicer_fb.i" %include "digital_clock_recovery_mm_cc.i" %include "digital_clock_recovery_mm_ff.i" @@ -70,11 +90,22 @@ enum snr_est_type_t { %include "digital_constellation_decoder_cb.i" %include "digital_constellation_receiver_cb.i" %include "digital_correlate_access_code_bb.i" +%include "digital_correlate_access_code_tag_bb.i" %include "digital_costas_loop_cc.i" +%include "digital_cpmmod_bc.i" %include "digital_crc32.i" +%include "digital_descrambler_bb.i" +%include "digital_diff_decoder_bb.i" +%include "digital_diff_encoder_bb.i" +%include "digital_diff_phasor_cc.i" %include "digital_fll_band_edge_cc.i" +%include "digital_framer_sink_1.i" +%include "digital_glfsr_source_b.i" +%include "digital_glfsr_source_f.i" +%include "digital_gmskmod_bc.i" %include "digital_kurtotic_equalizer_cc.i" %include "digital_lms_dd_equalizer_cc.i" +%include "digital_map_bb.i" %include "digital_mpsk_receiver_cc.i" %include "digital_mpsk_snr_est_cc.i" %include "digital_ofdm_cyclic_prefixer.i" @@ -83,6 +114,11 @@ enum snr_est_type_t { %include "digital_ofdm_insert_preamble.i" %include "digital_ofdm_mapper_bcv.i" %include "digital_ofdm_sampler.i" +%include "digital_packet_sink.i" +%include "digital_pfb_clock_sync_ccf.i" +%include "digital_pfb_clock_sync_fff.i" +%include "digital_pn_correlator_cc.i" +%include "digital_probe_density_b.i" %include "digital_probe_mpsk_snr_est_c.i" -%include "digital_cpmmod_bc.i" -%include "digital_gmskmod_bc.i" +%include "digital_scrambler_bb.i" +%include "digital_simple_framer.i" |