diff options
Diffstat (limited to 'gnuradio-core/src/lib/general')
94 files changed, 1980 insertions, 3681 deletions
diff --git a/gnuradio-core/src/lib/general/Makefile.am b/gnuradio-core/src/lib/general/Makefile.am index de1df9ffc..fe545f98c 100644 --- a/gnuradio-core/src/lib/general/Makefile.am +++ b/gnuradio-core/src/lib/general/Makefile.am @@ -21,7 +21,9 @@ include $(top_srcdir)/Makefile.common -AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES) $(CPPUNIT_INCLUDES) $(WITH_INCLUDES) +# $(WITH_INCLUDES) must _always_ be last +AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES) $(CPPUNIT_INCLUDES) \ + $(FFTW3F_CPPFLAGS) $(GSL_CPPFLAGS) $(WITH_INCLUDES) noinst_LTLIBRARIES = libgeneral.la libgeneral-qa.la @@ -29,11 +31,12 @@ BUILT_SOURCES = # ---------------------------------------------------------------- -EXTRA_DIST = \ +EXTRA_DIST += \ gen_sine_table.py \ gr_constants.cc.in libgeneral_la_SOURCES = \ + complex_vec_test.cc \ gr_additive_scrambler_bb.cc \ gr_agc_cc.cc \ gr_agc_ff.cc \ @@ -41,25 +44,18 @@ libgeneral_la_SOURCES = \ gr_agc2_ff.cc \ gr_align_on_samplenumbers_ss.cc \ gr_bin_statistics_f.cc \ - gr_binary_slicer_fb.cc \ gr_bytes_to_syms.cc \ gr_char_to_float.cc \ gr_check_counting_s.cc \ gr_check_lfsr_32k_s.cc \ gr_circular_file.cc \ - gr_clock_recovery_mm_cc.cc \ - gr_clock_recovery_mm_ff.cc \ gr_complex_to_interleaved_short.cc \ gr_complex_to_xxx.cc \ gr_conjugate_cc.cc \ gr_copy.cc \ - gr_constellation_decoder_cb.cc \ - gr_correlate_access_code_bb.cc \ - gr_costas_loop_cc.cc \ gr_count_bits.cc \ gr_cpfsk_bc.cc \ gr_cpm.cc \ - gr_crc32.cc \ gr_ctcss_squelch_ff.cc \ gr_decode_ccsds_27_fb.cc \ gr_deinterleave.cc \ @@ -77,7 +73,6 @@ libgeneral_la_SOURCES = \ gr_fft_vcc_fftw.cc \ gr_fft_vfc.cc \ gr_firdes.cc \ - gr_fll_band_edge_cc.cc \ gr_float_to_char.cc \ gr_float_to_complex.cc \ gr_float_to_short.cc \ @@ -95,12 +90,8 @@ libgeneral_la_SOURCES = \ gr_keep_one_in_n.cc \ gr_kludge_copy.cc \ gr_lfsr_32k_source_s.cc \ - gr_lms_dfe_cc.cc \ - gr_lms_dfe_ff.cc \ gr_map_bb.cc \ - gr_math.cc \ gr_misc.cc \ - gr_mpsk_receiver_cc.cc \ gr_nlog10_ff.cc \ gr_nop.cc \ gr_null_sink.cc \ @@ -138,6 +129,7 @@ libgeneral_la_SOURCES = \ gr_rms_cf.cc \ gr_rms_ff.cc \ gr_short_to_float.cc \ + gr_int_to_float.cc \ gr_simple_correlator.cc \ gr_simple_framer.cc \ gr_simple_squelch_cc.cc \ @@ -162,6 +154,7 @@ libgeneral_la_SOURCES = \ gr_wvps_ff.cc \ gri_add_const_ss_generic.cc \ gri_char_to_float.cc \ + gri_control_loop.cc \ gri_debugger_hook.cc \ gri_fft.cc \ gri_float_to_char.cc \ @@ -176,7 +169,10 @@ libgeneral_la_SOURCES = \ gr_descrambler_bb.cc \ gr_scrambler_bb.cc \ gr_probe_mpsk_snr_c.cc \ - gr_probe_density_b.cc + gr_probe_density_b.cc \ + gr_annotator_alltoall.cc \ + gr_annotator_1to1.cc \ + gr_burst_tagger.cc libgeneral_qa_la_SOURCES = \ qa_general.cc \ @@ -190,6 +186,7 @@ libgeneral_qa_la_SOURCES = \ qa_gri_lfsr.cc grinclude_HEADERS = \ + complex_vec_test.h \ gr_additive_scrambler_bb.h \ gr_agc_cc.h \ gr_agc_ff.h \ @@ -197,25 +194,18 @@ grinclude_HEADERS = \ gr_agc2_ff.h \ gr_align_on_samplenumbers_ss.h \ gr_bin_statistics_f.h \ - gr_binary_slicer_fb.h \ gr_bytes_to_syms.h \ gr_char_to_float.h \ gr_check_counting_s.h \ gr_check_lfsr_32k_s.h \ gr_circular_file.h \ - gr_clock_recovery_mm_cc.h \ - gr_clock_recovery_mm_ff.h \ gr_complex_to_interleaved_short.h \ gr_complex_to_xxx.h \ gr_conjugate_cc.h \ - gr_constellation_decoder_cb.h \ gr_copy.h \ - gr_correlate_access_code_bb.h \ - gr_costas_loop_cc.h \ gr_count_bits.h \ gr_cpfsk_bc.h \ gr_cpm.h \ - gr_crc32.h \ gr_ctcss_squelch_ff.h \ gr_decode_ccsds_27_fb.h \ gr_diff_decoder_bb.h \ @@ -233,7 +223,6 @@ grinclude_HEADERS = \ gr_fft_vcc_fftw.h \ gr_fft_vfc.h \ gr_firdes.h \ - gr_fll_band_edge_cc.h \ gr_float_to_char.h \ gr_float_to_complex.h \ gr_float_to_short.h \ @@ -253,13 +242,10 @@ grinclude_HEADERS = \ gr_keep_one_in_n.h \ gr_kludge_copy.h \ gr_lfsr_32k_source_s.h \ - gr_lms_dfe_cc.h \ - gr_lms_dfe_ff.h \ gr_log2_const.h \ gr_map_bb.h \ gr_math.h \ gr_misc.h \ - gr_mpsk_receiver_cc.h \ gr_nco.h \ gr_nlog10_ff.h \ gr_nop.h \ @@ -298,6 +284,7 @@ grinclude_HEADERS = \ gr_rms_cf.h \ gr_rms_ff.h \ gr_short_to_float.h \ + gr_int_to_float.h \ gr_simple_correlator.h \ gr_simple_framer.h \ gr_simple_framer_sync.h \ @@ -329,6 +316,7 @@ grinclude_HEADERS = \ gri_agc2_cc.h \ gri_agc2_ff.h \ gri_char_to_float.h \ + gri_control_loop.h \ gri_debugger_hook.h \ gri_fft.h \ gri_float_to_char.h \ @@ -347,7 +335,10 @@ grinclude_HEADERS = \ gr_descrambler_bb.h \ gr_scrambler_bb.h \ gr_probe_mpsk_snr_c.h \ - gr_probe_density_b.h + gr_probe_density_b.h \ + gr_annotator_alltoall.h \ + gr_annotator_1to1.h \ + gr_burst_tagger.h noinst_HEADERS = \ qa_general.h \ @@ -361,8 +352,8 @@ noinst_HEADERS = \ sine_table.h \ qa_gr_math.h -if PYTHON swiginclude_HEADERS = \ + complex_vec_test.i \ general.i \ gr_additive_scrambler_bb.i \ gr_agc_cc.i \ @@ -371,23 +362,16 @@ swiginclude_HEADERS = \ gr_agc2_ff.i \ gr_align_on_samplenumbers_ss.i \ gr_bin_statistics_f.i \ - gr_binary_slicer_fb.i \ gr_bytes_to_syms.i \ gr_char_to_float.i \ gr_check_counting_s.i \ gr_check_lfsr_32k_s.i \ - gr_clock_recovery_mm_cc.i \ - gr_clock_recovery_mm_ff.i \ gr_complex_to_interleaved_short.i \ gr_complex_to_xxx.i \ gr_conjugate_cc.i \ - gr_constellation_decoder_cb.i \ gr_copy.i \ - gr_correlate_access_code_bb.i \ - gr_costas_loop_cc.i \ gr_cpfsk_bc.i \ gr_cpm.i \ - gr_crc32.i \ gr_ctcss_squelch_ff.i \ gr_decode_ccsds_27_fb.i \ gr_diff_decoder_bb.i \ @@ -403,7 +387,6 @@ swiginclude_HEADERS = \ gr_fft_vcc.i \ gr_fft_vfc.i \ gr_firdes.i \ - gr_fll_band_edge_cc.i \ gr_float_to_char.i \ gr_float_to_complex.i \ gr_float_to_short.i \ @@ -414,16 +397,14 @@ swiginclude_HEADERS = \ gr_glfsr_source_b.i \ gr_glfsr_source_f.i \ gr_head.i \ + gr_int_to_float.i \ gr_interleave.i \ gr_interleaved_short_to_complex.i \ gr_iqcomp_cc.i \ gr_keep_one_in_n.i \ gr_kludge_copy.i \ gr_lfsr_32k_source_s.i \ - gr_lms_dfe_cc.i \ - gr_lms_dfe_ff.i \ gr_map_bb.i \ - gr_mpsk_receiver_cc.i \ gr_nlog10_ff.i \ gr_nop.i \ gr_null_sink.i \ @@ -486,8 +467,11 @@ swiginclude_HEADERS = \ gri_agc_ff.i \ gri_agc2_cc.i \ gri_agc2_ff.i \ + gri_control_loop.i \ gr_descrambler_bb.i \ gr_scrambler_bb.i \ gr_probe_mpsk_snr_c.i \ - gr_probe_density_b.i -endif + gr_probe_density_b.i \ + gr_annotator_alltoall.i \ + gr_annotator_1to1.i \ + gr_burst_tagger.i diff --git a/gnuradio-core/src/lib/general/complex_vec_test.cc b/gnuradio-core/src/lib/general/complex_vec_test.cc new file mode 100644 index 000000000..df25c325e --- /dev/null +++ b/gnuradio-core/src/lib/general/complex_vec_test.cc @@ -0,0 +1,82 @@ +#include <complex_vec_test.h> +#include <stddef.h> + +std::vector<std::complex<float> > +complex_vec_test0() +{ + std::vector<std::complex<float> > r(5); + + for (size_t i = 0; i < r.size(); i++) + r[i] = std::complex<float>(i, i); + + return r; +} + +std::vector<std::complex<float> > +complex_vec_test1(const std::vector<std::complex<float> > &input) +{ + std::vector<std::complex<float> > r(input.size()); + + for (size_t i = 0; i < input.size(); i++) + r[i] = std::complex<float>(input[i].real()+0.5, input[i].imag()-0.5); + + return r; +} + +std::complex<float> +complex_scalar_test0() +{ + return std::complex<float>(5, 5); +} + +std::complex<float> +complex_scalar_test1(std::complex<float> input) +{ + return std::complex<float>(input.real()+0.5, input.imag()-0.5); +} + + +std::vector<float> +float_vec_test0() +{ + std::vector<float> r(5); + + for (size_t i = 0; i < r.size(); i++) + r[i] = (float) i; + + return r; +} + +std::vector<float> +float_vec_test1(const std::vector<float> &input) +{ + std::vector<float> r(input.size()); + + for (size_t i = 0; i < input.size(); i++) + r[i] = input[i] + 0.5; + + return r; +} + +std::vector<int> +int_vec_test0() +{ + std::vector<int> r(5); + + for (size_t i = 0; i < r.size(); i++) + r[i] = (int) i; + + return r; +} + +std::vector<int> +int_vec_test1(const std::vector<int> &input) +{ + std::vector<int> r(input.size()); + + for (size_t i = 0; i < input.size(); i++) + r[i] = input[i] + 1; + + return r; +} + diff --git a/gnuradio-core/src/lib/general/complex_vec_test.h b/gnuradio-core/src/lib/general/complex_vec_test.h new file mode 100644 index 000000000..d13dedf63 --- /dev/null +++ b/gnuradio-core/src/lib/general/complex_vec_test.h @@ -0,0 +1,27 @@ +#include <vector> +#include <complex> + +std::vector<std::complex<float> > +complex_vec_test0(); + +std::vector<std::complex<float> > +complex_vec_test1(const std::vector<std::complex<float> > &input); + +std::complex<float> +complex_scalar_test0(); + +std::complex<float> +complex_scalar_test1(std::complex<float> input); + +std::vector<int> +int_vec_test0(); + +std::vector<int> +int_vec_test1(const std::vector<int> &input); + +std::vector<float> +float_vec_test0(); + +std::vector<float> +float_vec_test1(const std::vector<float> &input); + diff --git a/gnuradio-core/src/lib/general/complex_vec_test.i b/gnuradio-core/src/lib/general/complex_vec_test.i new file mode 100644 index 000000000..4b95633be --- /dev/null +++ b/gnuradio-core/src/lib/general/complex_vec_test.i @@ -0,0 +1,25 @@ + +std::vector<std::complex<float> > +complex_vec_test0(); + +std::vector<std::complex<float> > +complex_vec_test1(const std::vector<std::complex<float> > &input); + +std::complex<float> +complex_scalar_test0(); + +std::complex<float> +complex_scalar_test1(std::complex<float> input); + +std::vector<int> +int_vec_test0(); + +std::vector<int> +int_vec_test1(const std::vector<int> &input); + +std::vector<float> +float_vec_test0(); + +std::vector<float> +float_vec_test1(const std::vector<float> &input); + diff --git a/gnuradio-core/src/lib/general/general.i b/gnuradio-core/src/lib/general/general.i index 8c7f31c62..e965eea64 100644 --- a/gnuradio-core/src/lib/general/general.i +++ b/gnuradio-core/src/lib/general/general.i @@ -22,6 +22,7 @@ %{ +#include <gri_control_loop.h> #include <gr_nop.h> #include <gr_null_sink.h> #include <gr_null_source.h> @@ -42,6 +43,7 @@ #include <gr_float_to_char.h> #include <gr_float_to_uchar.h> #include <gr_short_to_float.h> +#include <gr_int_to_float.h> #include <gr_char_to_float.h> #include <gr_uchar_to_float.h> #include <gr_frequency_modulator_fc.h> @@ -53,7 +55,7 @@ #include <gr_complex_to_xxx.h> #include <gr_complex_to_interleaved_short.h> #include <gr_interleaved_short_to_complex.h> -#include <gr_endianness.h> +//#include <gr_endianness.h> #include <gr_firdes.h> #include <gr_interleave.h> #include <gr_deinterleave.h> @@ -68,7 +70,6 @@ #include <gr_nlog10_ff.h> #include <gr_fake_channel_coder_pp.h> #include <gr_throttle.h> -#include <gr_mpsk_receiver_cc.h> #include <gr_stream_mux.h> #include <gr_stream_to_streams.h> #include <gr_streams_to_stream.h> @@ -76,13 +77,8 @@ #include <gr_vector_to_streams.h> #include <gr_conjugate_cc.h> #include <gr_vco_f.h> -#include <gr_crc32.h> #include <gr_threshold_ff.h> -#include <gr_clock_recovery_mm_ff.h> -#include <gr_clock_recovery_mm_cc.h> #include <gr_packet_sink.h> -#include <gr_lms_dfe_cc.h> -#include <gr_lms_dfe_ff.h> #include <gr_dpll_bb.h> #include <gr_fmdet_cf.h> #include <gr_pll_freqdet_cf.h> @@ -97,10 +93,10 @@ #include <gr_ofdm_cyclic_prefixer.h> #include <gr_ofdm_mapper_bcv.h> #include <gr_ofdm_frame_sink.h> + //#include <gr_ofdm_frame_sink2.h> #include <gr_ofdm_insert_preamble.h> #include <gr_ofdm_sampler.h> #include <gr_regenerate_bb.h> -#include <gr_costas_loop_cc.h> #include <gr_pa_2x2_phase_combiner.h> #include <gr_kludge_copy.h> #include <gr_prefs.h> @@ -108,10 +104,7 @@ #include <gr_test_types.h> #include <gr_test.h> #include <gr_unpack_k_bits_bb.h> -#include <gr_correlate_access_code_bb.h> #include <gr_diff_phasor_cc.h> -#include <gr_constellation_decoder_cb.h> -#include <gr_binary_slicer_fb.h> #include <gr_diff_encoder_bb.h> #include <gr_diff_decoder_bb.h> #include <gr_framer_sink_1.h> @@ -139,11 +132,15 @@ #include <gr_wavelet_ff.h> #include <gr_wvps_ff.h> #include <gr_copy.h> -#include <gr_fll_band_edge_cc.h> #include <gr_additive_scrambler_bb.h> +#include <complex_vec_test.h> +#include <gr_annotator_alltoall.h> +#include <gr_annotator_1to1.h> +#include <gr_burst_tagger.h> #include <gr_cpm.h> %} +%include "gri_control_loop.i" %include "gr_nop.i" %include "gr_null_sink.i" %include "gr_null_source.i" @@ -164,6 +161,7 @@ %include "gr_float_to_char.i" %include "gr_float_to_uchar.i" %include "gr_short_to_float.i" +%include "gr_int_to_float.i" %include "gr_char_to_float.i" %include "gr_uchar_to_float.i" %include "gr_frequency_modulator_fc.i" @@ -174,7 +172,7 @@ %include "gr_align_on_samplenumbers_ss.i" %include "gr_complex_to_xxx.i" %include "gr_complex_to_interleaved_short.i" -%include "gr_endianness.i" +//%include "gr_endianness.i" %include "gr_interleaved_short_to_complex.i" %include "gr_firdes.i" %include "gr_interleave.i" @@ -190,7 +188,6 @@ %include "gr_nlog10_ff.i" %include "gr_fake_channel_coder_pp.i" %include "gr_throttle.i" -%include "gr_mpsk_receiver_cc.i" %include "gr_stream_mux.i" %include "gr_stream_to_streams.i" %include "gr_streams_to_stream.i" @@ -198,13 +195,8 @@ %include "gr_vector_to_streams.i" %include "gr_conjugate_cc.i" %include "gr_vco_f.i" -%include "gr_crc32.i" %include "gr_threshold_ff.i" -%include "gr_clock_recovery_mm_ff.i" -%include "gr_clock_recovery_mm_cc.i" %include "gr_packet_sink.i" -%include "gr_lms_dfe_cc.i" -%include "gr_lms_dfe_ff.i" %include "gr_dpll_bb.i" %include "gr_fmdet_cf.i" %include "gr_pll_freqdet_cf.i" @@ -219,10 +211,10 @@ %include "gr_ofdm_cyclic_prefixer.i" %include "gr_ofdm_mapper_bcv.i" %include "gr_ofdm_frame_sink.i" + //%include "gr_ofdm_frame_sink2.i" %include "gr_ofdm_insert_preamble.i" %include "gr_ofdm_sampler.i" %include "gr_regenerate_bb.i" -%include "gr_costas_loop_cc.i" %include "gr_pa_2x2_phase_combiner.i" %include "gr_kludge_copy.i" %include "gr_prefs.i" @@ -230,10 +222,7 @@ %include "gr_test_types.h" %include "gr_test.i" %include "gr_unpack_k_bits_bb.i" -%include "gr_correlate_access_code_bb.i" %include "gr_diff_phasor_cc.i" -%include "gr_constellation_decoder_cb.i" -%include "gr_binary_slicer_fb.i" %include "gr_diff_encoder_bb.i" %include "gr_diff_decoder_bb.i" %include "gr_framer_sink_1.i" @@ -261,6 +250,9 @@ %include "gr_wavelet_ff.i" %include "gr_wvps_ff.i" %include "gr_copy.i" -%include "gr_fll_band_edge_cc.i" %include "gr_additive_scrambler_bb.i" +%include "complex_vec_test.i" +%include "gr_annotator_alltoall.i" +%include "gr_annotator_1to1.i" +%include "gr_burst_tagger.i" %include "gr_cpm.i" diff --git a/gnuradio-core/src/lib/general/gr_align_on_samplenumbers_ss.i b/gnuradio-core/src/lib/general/gr_align_on_samplenumbers_ss.i index 841613ca6..ea73dd46d 100644 --- a/gnuradio-core/src/lib/general/gr_align_on_samplenumbers_ss.i +++ b/gnuradio-core/src/lib/general/gr_align_on_samplenumbers_ss.i @@ -22,7 +22,8 @@ GR_SWIG_BLOCK_MAGIC(gr,align_on_samplenumbers_ss); -gr_align_on_samplenumbers_ss_sptr gr_make_align_on_samplenumbers_ss(int nchan=2, int align_interval=128); +gr_align_on_samplenumbers_ss_sptr +gr_make_align_on_samplenumbers_ss(int nchan=2, int align_interval=128) throw (std::exception); class gr_align_on_samplenumbers_ss : public gr_block { diff --git a/gnuradio-core/src/lib/general/gr_annotator_1to1.cc b/gnuradio-core/src/lib/general/gr_annotator_1to1.cc new file mode 100644 index 000000000..511b356e5 --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_annotator_1to1.cc @@ -0,0 +1,107 @@ +/* -*- c++ -*- */ +/* + * Copyright 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gr_annotator_1to1.h> +#include <gr_io_signature.h> +#include <string.h> +#include <iostream> +#include <iomanip> + +gr_annotator_1to1_sptr +gr_make_annotator_1to1 (int when, size_t sizeof_stream_item) +{ + return gnuradio::get_initial_sptr (new gr_annotator_1to1 + (when, sizeof_stream_item)); +} + +gr_annotator_1to1::gr_annotator_1to1 (int when, size_t sizeof_stream_item) + : gr_sync_block ("annotator_1to1", + gr_make_io_signature (1, -1, sizeof_stream_item), + gr_make_io_signature (1, -1, sizeof_stream_item)), + d_itemsize(sizeof_stream_item), d_when((uint64_t)when) +{ + set_tag_propagation_policy(TPP_ONE_TO_ONE); + + d_tag_counter = 0; + set_relative_rate(1.0); +} + +gr_annotator_1to1::~gr_annotator_1to1 () +{ +} + +int +gr_annotator_1to1::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const float *in = (const float*)input_items[0]; + float *out = (float*)output_items[0]; + + std::stringstream str; + str << name() << unique_id(); + + uint64_t abs_N = 0; + int ninputs = input_items.size(); + for(int i = 0; i < ninputs; i++) { + abs_N = nitems_read(i); + + std::vector<pmt::pmt_t> all_tags; + get_tags_in_range(all_tags, i, abs_N, abs_N + noutput_items); + + std::vector<pmt::pmt_t>::iterator itr; + for(itr = all_tags.begin(); itr != all_tags.end(); itr++) { + d_stored_tags.push_back(*itr); + } + } + + // Storing the current noutput_items as the value to the "noutput_items" key + pmt::pmt_t srcid = pmt::pmt_string_to_symbol(str.str()); + pmt::pmt_t key = pmt::pmt_string_to_symbol("seq"); + + // Work does nothing to the data stream; just copy all inputs to outputs + // Adds a new tag when the number of items read is a multiple of d_when + abs_N = nitems_read(0); + int noutputs = output_items.size(); + for(int j = 0; j < noutput_items; j++) { + // the min() is a hack to make sure this doesn't segfault if there are a + // different number of ins and outs. This is specifically designed to test + // the 1-to-1 propagation policy. + for(int i = 0; i < std::min(noutputs, ninputs); i++) { + if(abs_N % d_when == 0) { + pmt::pmt_t value = pmt::pmt_from_uint64(d_tag_counter++); + add_item_tag(i, abs_N, key, value, srcid); + } + + in = (const float*)input_items[i]; + out = (float*)output_items[i]; + out[j] = in[j]; + } + abs_N++; + } + + return noutput_items; +} diff --git a/gnuradio-core/src/lib/general/gr_annotator_1to1.h b/gnuradio-core/src/lib/general/gr_annotator_1to1.h new file mode 100644 index 000000000..4abc5b051 --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_annotator_1to1.h @@ -0,0 +1,74 @@ +/* -*- c++ -*- */ +/* + * Copyright 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. + */ + +#ifndef INCLUDED_GR_ANNOTATOR_1TO1_H +#define INCLUDED_GR_ANNOTATOR_1TO1_H + +#include <gr_sync_block.h> + +class gr_annotator_1to1; +typedef boost::shared_ptr<gr_annotator_1to1> gr_annotator_1to1_sptr; + +// public constructor +gr_annotator_1to1_sptr +gr_make_annotator_1to1 (int when, size_t sizeof_stream_item); + +/*! + * \brief 1-to-1 stream annotator testing block. FOR TESTING PURPOSES ONLY. + * + * This block creates tags to be sent downstream every 10,000 items it sees. The + * tags contain the name and ID of the instantiated block, use "seq" as a key, + * and have a counter that increments by 1 for every tag produced that is used + * as the tag's value. The tags are propagated using the 1-to-1 policy. + * + * It also stores a copy of all tags it sees flow past it. These tags can be + * recalled externally with the data() member. + * + * This block is only meant for testing and showing how to use the tags. + */ +class gr_annotator_1to1 : public gr_sync_block +{ + public: + ~gr_annotator_1to1 (); + int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + std::vector<pmt::pmt_t> data() const + { + return d_stored_tags; + } + +protected: + gr_annotator_1to1 (int when, size_t sizeof_stream_item); + + private: + size_t d_itemsize; + uint64_t d_when; + uint64_t d_tag_counter; + std::vector<pmt::pmt_t> d_stored_tags; + + friend gr_annotator_1to1_sptr + gr_make_annotator_1to1 (int when, size_t sizeof_stream_item); +}; + +#endif diff --git a/gnuradio-core/src/lib/general/gr_lms_dfe_ff.i b/gnuradio-core/src/lib/general/gr_annotator_1to1.i index 3ca488b52..f29ecbf53 100644 --- a/gnuradio-core/src/lib/general/gr_lms_dfe_ff.i +++ b/gnuradio-core/src/lib/general/gr_annotator_1to1.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,15 +20,17 @@ * Boston, MA 02110-1301, USA. */ +GR_SWIG_BLOCK_MAGIC(gr,annotator_1to1); -GR_SWIG_BLOCK_MAGIC(gr,lms_dfe_ff) +gr_annotator_1to1_sptr gr_make_annotator_1to1 (int when, + size_t sizeof_stream_item); -gr_lms_dfe_ff_sptr gr_make_lms_dfe_ff (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - -class gr_lms_dfe_ff : public gr_sync_block +class gr_annotator_1to1 : public gr_sync_block { - private: - gr_lms_dfe_ff (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); +public: + std::vector<pmt::pmt_t> data() const; + +private: + gr_annotator_1to1 (int when, size_t sizeof_stream_item); }; + diff --git a/gnuradio-core/src/lib/general/gr_annotator_alltoall.cc b/gnuradio-core/src/lib/general/gr_annotator_alltoall.cc new file mode 100644 index 000000000..344fd088b --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_annotator_alltoall.cc @@ -0,0 +1,110 @@ +/* -*- c++ -*- */ +/* + * Copyright 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gr_annotator_alltoall.h> +#include <gr_io_signature.h> +#include <string.h> +#include <iostream> +#include <iomanip> + +gr_annotator_alltoall_sptr +gr_make_annotator_alltoall (int when, size_t sizeof_stream_item) +{ + return gnuradio::get_initial_sptr (new gr_annotator_alltoall + (when, sizeof_stream_item)); +} + +gr_annotator_alltoall::gr_annotator_alltoall (int when, + size_t sizeof_stream_item) + : gr_sync_block ("annotator_alltoall", + gr_make_io_signature (1, -1, sizeof_stream_item), + gr_make_io_signature (1, -1, sizeof_stream_item)), + d_itemsize(sizeof_stream_item), d_when((uint64_t)when) +{ + set_tag_propagation_policy(TPP_ALL_TO_ALL); + + d_tag_counter = 0; +} + +gr_annotator_alltoall::~gr_annotator_alltoall () +{ +} + +int +gr_annotator_alltoall::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const float *in = (const float *) input_items[0]; + float *out = (float *) output_items[0]; + + std::stringstream str; + str << name() << unique_id(); + + uint64_t abs_N = 0, end_N; + int ninputs = input_items.size(); + for(int i = 0; i < ninputs; i++) { + abs_N = nitems_read(i); + end_N = abs_N + (uint64_t)(noutput_items); + + std::vector<pmt::pmt_t> all_tags; + get_tags_in_range(all_tags, i, abs_N, end_N); + + std::vector<pmt::pmt_t>::iterator itr; + for(itr = all_tags.begin(); itr != all_tags.end(); itr++) { + d_stored_tags.push_back(*itr); + } + } + + // Source ID and key for any tag that might get applied from this block + pmt::pmt_t srcid = pmt::pmt_string_to_symbol(str.str()); + pmt::pmt_t key = pmt::pmt_string_to_symbol("seq"); + + // Work does nothing to the data stream; just copy all inputs to outputs + // Adds a new tag when the number of items read is a multiple of d_when + abs_N = nitems_written(0); + int noutputs = output_items.size(); + + for(int j = 0; j < noutput_items; j++) { + for(int i = 0; i < noutputs; i++) { + if(abs_N % d_when == 0) { + pmt::pmt_t value = pmt::pmt_from_uint64(d_tag_counter++); + add_item_tag(i, abs_N, key, value, srcid); + } + + // Sum all of the inputs together for each output. Just 'cause. + out = (float*)output_items[i]; + out[j] = 0; + for(int ins = 0; ins < ninputs; ins++) { + in = (const float*)input_items[ins]; + out[j] += in[j]; + } + } + abs_N++; + } + + return noutput_items; +} diff --git a/gnuradio-core/src/lib/general/gr_annotator_alltoall.h b/gnuradio-core/src/lib/general/gr_annotator_alltoall.h new file mode 100644 index 000000000..e1e51ebf3 --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_annotator_alltoall.h @@ -0,0 +1,75 @@ +/* -*- c++ -*- */ +/* + * Copyright 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. + */ + +#ifndef INCLUDED_GR_ANNOTATOR_ALLTOALL_H +#define INCLUDED_GR_ANNOTATOR_ALLTOALL_H + +#include <gr_sync_block.h> + +class gr_annotator_alltoall; +typedef boost::shared_ptr<gr_annotator_alltoall> gr_annotator_alltoall_sptr; + +// public constructor +gr_annotator_alltoall_sptr +gr_make_annotator_alltoall (int when, size_t sizeof_stream_item); + +/*! + * \brief All-to-all stream annotator testing block. FOR TESTING PURPOSES ONLY. + * + * This block creates tags to be sent downstream every 10,000 items it sees. The + * tags contain the name and ID of the instantiated block, use "seq" as a key, + * and have a counter that increments by 1 for every tag produced that is used + * as the tag's value. The tags are propagated using the all-to-all policy. + * + * It also stores a copy of all tags it sees flow past it. These tags can be + * recalled externally with the data() member. + * + * This block is only meant for testing and showing how to use the tags. + */ +class gr_annotator_alltoall : public gr_sync_block +{ + public: + ~gr_annotator_alltoall (); + + int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + std::vector<pmt::pmt_t> data() const + { + return d_stored_tags; + } + +protected: + gr_annotator_alltoall (int when, size_t sizeof_stream_item); + + private: + size_t d_itemsize; + uint64_t d_when; + uint64_t d_tag_counter; + std::vector<pmt::pmt_t> d_stored_tags; + + friend gr_annotator_alltoall_sptr + gr_make_annotator_alltoall (int when, size_t sizeof_stream_item); +}; + +#endif diff --git a/gnuradio-core/src/lib/general/gr_lms_dfe_cc.i b/gnuradio-core/src/lib/general/gr_annotator_alltoall.i index 9a9f22b6e..f9bf6dd9a 100644 --- a/gnuradio-core/src/lib/general/gr_lms_dfe_cc.i +++ b/gnuradio-core/src/lib/general/gr_annotator_alltoall.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,18 +20,17 @@ * Boston, MA 02110-1301, USA. */ +GR_SWIG_BLOCK_MAGIC(gr,annotator_alltoall); -GR_SWIG_BLOCK_MAGIC(gr,lms_dfe_cc) +gr_annotator_alltoall_sptr gr_make_annotator_alltoall (int when, + size_t sizeof_stream_item); -gr_lms_dfe_cc_sptr gr_make_lms_dfe_cc (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - -class gr_lms_dfe_cc : public gr_sync_block +class gr_annotator_alltoall : public gr_sync_block { - private: - gr_lms_dfe_cc (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - gr_complex slicer_0deg(gr_complex baud); - gr_complex slicer_45deg(gr_complex baud); - gr_complex conjg(gr_complex val); +public: + std::vector<pmt::pmt_t> data() const; + +private: + gr_annotator_alltoall (int when, size_t sizeof_stream_item); }; + diff --git a/gnuradio-core/src/lib/general/gr_bin_statistics_f.i b/gnuradio-core/src/lib/general/gr_bin_statistics_f.i index 5cec882f0..be98a464b 100644 --- a/gnuradio-core/src/lib/general/gr_bin_statistics_f.i +++ b/gnuradio-core/src/lib/general/gr_bin_statistics_f.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2006 Free Software Foundation, Inc. + * Copyright 2006,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -19,6 +19,9 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ +// Directors are only supported in Python, Java and C#. gr_feval_dd uses directors +#ifdef SWIGPYTHON + GR_SWIG_BLOCK_MAGIC(gr,bin_statistics_f); gr_bin_statistics_f_sptr @@ -40,3 +43,5 @@ private: public: ~gr_bin_statistics_f(); }; + +#endif diff --git a/gnuradio-core/src/lib/general/gr_burst_tagger.cc b/gnuradio-core/src/lib/general/gr_burst_tagger.cc new file mode 100644 index 000000000..4b3847b08 --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_burst_tagger.cc @@ -0,0 +1,83 @@ +/* -*- c++ -*- */ +/* + * Copyright 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gr_burst_tagger.h> +#include <gr_io_signature.h> +#include <string.h> + +gr_burst_tagger_sptr +gr_make_burst_tagger(size_t itemsize) +{ + return gnuradio::get_initial_sptr(new gr_burst_tagger(itemsize)); +} + +gr_burst_tagger::gr_burst_tagger(size_t itemsize) + : gr_sync_block ("burst_tagger", + gr_make_io_signature2 (2, 2, itemsize, sizeof(short)), + gr_make_io_signature (1, 1, itemsize)), + d_itemsize(itemsize), d_state(false) +{ + std::stringstream str; + str << name() << unique_id(); + + d_key = pmt::pmt_string_to_symbol("burst"); + d_id = pmt::pmt_string_to_symbol(str.str()); +} + +gr_burst_tagger::~gr_burst_tagger() +{ +} + +int +gr_burst_tagger::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + const char *signal = (const char*)input_items[0]; + const short *trigger = (const short*)input_items[1]; + char *out = (char*)output_items[0]; + + memcpy(out, signal, noutput_items * d_itemsize); + + for(int i = 0; i < noutput_items; i++) { + if(trigger[i] > 0) { + if(d_state == false) { + d_state = true; + pmt::pmt_t value = pmt::PMT_T; + add_item_tag(0, nitems_written(0)+i, d_key, value, d_id); + } + } + else { + if(d_state == true) { + d_state = false; + pmt::pmt_t value = pmt::PMT_F; + add_item_tag(0, nitems_written(0)+i, d_key, value, d_id); + } + } + } + + return noutput_items; +} diff --git a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.i b/gnuradio-core/src/lib/general/gr_burst_tagger.h index c9c792c8a..8f814bea0 100644 --- a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.i +++ b/gnuradio-core/src/lib/general/gr_burst_tagger.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2009 Free Software Foundation, Inc. + * Copyright 2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,22 +20,37 @@ * Boston, MA 02110-1301, USA. */ -GR_SWIG_BLOCK_MAGIC(gr,fll_band_edge_cc); +#ifndef INCLUDED_GR_BURST_TAGGER_H +#define INCLUDED_GR_BURST_TAGGER_H -gr_fll_band_edge_cc_sptr gr_make_fll_band_edge_cc (float samps_per_sym, float rolloff, - int filter_size, float alpha, float beta); +#include <gr_sync_block.h> -class gr_fll_band_edge_cc : public gr_sync_block +class gr_burst_tagger; +typedef boost::shared_ptr<gr_burst_tagger> gr_burst_tagger_sptr; + +gr_burst_tagger_sptr gr_make_burst_tagger(size_t itemsize); + +/*! + * \brief output[i] = input[i] + * \ingroup misc_blk + * + */ +class gr_burst_tagger : public gr_sync_block { - private: - gr_fll_band_edge_cc (float samps_per_sym, float rolloff, - int filter_size, float alpha, float beta); + size_t d_itemsize; + bool d_state; + pmt::pmt_t d_key; + pmt::pmt_t d_id; + + friend gr_burst_tagger_sptr gr_make_burst_tagger(size_t itemsize); + gr_burst_tagger(size_t itemsize); public: - ~gr_fll_band_edge_cc (); + ~gr_burst_tagger(); - void set_alpha (float alpha); - void set_beta (float beta); - void design_filter(float samps_per_sym, float rolloff, int filter_size); - void print_taps(); + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); }; + +#endif diff --git a/gnuradio-core/src/lib/general/gr_binary_slicer_fb.i b/gnuradio-core/src/lib/general/gr_burst_tagger.i index b6f4e9312..ebf1eea8c 100644 --- a/gnuradio-core/src/lib/general/gr_binary_slicer_fb.i +++ b/gnuradio-core/src/lib/general/gr_burst_tagger.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2006 Free Software Foundation, Inc. + * Copyright 2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,14 +20,12 @@ * Boston, MA 02110-1301, USA. */ -GR_SWIG_BLOCK_MAGIC(gr,binary_slicer_fb); +GR_SWIG_BLOCK_MAGIC(gr,burst_tagger) -gr_binary_slicer_fb_sptr gr_make_binary_slicer_fb (); +gr_burst_tagger_sptr gr_make_burst_tagger(size_t itemsize); -class gr_binary_slicer_fb : public gr_sync_block +class gr_burst_tagger : public gr_sync_block { private: - gr_binary_slicer_fb (); - - public: + gr_burst_tagger(size_t itemsize); }; diff --git a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.cc b/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.cc deleted file mode 100644 index 23bbf821f..000000000 --- a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.cc +++ /dev/null @@ -1,217 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005,2006,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_io_signature.h> -#include <gr_prefs.h> -#include <gr_clock_recovery_mm_cc.h> -#include <gri_mmse_fir_interpolator_cc.h> -#include <stdexcept> -#include <cstdio> - - -// Public constructor - - -gr_clock_recovery_mm_cc_sptr -gr_make_clock_recovery_mm_cc(float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit) -{ - return gnuradio::get_initial_sptr(new gr_clock_recovery_mm_cc (omega, - gain_omega, - mu, - gain_mu, - omega_relative_limit)); -} - -gr_clock_recovery_mm_cc::gr_clock_recovery_mm_cc (float omega, float gain_omega, float mu, - float gain_mu, float omega_relative_limit) - : gr_block ("clock_recovery_mm_cc", - gr_make_io_signature (1, 1, sizeof (gr_complex)), - gr_make_io_signature (1, 2, sizeof (gr_complex))), - d_mu (mu), d_omega(omega), d_gain_omega(gain_omega), - d_omega_relative_limit(omega_relative_limit), - d_gain_mu(gain_mu), d_last_sample(0), d_interp(new gri_mmse_fir_interpolator_cc()), - d_verbose(gr_prefs::singleton()->get_bool("clock_recovery_mm_cc", "verbose", false)), - d_p_2T(0), d_p_1T(0), d_p_0T(0), d_c_2T(0), d_c_1T(0), d_c_0T(0) -{ - if (omega <= 0.0) - throw std::out_of_range ("clock rate must be > 0"); - if (gain_mu < 0 || gain_omega < 0) - throw std::out_of_range ("Gains must be non-negative"); - - set_omega(omega); // also sets min and max omega - set_relative_rate (1.0 / omega); - set_history(3); // ensure 2 extra input sample is available -} - -gr_clock_recovery_mm_cc::~gr_clock_recovery_mm_cc () -{ - delete d_interp; -} - -void -gr_clock_recovery_mm_cc::forecast(int noutput_items, gr_vector_int &ninput_items_required) -{ - unsigned ninputs = ninput_items_required.size(); - for (unsigned i=0; i < ninputs; i++) - ninput_items_required[i] = - (int) ceil((noutput_items * d_omega) + d_interp->ntaps()); -} - -gr_complex -gr_clock_recovery_mm_cc::slicer_0deg (gr_complex sample) -{ - float real=0, imag=0; - - if(sample.real() > 0) - real = 1; - if(sample.imag() > 0) - imag = 1; - return gr_complex(real,imag); -} - -gr_complex -gr_clock_recovery_mm_cc::slicer_45deg (gr_complex sample) -{ - float real= -1, imag = -1; - if(sample.real() > 0) - real=1; - if(sample.imag() > 0) - imag = 1; - return gr_complex(real,imag); -} - -/* - Modified Mueller and Muller clock recovery circuit - Based: - G. R. Danesfahani, T.G. Jeans, "Optimisation of modified Mueller and Muller - algorithm," Electronics Letters, Vol. 31, no. 13, 22 June 1995, pp. 1032 - 1033. -*/ - -static const int FUDGE = 16; - -int -gr_clock_recovery_mm_cc::general_work (int noutput_items, - gr_vector_int &ninput_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 *foptr = (gr_complex *) output_items[1]; - - bool write_foptr = output_items.size() >= 2; - - int ii = 0; // input index - int oo = 0; // output index - int ni = ninput_items[0] - d_interp->ntaps() - FUDGE; // don't use more input than this - - assert(d_mu >= 0.0); - assert(d_mu <= 1.0); - - float mm_val=0; - gr_complex u, x, y; - - // This loop writes the error to the second output, if it exists - if (write_foptr) { - while(oo < noutput_items && ii < ni) { - d_p_2T = d_p_1T; - d_p_1T = d_p_0T; - d_p_0T = d_interp->interpolate (&in[ii], d_mu); - - d_c_2T = d_c_1T; - d_c_1T = d_c_0T; - d_c_0T = slicer_0deg(d_p_0T); - - x = (d_c_0T - d_c_2T) * conj(d_p_1T); - y = (d_p_0T - d_p_2T) * conj(d_c_1T); - u = y - x; - mm_val = u.real(); - out[oo++] = d_p_0T; - - // limit mm_val - mm_val = gr_branchless_clip(mm_val,1.0); - d_omega = d_omega + d_gain_omega * mm_val; - d_omega = d_omega_mid + gr_branchless_clip(d_omega-d_omega_mid, d_omega_relative_limit); // make sure we don't walk away - - d_mu = d_mu + d_omega + d_gain_mu * mm_val; - ii += (int)floor(d_mu); - d_mu -= floor(d_mu); - - // write the error signal to the second output - foptr[oo-1] = gr_complex(d_mu,0); - - if (ii < 0) // clamp it. This should only happen with bogus input - ii = 0; - } - } - // This loop does not write to the second output (ugly, but faster) - else { - while(oo < noutput_items && ii < ni) { - d_p_2T = d_p_1T; - d_p_1T = d_p_0T; - d_p_0T = d_interp->interpolate (&in[ii], d_mu); - - d_c_2T = d_c_1T; - d_c_1T = d_c_0T; - d_c_0T = slicer_0deg(d_p_0T); - - x = (d_c_0T - d_c_2T) * conj(d_p_1T); - y = (d_p_0T - d_p_2T) * conj(d_c_1T); - u = y - x; - mm_val = u.real(); - out[oo++] = d_p_0T; - - // limit mm_val - mm_val = gr_branchless_clip(mm_val,1.0); - - d_omega = d_omega + d_gain_omega * mm_val; - d_omega = d_omega_mid + gr_branchless_clip(d_omega-d_omega_mid, d_omega_relative_limit); // make sure we don't walk away - - d_mu = d_mu + d_omega + d_gain_mu * mm_val; - ii += (int)floor(d_mu); - d_mu -= floor(d_mu); - - if(d_verbose) { - printf("%f\t%f\n", d_omega, d_mu); - } - - if (ii < 0) // clamp it. This should only happen with bogus input - ii = 0; - } - } - - if (ii > 0){ - if (ii > ninput_items[0]){ - fprintf(stderr, "gr_clock_recovery_mm_cc: ii > ninput_items[0] (%d > %d)\n", - ii, ninput_items[0]); - assert(0); - } - consume_each (ii); - } - - return oo; -} diff --git a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.h b/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.h deleted file mode 100644 index 04227a145..000000000 --- a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.h +++ /dev/null @@ -1,109 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004 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_CLOCK_RECOVERY_MM_CC_H -#define INCLUDED_GR_CLOCK_RECOVERY_MM_CC_H - -#include <gr_block.h> -#include <gr_complex.h> -#include <gr_math.h> - -class gri_mmse_fir_interpolator_cc; - -class gr_clock_recovery_mm_cc; -typedef boost::shared_ptr<gr_clock_recovery_mm_cc> gr_clock_recovery_mm_cc_sptr; - -// public constructor -gr_clock_recovery_mm_cc_sptr -gr_make_clock_recovery_mm_cc (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit=0.001); - -/*! - * \brief Mueller and Müller (M&M) based clock recovery block with complex input, complex output. - * \ingroup sync_blk - * - * This implements the Mueller and Müller (M&M) discrete-time error-tracking synchronizer. - * The complex version here is based on: - * Modified Mueller and Muller clock recovery circuit - * Based: - * G. R. Danesfahani, T.G. Jeans, "Optimisation of modified Mueller and Muller - * algorithm," Electronics Letters, Vol. 31, no. 13, 22 June 1995, pp. 1032 - 1033. - */ -class gr_clock_recovery_mm_cc : public gr_block -{ - public: - ~gr_clock_recovery_mm_cc (); - 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); - float mu() const { return d_mu;} - float omega() const { return d_omega;} - float gain_mu() const { return d_gain_mu;} - float gain_omega() const { return d_gain_omega;} - void set_verbose (bool verbose) { d_verbose = verbose; } - - void set_gain_mu (float gain_mu) { d_gain_mu = gain_mu; } - void set_gain_omega (float gain_omega) { d_gain_omega = gain_omega; } - void set_mu (float mu) { d_mu = mu; } - void set_omega (float omega) { - d_omega = omega; - d_min_omega = omega*(1.0 - d_omega_relative_limit); - d_max_omega = omega*(1.0 + d_omega_relative_limit); - d_omega_mid = 0.5*(d_min_omega+d_max_omega); - } - -protected: - gr_clock_recovery_mm_cc (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limi); - - private: - float d_mu; - float d_omega; - float d_gain_omega; - float d_min_omega; // minimum allowed omega - float d_max_omega; // maximum allowed omeg - float d_omega_relative_limit; // used to compute min and max omega - float d_omega_mid; - float d_gain_mu; - gr_complex d_last_sample; - gri_mmse_fir_interpolator_cc *d_interp; - bool d_verbose; - - gr_complex d_p_2T; - gr_complex d_p_1T; - gr_complex d_p_0T; - - gr_complex d_c_2T; - gr_complex d_c_1T; - gr_complex d_c_0T; - - gr_complex slicer_0deg (gr_complex sample); - gr_complex slicer_45deg (gr_complex sample); - - friend gr_clock_recovery_mm_cc_sptr - gr_make_clock_recovery_mm_cc (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.i b/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.i deleted file mode 100644 index 98d326b28..000000000 --- a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_cc.i +++ /dev/null @@ -1,49 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004 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(gr,clock_recovery_mm_cc); - -gr_clock_recovery_mm_cc_sptr gr_make_clock_recovery_mm_cc (float omega, float gain_omega, - float mu, float gain_mu, - float omega_relative_limit); - -class gr_clock_recovery_mm_cc : public gr_sync_block -{ - private: - gr_clock_recovery_mm_cc (float omega, float gain_omega, float mu, - float gain_mu, float omega_relative_limit); - -public: - float mu() const { return d_mu;} - float omega() const { return d_omega;} - float gain_mu() const { return d_gain_mu;} - float gain_omega() const { return d_gain_omega;} - - void set_gain_mu (float gain_mu) { d_gain_mu = gain_mu; } - void set_gain_omega (float gain_omega) { d_gain_omega = gain_omega; } - void set_mu (float omega) { d_mu = mu; } - void set_omega (float omega) { d_omega = omega; - d_min_omega = omega*(1.0 - d_omega_relative_limit); - d_max_omega = omega*(1.0 + d_omega_relative_limit); - } - void set_verbose (bool verbose) { d_verbose = verbose; } -}; diff --git a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.cc b/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.cc deleted file mode 100644 index bb5a27071..000000000 --- a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.cc +++ /dev/null @@ -1,137 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_io_signature.h> -#include <gr_clock_recovery_mm_ff.h> -#include <gri_mmse_fir_interpolator.h> -#include <stdexcept> - -#define DEBUG_CR_MM_FF 0 // must be defined as 0 or 1 - -// Public constructor - -gr_clock_recovery_mm_ff_sptr -gr_make_clock_recovery_mm_ff(float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit) -{ - return gnuradio::get_initial_sptr(new gr_clock_recovery_mm_ff (omega, - gain_omega, - mu, - gain_mu, - omega_relative_limit)); -} - -gr_clock_recovery_mm_ff::gr_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit) - : gr_block ("clock_recovery_mm_ff", - gr_make_io_signature (1, 1, sizeof (float)), - gr_make_io_signature (1, 1, sizeof (float))), - d_mu (mu), d_gain_omega(gain_omega), d_gain_mu(gain_mu), - d_last_sample(0), d_interp(new gri_mmse_fir_interpolator()), - d_logfile(0), d_omega_relative_limit(omega_relative_limit) -{ - if (omega < 1) - throw std::out_of_range ("clock rate must be > 0"); - if (gain_mu < 0 || gain_omega < 0) - throw std::out_of_range ("Gains must be non-negative"); - - set_omega(omega); // also sets min and max omega - set_relative_rate (1.0 / omega); - - if (DEBUG_CR_MM_FF) - d_logfile = fopen("cr_mm_ff.dat", "wb"); -} - -gr_clock_recovery_mm_ff::~gr_clock_recovery_mm_ff () -{ - delete d_interp; - - if (DEBUG_CR_MM_FF && d_logfile){ - fclose(d_logfile); - d_logfile = 0; - } -} - -void -gr_clock_recovery_mm_ff::forecast(int noutput_items, gr_vector_int &ninput_items_required) -{ - unsigned ninputs = ninput_items_required.size(); - for (unsigned i=0; i < ninputs; i++) - ninput_items_required[i] = - (int) ceil((noutput_items * d_omega) + d_interp->ntaps()); -} - -static inline float -slice(float x) -{ - return x < 0 ? -1.0F : 1.0F; -} - -/* - * This implements the Mueller and Müller (M&M) discrete-time error-tracking synchronizer. - * - * See "Digital Communication Receivers: Synchronization, Channel - * Estimation and Signal Processing" by Heinrich Meyr, Marc Moeneclaey, & Stefan Fechtel. - * ISBN 0-471-50275-8. - */ -int -gr_clock_recovery_mm_ff::general_work (int noutput_items, - gr_vector_int &ninput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) -{ - const float *in = (const float *) input_items[0]; - float *out = (float *) output_items[0]; - - int ii = 0; // input index - int oo = 0; // output index - int ni = ninput_items[0] - d_interp->ntaps(); // don't use more input than this - float mm_val; - - while (oo < noutput_items && ii < ni ){ - - // produce output sample - out[oo] = d_interp->interpolate (&in[ii], d_mu); - mm_val = slice(d_last_sample) * out[oo] - slice(out[oo]) * d_last_sample; - d_last_sample = out[oo]; - - d_omega = d_omega + d_gain_omega * mm_val; - d_omega = d_omega_mid + gr_branchless_clip(d_omega-d_omega_mid, d_omega_relative_limit); // make sure we don't walk away - d_mu = d_mu + d_omega + d_gain_mu * mm_val; - - ii += (int) floor(d_mu); - d_mu = d_mu - floor(d_mu); - oo++; - - if (DEBUG_CR_MM_FF && d_logfile){ - fwrite(&d_omega, sizeof(d_omega), 1, d_logfile); - } - } - - consume_each (ii); - - return oo; -} diff --git a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.h b/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.h deleted file mode 100644 index d2ec6d3e6..000000000 --- a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.h +++ /dev/null @@ -1,96 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004 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_CLOCK_RECOVERY_MM_FF_H -#define INCLUDED_GR_CLOCK_RECOVERY_MM_FF_H - -#include <gr_block.h> -#include <gr_math.h> -#include <stdio.h> - -class gri_mmse_fir_interpolator; - -class gr_clock_recovery_mm_ff; -typedef boost::shared_ptr<gr_clock_recovery_mm_ff> gr_clock_recovery_mm_ff_sptr; - -// public constructor -gr_clock_recovery_mm_ff_sptr -gr_make_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit=0.001); - -/*! - * \brief Mueller and Müller (M&M) based clock recovery block with float input, float output. - * \ingroup sync_blk - * - * This implements the Mueller and Müller (M&M) discrete-time error-tracking synchronizer. - * - * See "Digital Communication Receivers: Synchronization, Channel - * Estimation and Signal Processing" by Heinrich Meyr, Marc Moeneclaey, & Stefan Fechtel. - * ISBN 0-471-50275-8. - */ -class gr_clock_recovery_mm_ff : public gr_block -{ - public: - ~gr_clock_recovery_mm_ff (); - 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); - float mu() const { return d_mu;} - float omega() const { return d_omega;} - float gain_mu() const { return d_gain_mu;} - float gain_omega() const { return d_gain_omega;} - - void set_gain_mu (float gain_mu) { d_gain_mu = gain_mu; } - void set_gain_omega (float gain_omega) { d_gain_omega = gain_omega; } - void set_mu (float mu) { d_mu = mu; } - void set_omega (float omega){ - d_omega = omega; - d_min_omega = omega*(1.0 - d_omega_relative_limit); - d_max_omega = omega*(1.0 + d_omega_relative_limit); - d_omega_mid = 0.5*(d_min_omega+d_max_omega); - } - -protected: - gr_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit); - - private: - float d_mu; // fractional sample position [0.0, 1.0] - float d_omega; // nominal frequency - float d_min_omega; // minimum allowed omega - float d_omega_mid; // average omega - float d_max_omega; // maximum allowed omega - float d_gain_omega; // gain for adjusting omega - float d_gain_mu; // gain for adjusting mu - float d_last_sample; - gri_mmse_fir_interpolator *d_interp; - FILE *d_logfile; - float d_omega_relative_limit; // used to compute min and max omega - - friend gr_clock_recovery_mm_ff_sptr - gr_make_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.i b/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.i deleted file mode 100644 index 4f08aa760..000000000 --- a/gnuradio-core/src/lib/general/gr_clock_recovery_mm_ff.i +++ /dev/null @@ -1,45 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004 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(gr,clock_recovery_mm_ff); - -gr_clock_recovery_mm_ff_sptr gr_make_clock_recovery_mm_ff (float omega, float gain_omega, - float mu, float gain_mu, - float omega_relative_limit=0.001); - -class gr_clock_recovery_mm_ff : public gr_sync_block -{ - private: - gr_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu, - float omega_relative_limit); - -public: - float mu() const; - float omega() const; - float gain_mu() const; - float gain_omega() const; - - void set_gain_mu (float gain_mu); - void set_gain_omega (float gain_omega); - void set_mu (float omega); - void set_omega (float omega); -}; diff --git a/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.cc b/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.cc deleted file mode 100644 index 5b87f1430..000000000 --- a/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.cc +++ /dev/null @@ -1,114 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2006 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 <gr_constellation_decoder_cb.h> -#include <gr_io_signature.h> -#include <stdexcept> - -#include <cstdio> -#include <iostream> -using std::cout; -using std::endl; - -static const bool compute_EVM = false; - -gr_constellation_decoder_cb_sptr -gr_make_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out) -{ - return gr_constellation_decoder_cb_sptr - (new gr_constellation_decoder_cb(sym_position, sym_value_out)); -} - -gr_constellation_decoder_cb:: -gr_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out) - : gr_sync_block ("constellation_decoder_cb", - gr_make_io_signature (1, 1, sizeof (gr_complex)), - gr_make_io_signature (1, 1, sizeof (unsigned char))) -{ - if (!set_constellation(sym_position,sym_value_out)) - throw std::invalid_argument("constellation_decoder_cb"); -} - - -gr_constellation_decoder_cb::~gr_constellation_decoder_cb(){} - - -bool -gr_constellation_decoder_cb::set_constellation(const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out) -{ - if (sym_position.size() != sym_value_out.size()) - return false; - - if (sym_position.size()<1) - return false; - - d_sym_position = sym_position; - d_sym_value_out = sym_value_out; - return true; -} - - -int -gr_constellation_decoder_cb::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]; - unsigned char *out = (unsigned char *) output_items[0]; - unsigned int table_size = d_sym_value_out.size(); - unsigned int min_index = 0; - float min_euclid_dist = 0; - float euclid_dist = 0; - double total_error = 0; - - for(int i = 0; i < noutput_items; i++){ - min_euclid_dist = norm(in[i] - d_sym_position[0]); - min_index = 0; - for (unsigned int j = 1; j < table_size; j++){ - euclid_dist = norm(in[i] - d_sym_position[j]); - if (euclid_dist < min_euclid_dist){ - min_euclid_dist = euclid_dist; - min_index = j; - } - } - - out[i] = d_sym_value_out[min_index]; - - if (compute_EVM) - total_error += sqrtf(min_euclid_dist); - } - - if (compute_EVM){ - double mean = total_error / noutput_items; - double rms = sqrt(mean * mean); - fprintf(stderr, "EVM = %8.4f\n", rms); - } - - return noutput_items; -} diff --git a/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.h b/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.h deleted file mode 100644 index fd7079c12..000000000 --- a/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.h +++ /dev/null @@ -1,65 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2006 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_CONSTELLATION_DECODER_CB_H -#define INCLUDED_GR_CONSTELLATION_DECODER_CB_H - -#include <gr_sync_block.h> -#include <vector> - -class gr_constellation_decoder_cb; -typedef boost::shared_ptr<gr_constellation_decoder_cb> gr_constellation_decoder_cb_sptr; - -gr_constellation_decoder_cb_sptr - gr_make_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); - -/*! - * \brief Constellation Decoder - * \ingroup coding_blk - * - */ -class gr_constellation_decoder_cb : public gr_sync_block -{ - - private: - std::vector<gr_complex> d_sym_position; - std::vector<unsigned char> d_sym_value_out; - - friend gr_constellation_decoder_cb_sptr - gr_make_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, const std::vector<unsigned char> &sym_value_out); - - gr_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); //constructor - - public: - bool set_constellation(const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); - - ~gr_constellation_decoder_cb(); //destructor - - int work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.i b/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.i deleted file mode 100644 index 8d9c9b56e..000000000 --- a/gnuradio-core/src/lib/general/gr_constellation_decoder_cb.i +++ /dev/null @@ -1,43 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2006 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(gr,constellation_decoder_cb) - -gr_constellation_decoder_cb_sptr - gr_make_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); - -class gr_constellation_decoder_cb : public gr_sync_block -{ - private: - gr_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); - - friend gr_constellation_decoder_cb_sptr - gr_make_constellation_decoder_cb (const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); - - public: - int set_constellation(const std::vector<gr_complex> &sym_position, - const std::vector<unsigned char> &sym_value_out); - ~gr_constellation_decoder_cb(); -}; diff --git a/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.cc b/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.cc deleted file mode 100644 index 15f673411..000000000 --- a/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.cc +++ /dev/null @@ -1,133 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004,2006,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_correlate_access_code_bb.h> -#include <gr_io_signature.h> -#include <stdexcept> -#include <gr_count_bits.h> -#include <cstdio> - - -#define VERBOSE 0 - - -gr_correlate_access_code_bb_sptr -gr_make_correlate_access_code_bb (const std::string &access_code, int threshold) -{ - return gnuradio::get_initial_sptr(new gr_correlate_access_code_bb (access_code, threshold)); -} - - -gr_correlate_access_code_bb::gr_correlate_access_code_bb ( - const std::string &access_code, int threshold) - : gr_sync_block ("correlate_access_code_bb", - gr_make_io_signature (1, 1, sizeof(char)), - gr_make_io_signature (1, 1, sizeof(char))), - d_data_reg(0), d_flag_reg(0), d_flag_bit(0), d_mask(0), - d_threshold(threshold) - -{ - if (!set_access_code(access_code)){ - fprintf(stderr, "gr_correlate_access_code_bb: access_code is > 64 bits\n"); - throw std::out_of_range ("access_code is > 64 bits"); - } -} - -gr_correlate_access_code_bb::~gr_correlate_access_code_bb () -{ -} - -bool -gr_correlate_access_code_bb::set_access_code( - const std::string &access_code) -{ - unsigned len = access_code.length(); // # of bytes in string - if (len > 64) - return false; - - // set len top bits to 1. - d_mask = ((~0ULL) >> (64 - len)) << (64 - len); - - d_flag_bit = 1LL << (64 - len); // Where we or-in new flag values. - // new data always goes in 0x0000000000000001 - d_access_code = 0; - for (unsigned i=0; i < 64; i++){ - d_access_code <<= 1; - if (i < len) - d_access_code |= access_code[i] & 1; // look at LSB only - } - - return true; -} - -int -gr_correlate_access_code_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++){ - - // compute output value - unsigned int t = 0; - - t |= ((d_data_reg >> 63) & 0x1) << 0; - t |= ((d_flag_reg >> 63) & 0x1) << 1; // flag bit - out[i] = t; - - // 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); - -#if VERBOSE - if(new_flag) { - fprintf(stderr, "access code found: %llx\n", d_access_code); - } - else { - fprintf(stderr, "%llx ==> %llx\n", d_access_code, d_data_reg); - } -#endif - - // shift in new data and new flag - d_data_reg = (d_data_reg << 1) | (in[i] & 0x1); - d_flag_reg = (d_flag_reg << 1); - if (new_flag) { - d_flag_reg |= d_flag_bit; - } - } - - return noutput_items; -} - diff --git a/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.h b/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.h deleted file mode 100644 index 581713c14..000000000 --- a/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.h +++ /dev/null @@ -1,83 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005,2006 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_CORRELATE_ACCESS_CODE_BB_H -#define INCLUDED_GR_CORRELATE_ACCESS_CODE_BB_H - -#include <gr_sync_block.h> -#include <string> - -class gr_correlate_access_code_bb; -typedef boost::shared_ptr<gr_correlate_access_code_bb> gr_correlate_access_code_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 - */ -gr_correlate_access_code_bb_sptr -gr_make_correlate_access_code_bb (const std::string &access_code, int threshold); - -/*! - * \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: stream of bits, 2 bits per output byte (data in LSB, flag in next higher bit) - * - * Each output byte contains two valid bits, the data bit, and the - * flag bit. The LSB (bit 0) is the data bit, and is the original - * input data, delayed 64 bits. Bit 1 is the - * flag bit and is 1 if the corresponding data bit is the first data - * bit following the access code. Otherwise the flag bit is 0. - */ -class gr_correlate_access_code_bb : public gr_sync_block -{ - friend gr_correlate_access_code_bb_sptr - gr_make_correlate_access_code_bb (const std::string &access_code, int threshold); - 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_flag_reg; // keep track of decisions - unsigned long long d_flag_bit; // mask containing 1 bit which is location of new flag - 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 - - protected: - gr_correlate_access_code_bb(const std::string &access_code, int threshold); - - public: - ~gr_correlate_access_code_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_GR_CORRELATE_ACCESS_CODE_BB_H */ diff --git a/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.i b/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.i deleted file mode 100644 index bec4282f1..000000000 --- a/gnuradio-core/src/lib/general/gr_correlate_access_code_bb.i +++ /dev/null @@ -1,60 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2006 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(gr,correlate_access_code_bb); - -/*! - * \param access_code is represented with 1 byte per bit, e.g., "010101010111000100" - * \param threshold maximum number of bits that may be wrong - */ -gr_correlate_access_code_bb_sptr -gr_make_correlate_access_code_bb (const std::string &access_code, int threshold) - throw(std::out_of_range); - -/*! - * \brief Examine input for specified access code, one bit at a time. - * \ingroup block - * - * input: stream of bits, 1 bit per input byte (data in LSB) - * output: stream of bits, 2 bits per output byte (data in LSB, flag in next higher bit) - * - * Each output byte contains two valid bits, the data bit, and the - * flag bit. The LSB (bit 0) is the data bit, and is the original - * input data, delayed 64 bits. Bit 1 is the - * flag bit and is 1 if the corresponding data bit is the first data - * bit following the access code. Otherwise the flag bit is 0. - */ -class gr_correlate_access_code_bb : public gr_sync_block -{ - friend gr_correlate_access_code_bb_sptr - gr_make_correlate_access_code_bb (const std::string &access_code, int threshold); - protected: - gr_correlate_access_code_bb(const std::string &access_code, int threshold); - - public: - ~gr_correlate_access_code_bb(); - - /*! - * \param access_code is represented with 1 byte per bit, e.g., "010101010111000100" - */ - bool set_access_code (const std::string &access_code); -}; diff --git a/gnuradio-core/src/lib/general/gr_costas_loop_cc.cc b/gnuradio-core/src/lib/general/gr_costas_loop_cc.cc deleted file mode 100644 index f3bfd0951..000000000 --- a/gnuradio-core/src/lib/general/gr_costas_loop_cc.cc +++ /dev/null @@ -1,168 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2006,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_costas_loop_cc.h> -#include <gr_io_signature.h> -#include <gr_expj.h> -#include <gr_sincos.h> -#include <math.h> - -#define M_TWOPI (2*M_PI) - -gr_costas_loop_cc_sptr -gr_make_costas_loop_cc (float alpha, float beta, - float max_freq, float min_freq, - int order - ) throw (std::invalid_argument) -{ - return gnuradio::get_initial_sptr(new gr_costas_loop_cc (alpha, beta, - max_freq, min_freq, - order)); -} - -gr_costas_loop_cc::gr_costas_loop_cc (float alpha, float beta, - float max_freq, float min_freq, - int order - ) throw (std::invalid_argument) - : gr_sync_block ("costas_loop_cc", - gr_make_io_signature (1, 1, sizeof (gr_complex)), - gr_make_io_signature (1, 2, sizeof (gr_complex))), - d_alpha(alpha), d_beta(beta), - d_max_freq(max_freq), d_min_freq(min_freq), - d_phase(0), d_freq((max_freq+min_freq)/2), - d_order(order), d_phase_detector(0) -{ - switch(d_order) { - case 2: - d_phase_detector = &gr_costas_loop_cc::phase_detector_2; - break; - - case 4: - d_phase_detector = &gr_costas_loop_cc::phase_detector_4; - break; - - default: - throw std::invalid_argument("order must be 2 or 4"); - break; - } -} - - -float -gr_costas_loop_cc::phase_detector_4(gr_complex sample) const -{ - - return ((sample.real()>0 ? 1.0 : -1.0) * sample.imag() - - (sample.imag()>0 ? 1.0 : -1.0) * sample.real()); -} - -float -gr_costas_loop_cc::phase_detector_2(gr_complex sample) const -{ - return (sample.real()*sample.imag()); -} - -void -gr_costas_loop_cc::set_alpha(float alpha) -{ - d_alpha = alpha; -} - -void -gr_costas_loop_cc::set_beta(float beta) -{ - d_beta = beta; -} - -int -gr_costas_loop_cc::work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) -{ - const gr_complex *iptr = (gr_complex *) input_items[0]; - gr_complex *optr = (gr_complex *) output_items[0]; - gr_complex *foptr = (gr_complex *) output_items[1]; - - bool write_foptr = output_items.size() >= 2; - - float error; - gr_complex nco_out; - - if (write_foptr) { - - for (int i = 0; i < noutput_items; i++){ - nco_out = gr_expj(-d_phase); - optr[i] = iptr[i] * nco_out; - - error = (*this.*d_phase_detector)(optr[i]); - if (error > 1) - error = 1; - else if (error < -1) - error = -1; - - d_freq = d_freq + d_beta * error; - d_phase = d_phase + d_freq + d_alpha * error; - - while(d_phase>M_TWOPI) - d_phase -= M_TWOPI; - while(d_phase<-M_TWOPI) - d_phase += M_TWOPI; - - if (d_freq > d_max_freq) - d_freq = d_max_freq; - else if (d_freq < d_min_freq) - d_freq = d_min_freq; - - foptr[i] = gr_complex(d_freq,0); - } - } else { - for (int i = 0; i < noutput_items; i++){ - nco_out = gr_expj(-d_phase); - optr[i] = iptr[i] * nco_out; - - error = (*this.*d_phase_detector)(optr[i]); - if (error > 1) - error = 1; - else if (error < -1) - error = -1; - - d_freq = d_freq + d_beta * error; - d_phase = d_phase + d_freq + d_alpha * error; - - while(d_phase>M_TWOPI) - d_phase -= M_TWOPI; - while(d_phase<-M_TWOPI) - d_phase += M_TWOPI; - - if (d_freq > d_max_freq) - d_freq = d_max_freq; - else if (d_freq < d_min_freq) - d_freq = d_min_freq; - - } - } - return noutput_items; -} diff --git a/gnuradio-core/src/lib/general/gr_costas_loop_cc.h b/gnuradio-core/src/lib/general/gr_costas_loop_cc.h deleted file mode 100644 index 3b4aab86c..000000000 --- a/gnuradio-core/src/lib/general/gr_costas_loop_cc.h +++ /dev/null @@ -1,139 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2006 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_COSTAS_LOOP_CC_H -#define INCLUDED_GR_COSTAS_LOOP_CC_H - -#include <gr_sync_block.h> -#include <stdexcept> -#include <fstream> - - -/*! \brief A Costas loop carrier recovery module. - * \ingroup sync_blk - * - * The Costas loop locks to the center frequency of a signal and - * downconverts it to baseband. The second (order=2) order loop is - * used for BPSK where the real part of the output signal is the - * baseband BPSK signal and the imaginary part is the error - * signal. When order=4, it can be used for quadrature modulations - * where both I and Q (real and imaginary) are outputted. - * - * More details can be found online: - * - * J. Feigin, "Practical Costas loop design: Designing a simple and inexpensive - * BPSK Costas loop carrier recovery circuit," RF signal processing, pp. 20-36, - * 2002. - * - * http://rfdesign.com/images/archive/0102Feigin20.pdf - * - * \param alpha the loop gain used for phase adjustment - * \param beta the loop gain for frequency adjustments - * \param max_freq the maximum frequency deviation (radians/sample) the loop can handle - * \param min_freq the minimum frequency deviation (radians/sample) the loop can handle - * \param order the loop order, either 2 or 4 - */ -class gr_costas_loop_cc; -typedef boost::shared_ptr<gr_costas_loop_cc> gr_costas_loop_cc_sptr; - - -gr_costas_loop_cc_sptr -gr_make_costas_loop_cc (float alpha, float beta, - float max_freq, float min_freq, - int order - ) throw (std::invalid_argument); - - -/*! - * \brief Carrier tracking PLL for QPSK - * \ingroup sync_blk - * input: complex; output: complex - * <br>The Costas loop can have two output streams: - * stream 1 is the baseband I and Q; - * stream 2 is the normalized frequency of the loop - * - * \p order must be 2 or 4. - */ -class gr_costas_loop_cc : public gr_sync_block -{ - friend gr_costas_loop_cc_sptr gr_make_costas_loop_cc (float alpha, float beta, - float max_freq, float min_freq, - int order - ) throw (std::invalid_argument); - - float d_alpha, d_beta, d_max_freq, d_min_freq, d_phase, d_freq; - int d_order; - - gr_costas_loop_cc (float alpha, float beta, - float max_freq, float min_freq, - int order - ) throw (std::invalid_argument); - - /*! \brief the phase detector circuit for fourth-order loops - * \param sample complex sample - * \return the phase error - */ - float phase_detector_4(gr_complex sample) const; // for QPSK - - /*! \brief the phase detector circuit for second-order loops - * \param sample a complex sample - * \return the phase error - */ - float phase_detector_2(gr_complex sample) const; // for BPSK - - - float (gr_costas_loop_cc::*d_phase_detector)(gr_complex sample) const; - -public: - - /*! \brief set the first order gain - * \param alpha - */ - void set_alpha(float alpha); - - /*! \brief get the first order gain - * - */ - float alpha() const { return d_alpha; } - - /*! \brief set the second order gain - * \param beta - */ - void set_beta(float beta); - - /*! \brief get the second order gain - * - */ - float beta() const { return d_beta; } - - int work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - - /*! \brief returns the current NCO frequency in radians/sample - * - */ - float freq() const { return d_freq; } -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_crc32.cc b/gnuradio-core/src/lib/general/gr_crc32.cc deleted file mode 100644 index d4e843528..000000000 --- a/gnuradio-core/src/lib/general/gr_crc32.cc +++ /dev/null @@ -1,130 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005 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. - */ - -/* - * See also ISO 3309 [ISO-3309] or ITU-T V.42 [ITU-V42] for a formal specification. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <gr_crc32.h> - - -// Automatically generated CRC function -// polynomial: 0x104C11DB7 -unsigned int -gr_update_crc32(unsigned int crc, const unsigned char *data, size_t len) -{ - static const unsigned int table[256] = { - 0x00000000U,0x04C11DB7U,0x09823B6EU,0x0D4326D9U, - 0x130476DCU,0x17C56B6BU,0x1A864DB2U,0x1E475005U, - 0x2608EDB8U,0x22C9F00FU,0x2F8AD6D6U,0x2B4BCB61U, - 0x350C9B64U,0x31CD86D3U,0x3C8EA00AU,0x384FBDBDU, - 0x4C11DB70U,0x48D0C6C7U,0x4593E01EU,0x4152FDA9U, - 0x5F15ADACU,0x5BD4B01BU,0x569796C2U,0x52568B75U, - 0x6A1936C8U,0x6ED82B7FU,0x639B0DA6U,0x675A1011U, - 0x791D4014U,0x7DDC5DA3U,0x709F7B7AU,0x745E66CDU, - 0x9823B6E0U,0x9CE2AB57U,0x91A18D8EU,0x95609039U, - 0x8B27C03CU,0x8FE6DD8BU,0x82A5FB52U,0x8664E6E5U, - 0xBE2B5B58U,0xBAEA46EFU,0xB7A96036U,0xB3687D81U, - 0xAD2F2D84U,0xA9EE3033U,0xA4AD16EAU,0xA06C0B5DU, - 0xD4326D90U,0xD0F37027U,0xDDB056FEU,0xD9714B49U, - 0xC7361B4CU,0xC3F706FBU,0xCEB42022U,0xCA753D95U, - 0xF23A8028U,0xF6FB9D9FU,0xFBB8BB46U,0xFF79A6F1U, - 0xE13EF6F4U,0xE5FFEB43U,0xE8BCCD9AU,0xEC7DD02DU, - 0x34867077U,0x30476DC0U,0x3D044B19U,0x39C556AEU, - 0x278206ABU,0x23431B1CU,0x2E003DC5U,0x2AC12072U, - 0x128E9DCFU,0x164F8078U,0x1B0CA6A1U,0x1FCDBB16U, - 0x018AEB13U,0x054BF6A4U,0x0808D07DU,0x0CC9CDCAU, - 0x7897AB07U,0x7C56B6B0U,0x71159069U,0x75D48DDEU, - 0x6B93DDDBU,0x6F52C06CU,0x6211E6B5U,0x66D0FB02U, - 0x5E9F46BFU,0x5A5E5B08U,0x571D7DD1U,0x53DC6066U, - 0x4D9B3063U,0x495A2DD4U,0x44190B0DU,0x40D816BAU, - 0xACA5C697U,0xA864DB20U,0xA527FDF9U,0xA1E6E04EU, - 0xBFA1B04BU,0xBB60ADFCU,0xB6238B25U,0xB2E29692U, - 0x8AAD2B2FU,0x8E6C3698U,0x832F1041U,0x87EE0DF6U, - 0x99A95DF3U,0x9D684044U,0x902B669DU,0x94EA7B2AU, - 0xE0B41DE7U,0xE4750050U,0xE9362689U,0xEDF73B3EU, - 0xF3B06B3BU,0xF771768CU,0xFA325055U,0xFEF34DE2U, - 0xC6BCF05FU,0xC27DEDE8U,0xCF3ECB31U,0xCBFFD686U, - 0xD5B88683U,0xD1799B34U,0xDC3ABDEDU,0xD8FBA05AU, - 0x690CE0EEU,0x6DCDFD59U,0x608EDB80U,0x644FC637U, - 0x7A089632U,0x7EC98B85U,0x738AAD5CU,0x774BB0EBU, - 0x4F040D56U,0x4BC510E1U,0x46863638U,0x42472B8FU, - 0x5C007B8AU,0x58C1663DU,0x558240E4U,0x51435D53U, - 0x251D3B9EU,0x21DC2629U,0x2C9F00F0U,0x285E1D47U, - 0x36194D42U,0x32D850F5U,0x3F9B762CU,0x3B5A6B9BU, - 0x0315D626U,0x07D4CB91U,0x0A97ED48U,0x0E56F0FFU, - 0x1011A0FAU,0x14D0BD4DU,0x19939B94U,0x1D528623U, - 0xF12F560EU,0xF5EE4BB9U,0xF8AD6D60U,0xFC6C70D7U, - 0xE22B20D2U,0xE6EA3D65U,0xEBA91BBCU,0xEF68060BU, - 0xD727BBB6U,0xD3E6A601U,0xDEA580D8U,0xDA649D6FU, - 0xC423CD6AU,0xC0E2D0DDU,0xCDA1F604U,0xC960EBB3U, - 0xBD3E8D7EU,0xB9FF90C9U,0xB4BCB610U,0xB07DABA7U, - 0xAE3AFBA2U,0xAAFBE615U,0xA7B8C0CCU,0xA379DD7BU, - 0x9B3660C6U,0x9FF77D71U,0x92B45BA8U,0x9675461FU, - 0x8832161AU,0x8CF30BADU,0x81B02D74U,0x857130C3U, - 0x5D8A9099U,0x594B8D2EU,0x5408ABF7U,0x50C9B640U, - 0x4E8EE645U,0x4A4FFBF2U,0x470CDD2BU,0x43CDC09CU, - 0x7B827D21U,0x7F436096U,0x7200464FU,0x76C15BF8U, - 0x68860BFDU,0x6C47164AU,0x61043093U,0x65C52D24U, - 0x119B4BE9U,0x155A565EU,0x18197087U,0x1CD86D30U, - 0x029F3D35U,0x065E2082U,0x0B1D065BU,0x0FDC1BECU, - 0x3793A651U,0x3352BBE6U,0x3E119D3FU,0x3AD08088U, - 0x2497D08DU,0x2056CD3AU,0x2D15EBE3U,0x29D4F654U, - 0xC5A92679U,0xC1683BCEU,0xCC2B1D17U,0xC8EA00A0U, - 0xD6AD50A5U,0xD26C4D12U,0xDF2F6BCBU,0xDBEE767CU, - 0xE3A1CBC1U,0xE760D676U,0xEA23F0AFU,0xEEE2ED18U, - 0xF0A5BD1DU,0xF464A0AAU,0xF9278673U,0xFDE69BC4U, - 0x89B8FD09U,0x8D79E0BEU,0x803AC667U,0x84FBDBD0U, - 0x9ABC8BD5U,0x9E7D9662U,0x933EB0BBU,0x97FFAD0CU, - 0xAFB010B1U,0xAB710D06U,0xA6322BDFU,0xA2F33668U, - 0xBCB4666DU,0xB8757BDAU,0xB5365D03U,0xB1F740B4U, - }; - - while (len > 0) - { - crc = table[*data ^ ((crc >> 24) & 0xff)] ^ (crc << 8); - data++; - len--; - } - return crc; -} - -unsigned int -gr_update_crc32(unsigned int crc, const std::string s) -{ - return gr_update_crc32(crc, (const unsigned char *) s.data(), s.size()); -} - -unsigned int -gr_crc32(const unsigned char *buf, size_t len) -{ - return gr_update_crc32(0xffffffff, buf, len) ^ 0xffffffff; -} - -unsigned int -gr_crc32(const std::string s) -{ - return gr_crc32((const unsigned char *) s.data(), s.size()); -} diff --git a/gnuradio-core/src/lib/general/gr_crc32.h b/gnuradio-core/src/lib/general/gr_crc32.h deleted file mode 100644 index 87a8d15f2..000000000 --- a/gnuradio-core/src/lib/general/gr_crc32.h +++ /dev/null @@ -1,50 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005 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_CRC32_H -#define INCLUDED_GR_CRC32_H - -#include <string> -#include <gr_types.h> - -/*! - * \brief update running CRC-32 - * \ingroup misc - * - * Update a running CRC with the bytes buf[0..len-1] The CRC should be - * initialized to all 1's, and the transmitted value is the 1's - * complement of the final running CRC. The resulting CRC should be - * transmitted in big endian order. - */ -unsigned int -gr_update_crc32(unsigned int crc, const unsigned char *buf, size_t len); - -unsigned int -gr_update_crc32(unsigned int crc, const std::string buf); - -unsigned int -gr_crc32(const unsigned char *buf, size_t len); - -unsigned int -gr_crc32(const std::string buf); - -#endif /* INCLUDED_CRC32_H */ diff --git a/gnuradio-core/src/lib/general/gr_decode_ccsds_27_fb.cc b/gnuradio-core/src/lib/general/gr_decode_ccsds_27_fb.cc index d5425bfc8..c5e1320a3 100644 --- a/gnuradio-core/src/lib/general/gr_decode_ccsds_27_fb.cc +++ b/gnuradio-core/src/lib/general/gr_decode_ccsds_27_fb.cc @@ -39,7 +39,7 @@ gr_decode_ccsds_27_fb::gr_decode_ccsds_27_fb() { float RATE = 0.5; float ebn0 = 12.0; - float esn0 = RATE*pow(10.0, ebn0/10); + float esn0 = RATE*pow(10.0, ebn0/10.0); gen_met(d_mettab, 100, esn0, 0.0, 256); viterbi_chunks_init(d_state0); diff --git a/gnuradio-core/src/lib/general/gr_feval.i b/gnuradio-core/src/lib/general/gr_feval.i index 8594a6fa1..c5522805d 100644 --- a/gnuradio-core/src/lib/general/gr_feval.i +++ b/gnuradio-core/src/lib/general/gr_feval.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2006 Free Software Foundation, Inc. + * Copyright 2006,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -43,6 +43,9 @@ */ +// Directors are only supported in Python, Java and C# +#ifdef SWIGPYTHON + // Enable SWIG directors for these classes %feature("director") gr_py_feval_dd; %feature("director") gr_py_feval_cc; @@ -197,3 +200,5 @@ long gr_feval_ll_example(gr_feval_ll *f, long x); %rename(feval_example) gr_feval_example; void gr_feval_example(gr_feval *f); + +#endif // SWIGPYTHON diff --git a/gnuradio-core/src/lib/general/gr_fft_vcc.i b/gnuradio-core/src/lib/general/gr_fft_vcc.i index 247571374..f35316e70 100644 --- a/gnuradio-core/src/lib/general/gr_fft_vcc.i +++ b/gnuradio-core/src/lib/general/gr_fft_vcc.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004,2007,2008 Free Software Foundation, Inc. + * Copyright 2004,2007,2008,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -23,7 +23,7 @@ GR_SWIG_BLOCK_MAGIC(gr, fft_vcc) gr_fft_vcc_sptr -gr_make_fft_vcc (int fft_size, bool forward, const std::vector<float> window, bool shift=false); +gr_make_fft_vcc (int fft_size, bool forward, const std::vector<float> &window, bool shift=false); class gr_fft_vcc : public gr_sync_block { diff --git a/gnuradio-core/src/lib/general/gr_fft_vfc.cc b/gnuradio-core/src/lib/general/gr_fft_vfc.cc index 608161efe..561c63740 100644 --- a/gnuradio-core/src/lib/general/gr_fft_vfc.cc +++ b/gnuradio-core/src/lib/general/gr_fft_vfc.cc @@ -40,12 +40,12 @@ gr_fft_vfc_sptr -gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float> window) +gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float> &window) { return gnuradio::get_initial_sptr(new gr_fft_vfc (fft_size, forward, window)); } -gr_fft_vfc::gr_fft_vfc (int fft_size, bool forward, const std::vector<float> window) +gr_fft_vfc::gr_fft_vfc (int fft_size, bool forward, const std::vector<float> &window) : gr_sync_block ("fft_vfc", gr_make_io_signature (1, 1, fft_size * sizeof (float)), gr_make_io_signature (1, 1, fft_size * sizeof (gr_complex))), @@ -107,7 +107,7 @@ gr_fft_vfc::work (int noutput_items, } bool -gr_fft_vfc::set_window(const std::vector<float> window) +gr_fft_vfc::set_window(const std::vector<float> &window) { if(window.size()==0 || window.size()==d_fft_size) { d_window=window; diff --git a/gnuradio-core/src/lib/general/gr_fft_vfc.h b/gnuradio-core/src/lib/general/gr_fft_vfc.h index 054a383ef..074574477 100644 --- a/gnuradio-core/src/lib/general/gr_fft_vfc.h +++ b/gnuradio-core/src/lib/general/gr_fft_vfc.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -31,7 +31,7 @@ class gr_fft_vfc; typedef boost::shared_ptr<gr_fft_vfc> gr_fft_vfc_sptr; gr_fft_vfc_sptr -gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float>); +gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float> &window); /*! * \brief Compute forward FFT. float vector in / complex vector out. @@ -41,13 +41,13 @@ gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float>); class gr_fft_vfc : public gr_sync_block { friend gr_fft_vfc_sptr - gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float> window); + gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float> &window); unsigned int d_fft_size; std::vector<float> d_window; gri_fft_complex *d_fft; - gr_fft_vfc (int fft_size, bool forward, const std::vector<float> window); + gr_fft_vfc (int fft_size, bool forward, const std::vector<float> &window); public: ~gr_fft_vfc (); @@ -55,7 +55,7 @@ class gr_fft_vfc : public gr_sync_block int work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items); - bool set_window(const std::vector<float> window); + bool set_window(const std::vector<float> &window); }; diff --git a/gnuradio-core/src/lib/general/gr_fft_vfc.i b/gnuradio-core/src/lib/general/gr_fft_vfc.i index 90c368fe6..149745b58 100644 --- a/gnuradio-core/src/lib/general/gr_fft_vfc.i +++ b/gnuradio-core/src/lib/general/gr_fft_vfc.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -23,13 +23,14 @@ GR_SWIG_BLOCK_MAGIC(gr, fft_vfc) gr_fft_vfc_sptr -gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float> window); +gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float> &window) +throw(std::exception); class gr_fft_vfc : public gr_sync_block { protected: - gr_fft_vfc (int fft_size, bool forward, const std::vector<float> window); + gr_fft_vfc (int fft_size, bool forward, const std::vector<float> &window); public: - bool set_window(const std::vector<float> window); + bool set_window(const std::vector<float> &window); }; diff --git a/gnuradio-core/src/lib/general/gr_firdes.cc b/gnuradio-core/src/lib/general/gr_firdes.cc index 8efeb3438..5d192d67e 100644 --- a/gnuradio-core/src/lib/general/gr_firdes.cc +++ b/gnuradio-core/src/lib/general/gr_firdes.cc @@ -574,7 +574,7 @@ gr_firdes::gaussian (double gain, vector<float> taps(ntaps); double scale = 0; double dt = 1.0/spb; - double s = 1.0/(sqrt(log(2)) / (2*M_PI*bt)); + double s = 1.0/(sqrt(log(2.0)) / (2*M_PI*bt)); double t0 = -0.5 * ntaps; double ts; for(int i=0;i<ntaps;i++) diff --git a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.cc b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.cc deleted file mode 100644 index c32398e6d..000000000 --- a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.cc +++ /dev/null @@ -1,214 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2009,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_fll_band_edge_cc.h> -#include <gr_fir_ccc.h> -#include <gr_fir_util.h> -#include <gri_fft.h> -#include <gr_io_signature.h> -#include <gr_expj.h> -#include <gr_math.h> -#include <cstdio> - -#define M_TWOPI (2*M_PI) - -float sinc(float x) -{ - if(x == 0) - return 1; - else - return sin(M_PI*x)/(M_PI*x); -} - - - -gr_fll_band_edge_cc_sptr gr_make_fll_band_edge_cc (float samps_per_sym, float rolloff, - int filter_size, float gain_alpha, float gain_beta) -{ - return gnuradio::get_initial_sptr(new gr_fll_band_edge_cc (samps_per_sym, rolloff, - filter_size, gain_alpha, gain_beta)); -} - - -static int ios[] = {sizeof(gr_complex), sizeof(float), sizeof(float), sizeof(gr_complex)}; -static std::vector<int> iosig(ios, ios+sizeof(ios)/sizeof(int)); -gr_fll_band_edge_cc::gr_fll_band_edge_cc (float samps_per_sym, float rolloff, - int filter_size, float alpha, float beta) - : gr_sync_block ("fll_band_edge_cc", - gr_make_io_signature (1, 1, sizeof(gr_complex)), - gr_make_io_signaturev (1, 4, iosig)), - d_alpha(alpha), d_beta(beta), d_updated (false) -{ - // base this on the number of samples per symbol - d_max_freq = M_TWOPI * (2.0/samps_per_sym); - d_min_freq = -M_TWOPI * (2.0/samps_per_sym); - - d_freq = 0; - d_phase = 0; - - set_alpha(alpha); - - design_filter(samps_per_sym, rolloff, filter_size); -} - -gr_fll_band_edge_cc::~gr_fll_band_edge_cc () -{ - delete d_filter_lower; - delete d_filter_upper; -} - -void -gr_fll_band_edge_cc::set_alpha(float alpha) -{ - //float eta = sqrt(2.0)/2.0; - //float theta = alpha; - //d_alpha = (4*eta*theta) / (1.0 + 2.0*eta*theta + theta*theta); - //d_beta = (4*theta*theta) / (1.0 + 2.0*eta*theta + theta*theta); - d_alpha = alpha; -} - -void -gr_fll_band_edge_cc::design_filter(float samps_per_sym, float rolloff, int filter_size) -{ - int M = rint(filter_size / samps_per_sym); - float power = 0; - std::vector<float> bb_taps; - for(int i = 0; i < filter_size; i++) { - float k = -M + i*2.0/samps_per_sym; - float tap = sinc(rolloff*k - 0.5) + sinc(rolloff*k + 0.5); - power += tap; - - bb_taps.push_back(tap); - } - - int N = (bb_taps.size() - 1.0)/2.0; - std::vector<gr_complex> taps_lower; - std::vector<gr_complex> taps_upper; - for(unsigned int i = 0; i < bb_taps.size(); i++) { - float tap = bb_taps[i] / power; - - float k = (-N + (int)i)/(2.0*samps_per_sym); - - gr_complex t1 = tap * gr_expj(-2*M_PI*(1+rolloff)*k); - gr_complex t2 = tap * gr_expj(2*M_PI*(1+rolloff)*k); - - taps_lower.push_back(t1); - taps_upper.push_back(t2); - } - - std::vector<gr_complex> vtaps(0, taps_lower.size()); - d_filter_upper = gr_fir_util::create_gr_fir_ccc(vtaps); - d_filter_lower = gr_fir_util::create_gr_fir_ccc(vtaps); - - d_filter_lower->set_taps(taps_lower); - d_filter_upper->set_taps(taps_upper); - - d_updated = true; - - // Set the history to ensure enough input items for each filter - set_history(filter_size+1); - -} - -void -gr_fll_band_edge_cc::print_taps() -{ - unsigned int i; - std::vector<gr_complex> taps_upper = d_filter_upper->get_taps(); - std::vector<gr_complex> taps_lower = d_filter_lower->get_taps(); - - printf("Upper Band-edge: ["); - for(i = 0; i < taps_upper.size(); i++) { - printf(" %.4e + %.4ej,", taps_upper[i].real(), taps_upper[i].imag()); - } - printf("]\n\n"); - - printf("Lower Band-edge: ["); - for(i = 0; i < taps_lower.size(); i++) { - printf(" %.4e + %.4ej,", taps_lower[i].real(), taps_lower[i].imag()); - } - printf("]\n\n"); -} - -int -gr_fll_band_edge_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]; - - float *frq = NULL; - float *phs = NULL; - gr_complex *err = NULL; - if(output_items.size() > 2) { - frq = (float *) output_items[1]; - phs = (float *) output_items[2]; - err = (gr_complex *) output_items[3]; - } - - if (d_updated) { - d_updated = false; - return 0; // history requirements may have changed. - } - - int i; - gr_complex nco_out; - gr_complex out_upper, out_lower; - float error; - float avg_k = 0.1; - for(i = 0; i < noutput_items; i++) { - nco_out = gr_expj(d_phase); - out[i] = in[i] * nco_out; - - out_upper = (d_filter_upper->filter(&out[i])); - out_lower = (d_filter_lower->filter(&out[i])); - error = -real((out_upper + out_lower) * conj(out_upper - out_lower)); - d_error = avg_k*error + avg_k*d_error; // average error - - d_freq = d_freq + d_beta * d_error; - d_phase = d_phase + d_freq + d_alpha * d_error; - - if(d_phase > M_PI) - d_phase -= M_TWOPI; - else if(d_phase < -M_PI) - d_phase += M_TWOPI; - - if (d_freq > d_max_freq) - d_freq = d_max_freq; - else if (d_freq < d_min_freq) - d_freq = d_min_freq; - - if(output_items.size() > 2) { - frq[i] = d_freq; - phs[i] = d_phase; - err[i] = d_error; - } - } - - - return noutput_items; -} diff --git a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.h b/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.h deleted file mode 100644 index db060793e..000000000 --- a/gnuradio-core/src/lib/general/gr_fll_band_edge_cc.h +++ /dev/null @@ -1,139 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2009 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_FLL_BAND_EDGE_CC_H -#define INCLUDED_GR_FLL_BAND_EDGE_CC_H - -#include <gr_sync_block.h> - -class gr_fll_band_edge_cc; -typedef boost::shared_ptr<gr_fll_band_edge_cc> gr_fll_band_edge_cc_sptr; -gr_fll_band_edge_cc_sptr gr_make_fll_band_edge_cc (float samps_per_sym, float rolloff, - int filter_size, float alpha, float beta); - -class gr_fir_ccc; -class gri_fft_complex; - -/*! - * \class gr_fll_band_edge_cc - * \brief Frequency Lock Loop using band-edge filters - * - * \ingroup general - * - * The frequency lock loop derives a band-edge filter that covers the upper and lower bandwidths - * of a digitally-modulated signal. The bandwidth range is determined by the excess bandwidth - * (e.g., rolloff factor) of the modulated signal. The placement in frequency of the band-edges - * is determined by the oversampling ratio (number of samples per symbol) and the excess bandwidth. - * The size of the filters should be fairly large so as to average over a number of symbols. - * - * The FLL works by filtering the upper and lower band edges into x_u(t) and x_l(t), respectively. - * These are combined to form cc(t) = x_u(t) + x_l(t) and ss(t) = x_u(t) - x_l(t). Combining - * these to form the signal e(t) = Re{cc(t) \\times ss(t)^*} (where ^* is the complex conjugate) - * provides an error signal at the DC term that is directly proportional to the carrier frequency. - * We then make a second-order loop using the error signal that is the running average of e(t). - * - * In theory, the band-edge filter is the derivative of the matched filter in frequency, - * (H_be(f) = \\frac{H(f)}{df}. In practice, this comes down to a quarter sine wave at the point - * of the matched filter's rolloff (if it's a raised-cosine, the derivative of a cosine is a sine). - * Extend this sine by another quarter wave to make a half wave around the band-edges is equivalent - * in time to the sum of two sinc functions. The baseband filter fot the band edges is therefore - * derived from this sum of sincs. The band edge filters are then just the baseband signal - * modulated to the correct place in frequency. All of these calculations are done in the - * 'design_filter' function. - * - * Note: We use FIR filters here because the filters have to have a flat phase response over the - * entire frequency range to allow their comparisons to be valid. - */ - -class gr_fll_band_edge_cc : public gr_sync_block -{ - private: - /*! - * Build the FLL - * \param samps_per_sym (float) Number of samples per symbol of signal - * \param rolloff (float) Rolloff factor of signal - * \param filter_size (int) Size (in taps) of the filter - * \param alpha (float) Loop gain 1 - * \param beta (float) Loop gain 2 - */ - friend gr_fll_band_edge_cc_sptr gr_make_fll_band_edge_cc (float samps_per_sym, float rolloff, - int filter_size, float alpha, float beta); - - float d_alpha; - float d_beta; - float d_max_freq; - float d_min_freq; - - gr_fir_ccc* d_filter_upper; - gr_fir_ccc* d_filter_lower; - bool d_updated; - float d_error; - float d_freq; - float d_phase; - - /*! - * Build the FLL - * \param samps_per_sym (float) number of samples per symbol - * \param rolloff (float) Rolloff (excess bandwidth) of signal filter - * \param filter_size (int) number of filter taps to generate - * \param alpha (float) Alpha gain in the control loop - * \param beta (float) Beta gain in the control loop - */ - gr_fll_band_edge_cc(float samps_per_sym, float rolloff, - int filter_size, float alpha, float beta); - -public: - ~gr_fll_band_edge_cc (); - - /*! - * Design the band-edge filter based on the number of samples per symbol, - * filter rolloff factor, and the filter size - * \param samps_per_sym (float) Number of samples per symbol of signal - * \param rolloff (float) Rolloff factor of signal - * \param filter_size (int) Size (in taps) of the filter - */ - void design_filter(float samps_per_sym, float rolloff, int filter_size); - - /*! - * Set the alpha gainvalue - * \param alpha (float) new gain value - */ - void set_alpha(float alpha); - - /*! - * Set the beta gain value - * \param beta (float) new gain value - */ - void set_beta(float beta) { d_beta = beta; } - - /*! - * Print the taps to screen. - */ - void print_taps(); - - int work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.cc b/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.cc index 0f6f0d719..bff22be25 100644 --- a/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.cc +++ b/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004,2010 Free Software Foundation, Inc. + * Copyright 2004,2010,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -28,6 +28,7 @@ #include <gr_io_signature.h> #include <gr_sincos.h> #include <math.h> +#include <boost/math/special_functions/trunc.hpp> gr_frequency_modulator_fc_sptr gr_make_frequency_modulator_fc (double sensitivity) @@ -62,7 +63,7 @@ gr_frequency_modulator_fc::work (int noutput_items, // to avoid loss of precision in the addition above. if (fabs (d_phase) > 16 * M_PI){ - double ii = trunc (d_phase / (2 * M_PI)); + double ii = boost::math::trunc (d_phase / (2 * M_PI)); d_phase = d_phase - (ii * 2 * M_PI); } diff --git a/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.h b/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.h index 4ba05d709..385f447b7 100644 --- a/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.h +++ b/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.h @@ -47,7 +47,9 @@ class gr_frequency_modulator_fc : public gr_sync_block gr_frequency_modulator_fc (double sensitivity); public: - + void set_sensitivity(float sens) { d_sensitivity = sens; } + float sensitivity() const { return d_sensitivity; } + int work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items); diff --git a/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.i b/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.i index 612b59026..7dfb82f1f 100644 --- a/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.i +++ b/gnuradio-core/src/lib/general/gr_frequency_modulator_fc.i @@ -28,4 +28,7 @@ class gr_frequency_modulator_fc : public gr_sync_block { private: gr_frequency_modulator_fc (double sensitivity); +public: + void set_sensitivity(float sens) { d_sensitivity = sens; } + float sensitivity() const { return d_sensitivity; } }; diff --git a/gnuradio-core/src/lib/general/gr_fxpt.cc b/gnuradio-core/src/lib/general/gr_fxpt.cc index e752364a5..fae02c71e 100644 --- a/gnuradio-core/src/lib/general/gr_fxpt.cc +++ b/gnuradio-core/src/lib/general/gr_fxpt.cc @@ -30,9 +30,8 @@ const float gr_fxpt::s_sine_table[1 << NBITS][2] = { #include "sine_table.h" }; -// gcc 4.x fix -const float gr_fxpt::TWO_TO_THE_31; -const float gr_fxpt::PI; +const float gr_fxpt::PI = 3.14159265358979323846; +const float gr_fxpt::TWO_TO_THE_31 = 2147483648.0; #if 0 /* diff --git a/gnuradio-core/src/lib/general/gr_fxpt.h b/gnuradio-core/src/lib/general/gr_fxpt.h index 520729f8d..c98d31b27 100644 --- a/gnuradio-core/src/lib/general/gr_fxpt.h +++ b/gnuradio-core/src/lib/general/gr_fxpt.h @@ -40,8 +40,8 @@ class gr_fxpt static const int WORDBITS = 32; static const int NBITS = 10; static const float s_sine_table[1 << NBITS][2]; - static const float PI = 3.14159265358979323846; - static const float TWO_TO_THE_31 = 2147483648.0; + static const float PI; + static const float TWO_TO_THE_31; public: static gr_int32 diff --git a/gnuradio-core/src/lib/general/gr_binary_slicer_fb.cc b/gnuradio-core/src/lib/general/gr_int_to_float.cc index ae8903abb..b5a19e5c0 100644 --- a/gnuradio-core/src/lib/general/gr_binary_slicer_fb.cc +++ b/gnuradio-core/src/lib/general/gr_int_to_float.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2006,2010 Free Software Foundation, Inc. + * Copyright 2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -24,41 +24,36 @@ #include "config.h" #endif -#include <gr_binary_slicer_fb.h> +#include <gr_int_to_float.h> #include <gr_io_signature.h> -#include <stdexcept> -gr_binary_slicer_fb_sptr -gr_make_binary_slicer_fb () +gr_int_to_float_sptr +gr_make_int_to_float () { - return gnuradio::get_initial_sptr(new gr_binary_slicer_fb ()); + return gnuradio::get_initial_sptr(new gr_int_to_float ()); } -gr_binary_slicer_fb::gr_binary_slicer_fb () - : gr_sync_block ("binary_slicer_fb", - gr_make_io_signature (1, 1, sizeof (float)), - gr_make_io_signature (1, 1, sizeof (unsigned char))) +gr_int_to_float::gr_int_to_float () + : gr_sync_block ("gr_int_to_float", + gr_make_io_signature (1, 1, sizeof (int32_t)), + gr_make_io_signature (1, 1, sizeof (float))) { } -static inline int -slice(float x) -{ - return x < 0 ? 0 : 1; -} - int -gr_binary_slicer_fb::work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) +gr_int_to_float::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) { - const float *in = (const float *) input_items[0]; - unsigned char *out = (unsigned char *) output_items[0]; - + const int32_t *in = (const int32_t *) input_items[0]; + float *out = (float *) output_items[0]; - for (int i = 0; i < noutput_items; i++){ - out[i] = slice(in[i]); + for(int i=0; i < noutput_items; i++) { + out[i] = (float)in[i]; } return noutput_items; } + + + diff --git a/gnuradio-core/src/lib/general/gr_binary_slicer_fb.h b/gnuradio-core/src/lib/general/gr_int_to_float.h index 2aa4a0828..cf1223be5 100644 --- a/gnuradio-core/src/lib/general/gr_binary_slicer_fb.h +++ b/gnuradio-core/src/lib/general/gr_int_to_float.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2006 Free Software Foundation, Inc. + * Copyright 2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,32 +20,32 @@ * Boston, MA 02110-1301, USA. */ -#ifndef INCLUDED_GR_BINARY_SLICER_FB_H -#define INCLUDED_GR_BINARY_SLICER_FB_H +#ifndef INCLUDED_GR_INT_TO_FLOAT_H +#define INCLUDED_GR_INT_TO_FLOAT_H #include <gr_sync_block.h> -class gr_binary_slicer_fb; -typedef boost::shared_ptr<gr_binary_slicer_fb> gr_binary_slicer_fb_sptr; +class gr_int_to_float; +typedef boost::shared_ptr<gr_int_to_float> gr_int_to_float_sptr; -gr_binary_slicer_fb_sptr gr_make_binary_slicer_fb (); +gr_int_to_float_sptr +gr_make_int_to_float (); /*! - * \brief slice float binary symbol outputting 1 bit output + * \brief Convert stream of short to a stream of float * \ingroup converter_blk - * - * x < 0 --> 0 - * x >= 0 --> 1 */ -class gr_binary_slicer_fb : public gr_sync_block + +class gr_int_to_float : public gr_sync_block { - friend gr_binary_slicer_fb_sptr gr_make_binary_slicer_fb (); - gr_binary_slicer_fb (); + friend gr_int_to_float_sptr gr_make_int_to_float (); + gr_int_to_float (); public: - int work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); + virtual int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); }; -#endif + +#endif /* INCLUDED_GR_INT_TO_FLOAT_H */ diff --git a/gnuradio-core/src/lib/general/gr_crc32.i b/gnuradio-core/src/lib/general/gr_int_to_float.i index 7dca5c6a1..8cb9e35b5 100644 --- a/gnuradio-core/src/lib/general/gr_crc32.i +++ b/gnuradio-core/src/lib/general/gr_int_to_float.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,8 +20,11 @@ * Boston, MA 02110-1301, USA. */ -%rename(update_crc32) gr_update_crc32; -%rename(crc32) gr_crc32; +GR_SWIG_BLOCK_MAGIC(gr,int_to_float) -unsigned int gr_update_crc32(unsigned int crc, const std::string buf); -unsigned int gr_crc32(const std::string buf); +gr_int_to_float_sptr gr_make_int_to_float (); + +class gr_int_to_float : public gr_sync_block +{ + gr_int_to_float (); +}; diff --git a/gnuradio-core/src/lib/general/gr_keep_one_in_n.cc b/gnuradio-core/src/lib/general/gr_keep_one_in_n.cc index c07e177fe..85495e277 100644 --- a/gnuradio-core/src/lib/general/gr_keep_one_in_n.cc +++ b/gnuradio-core/src/lib/general/gr_keep_one_in_n.cc @@ -38,8 +38,9 @@ gr_keep_one_in_n::gr_keep_one_in_n (size_t item_size, int n) : gr_block ("keep_one_in_n", gr_make_io_signature (1, 1, item_size), gr_make_io_signature (1, 1, item_size)), - d_n (n), d_count(n) + d_count(n) { + set_n(n); } void @@ -50,6 +51,8 @@ gr_keep_one_in_n::set_n(int n) d_n = n; d_count = n; + + set_relative_rate(1.0 / (float)n); } int diff --git a/gnuradio-core/src/lib/general/gr_lms_dfe_cc.cc b/gnuradio-core/src/lib/general/gr_lms_dfe_cc.cc deleted file mode 100644 index 8659386d5..000000000 --- a/gnuradio-core/src/lib/general/gr_lms_dfe_cc.cc +++ /dev/null @@ -1,148 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_lms_dfe_cc.h> -#include <gr_io_signature.h> -#include <gr_misc.h> -#include <iostream> - -gr_complex -gr_lms_dfe_cc::slicer_0deg (gr_complex sample) -{ - gr_complex out; - if(fabs(real(sample))>fabs(imag(sample))) { - if(real(sample) > 0) - out = gr_complex(1,0); - else - out = gr_complex(-1,0); - } - else { - if(imag(sample) > 0) - out = gr_complex(0,1); - else - out = gr_complex(0,-1); - } - return out; -} - -gr_complex -gr_lms_dfe_cc::slicer_45deg (gr_complex sample) -{ - gr_complex out; - if(real(sample) > 0) - out = gr_complex(1,0); - else - out = gr_complex(-1,0); - if(imag(sample) > 0) - out += gr_complex(0,1); - else - out += gr_complex(0,-1); - return out; -} - -gr_lms_dfe_cc_sptr -gr_make_lms_dfe_cc (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps) -{ - return gnuradio::get_initial_sptr(new gr_lms_dfe_cc (lambda_ff, lambda_fb, - num_fftaps, num_fbtaps)); -} - -gr_lms_dfe_cc::gr_lms_dfe_cc (float lambda_ff, float lambda_fb , - unsigned int num_fftaps, unsigned int num_fbtaps) - : gr_sync_block ("lms_dfe_cc", - gr_make_io_signature (1, 1, sizeof (gr_complex)), - gr_make_io_signature (1, 1, sizeof (gr_complex))), - d_lambda_ff (lambda_ff), d_lambda_fb (lambda_fb), - d_ff_delayline(gr_rounduppow2(num_fftaps)), - d_fb_delayline(gr_rounduppow2(num_fbtaps)), - d_ff_taps(num_fftaps),d_fb_taps(num_fbtaps), - d_ff_index(0), d_fb_index(0) -{ - gr_zero_vector(d_ff_taps); - d_ff_taps [d_ff_taps.size()/2] = 1; - - gr_zero_vector(d_fb_taps); - gr_zero_vector(d_ff_delayline); - gr_zero_vector(d_fb_delayline); -} - -int -gr_lms_dfe_cc::work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) -{ - const gr_complex *iptr = (const gr_complex *) input_items[0]; - gr_complex *optr = (gr_complex *) output_items[0]; - - gr_complex acc, decision, error; - unsigned int i; - - unsigned int ff_mask = d_ff_delayline.size() - 1; // size is power of 2 - unsigned int fb_mask = d_fb_delayline.size() - 1; - - int size = noutput_items; - while (size-- > 0){ - acc = 0; - d_ff_delayline[d_ff_index] = *iptr++; - - // Compute output - for (i=0; i < d_ff_taps.size(); i++) - acc += conj(d_ff_delayline[(i+d_ff_index) & ff_mask]) * d_ff_taps[i]; - - for (i=0; i < d_fb_taps.size(); i++) - acc -= conj(d_fb_delayline[(i+d_fb_index) & fb_mask]) * d_fb_taps[i]; - - decision = slicer_45deg(acc); - error = decision - acc; - - // Update taps - for (i=0; i < d_ff_taps.size(); i++) - d_ff_taps[i] += d_lambda_ff * conj(error) * d_ff_delayline[(i+d_ff_index) & ff_mask]; - - for (i=0; i < d_fb_taps.size(); i++) - d_fb_taps[i] -= d_lambda_fb * conj(error) * d_fb_delayline[(i+d_fb_index) & fb_mask]; - - d_fb_index = (d_fb_index - 1) & fb_mask; // Decrement index - d_ff_index = (d_ff_index - 1) & ff_mask; // Decrement index - - d_fb_delayline[d_fb_index] = decision; // Save decision in feedback - - *optr++ = acc; // Output decision - } - - if (0){ - std::cout << "FF Taps\t"; - for(i=0;i<d_ff_taps.size();i++) - std::cout << d_ff_taps[i] << "\t"; - std::cout << std::endl << "FB Taps\t"; - for(i=0;i<d_fb_taps.size();i++) - std::cout << d_fb_taps[i] << "\t"; - std::cout << std::endl; - } - - return noutput_items; -} diff --git a/gnuradio-core/src/lib/general/gr_lms_dfe_cc.h b/gnuradio-core/src/lib/general/gr_lms_dfe_cc.h deleted file mode 100644 index 7b3a2c84e..000000000 --- a/gnuradio-core/src/lib/general/gr_lms_dfe_cc.h +++ /dev/null @@ -1,64 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005 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_LMS_DFE_CC_H -#define INCLUDED_GR_LMS_DFE_CC_H - -#include <gr_sync_block.h> - -class gr_lms_dfe_cc; -typedef boost::shared_ptr<gr_lms_dfe_cc> gr_lms_dfe_cc_sptr; - -gr_lms_dfe_cc_sptr gr_make_lms_dfe_cc (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - -/*! - * \brief Least-Mean-Square Decision Feedback Equalizer (complex in/out) - * \ingroup eq_blk - */ -class gr_lms_dfe_cc : public gr_sync_block -{ - friend gr_lms_dfe_cc_sptr gr_make_lms_dfe_cc (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - - float d_lambda_ff; - float d_lambda_fb; - std::vector<gr_complex> d_ff_delayline; - std::vector<gr_complex> d_fb_delayline; - std::vector<gr_complex> d_ff_taps; - std::vector<gr_complex> d_fb_taps; - unsigned int d_ff_index; - unsigned int d_fb_index; - - gr_lms_dfe_cc (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - gr_complex slicer_0deg(gr_complex baud); - gr_complex slicer_45deg(gr_complex baud); - - public: - - int work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_lms_dfe_ff.cc b/gnuradio-core/src/lib/general/gr_lms_dfe_ff.cc deleted file mode 100644 index 8a5e22c2f..000000000 --- a/gnuradio-core/src/lib/general/gr_lms_dfe_ff.cc +++ /dev/null @@ -1,122 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_lms_dfe_ff.h> -#include <gr_io_signature.h> -#include <gr_misc.h> -#include <iostream> - -float -slice(float val) -{ - if (val>0) - return 1; - else - return -1; -} - -gr_lms_dfe_ff_sptr -gr_make_lms_dfe_ff (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps) -{ - return gnuradio::get_initial_sptr(new gr_lms_dfe_ff (lambda_ff,lambda_fb,num_fftaps,num_fbtaps)); -} - -gr_lms_dfe_ff::gr_lms_dfe_ff (float lambda_ff, float lambda_fb , - unsigned int num_fftaps, unsigned int num_fbtaps) - : gr_sync_block ("lms_dfe_ff", - gr_make_io_signature (1, 1, sizeof (float)), - gr_make_io_signature (1, 1, sizeof (float))), - d_lambda_ff (lambda_ff), d_lambda_fb (lambda_fb), - d_ff_delayline(gr_rounduppow2(num_fftaps)), - d_fb_delayline(gr_rounduppow2(num_fbtaps)), - d_ff_taps(num_fftaps), d_fb_taps(num_fbtaps), - d_ff_index(0), d_fb_index(0) -{ - gr_zero_vector(d_ff_taps); - d_ff_taps [d_ff_taps.size()/2] = 1; - - gr_zero_vector(d_fb_taps); - gr_zero_vector(d_ff_delayline); - gr_zero_vector(d_fb_delayline); -} - -int -gr_lms_dfe_ff::work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) -{ - const float *iptr = (const float *) input_items[0]; - float *optr = (float *) output_items[0]; - - float acc, decision, error; - unsigned int i; - - unsigned int ff_mask = d_ff_delayline.size() - 1; // size is power of 2 - unsigned int fb_mask = d_fb_delayline.size() - 1; - - int size = noutput_items; - while(size-- > 0) { - acc = 0; - d_ff_delayline[d_ff_index] = *iptr++; - - // Compute output - for (i=0; i < d_ff_taps.size(); i++) - acc += d_ff_delayline[(i+d_ff_index) & ff_mask] * d_ff_taps[i]; - - for (i=0; i < d_fb_taps.size(); i++) - acc -= d_fb_delayline[(i+d_fb_index) & fb_mask] * d_fb_taps[i]; - - decision = slice(acc); - error = decision - acc; - - // Update taps - for (i=0; i < d_ff_taps.size(); i++) - d_ff_taps[i] += d_lambda_ff * error * d_ff_delayline[(i+d_ff_index) & ff_mask]; - - for (i=0; i < d_fb_taps.size(); i++) - d_fb_taps[i] -= d_lambda_fb * error * d_fb_delayline[(i+d_fb_index) & fb_mask]; - - d_fb_index = (d_fb_index - 1) & fb_mask; // Decrement index - d_ff_index = (d_ff_index - 1) & ff_mask; // Decrement index - - d_fb_delayline[d_fb_index] = decision; // Save decision in feedback - - *optr++ = acc; // Output decision - } - - if (0){ - std::cout << "FF Taps\t"; - for(i=0;i<d_ff_taps.size();i++) - std::cout << d_ff_taps[i] << "\t"; - std::cout << std::endl << "FB Taps\t"; - for(i=0;i<d_fb_taps.size();i++) - std::cout << d_fb_taps[i] << "\t"; - std::cout << std::endl; - } - - return noutput_items; -} diff --git a/gnuradio-core/src/lib/general/gr_lms_dfe_ff.h b/gnuradio-core/src/lib/general/gr_lms_dfe_ff.h deleted file mode 100644 index dd610c470..000000000 --- a/gnuradio-core/src/lib/general/gr_lms_dfe_ff.h +++ /dev/null @@ -1,62 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005 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_LMS_DFE_FF_H -#define INCLUDED_GR_LMS_DFE_FF_H - -#include <gr_sync_block.h> - -class gr_lms_dfe_ff; -typedef boost::shared_ptr<gr_lms_dfe_ff> gr_lms_dfe_ff_sptr; - -gr_lms_dfe_ff_sptr gr_make_lms_dfe_ff (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - -/*! - * \brief Least-Mean-Square Decision Feedback Equalizer (float in/out) - * \ingroup eq_blk - */ -class gr_lms_dfe_ff : public gr_sync_block -{ - friend gr_lms_dfe_ff_sptr gr_make_lms_dfe_ff (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - - float d_lambda_ff; - float d_lambda_fb; - std::vector<float> d_ff_delayline; - std::vector<float> d_fb_delayline; - std::vector<float> d_ff_taps; - std::vector<float> d_fb_taps; - unsigned int d_ff_index; - unsigned int d_fb_index; - - gr_lms_dfe_ff (float lambda_ff, float lambda_fb, - unsigned int num_fftaps, unsigned int num_fbtaps); - - public: - - int work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_math.cc b/gnuradio-core/src/lib/general/gr_math.cc deleted file mode 100644 index 82dff469c..000000000 --- a/gnuradio-core/src/lib/general/gr_math.cc +++ /dev/null @@ -1,102 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2003 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 <gr_math.h> -#include <math.h> - -/* - * Greatest Common Divisor, using Euclid's algorithm. - * [There are faster algorithms. See Knuth 4.5.2 if you care] - */ - -long -gr_gcd (long m, long n) -{ - if (m < 0) - m = -m; - - if (n < 0) - n = -n; - - while (n != 0){ - long t = m % n; - m = n; - n = t; - } - - return m; -} - - -/* - * These really need some configure hacking to figure out the right answer. - * As a stop gap, try for a macro, and if not that, then try std:: - */ - -// returns a non-zero value if value is "not-a-number" (NaN), and 0 otherwise - -#if defined(isnan) || !defined(CXX_HAS_STD_ISNAN) - -int -gr_isnan (double value) -{ - return isnan (value); -} - -#else - -int -gr_isnan (double value) -{ - return std::isnan (value); -} - -#endif - -// returns a non-zero value if the value of x has its sign bit set. -// -// This is not the same as `x < 0.0', because IEEE 754 floating point -// allows zero to be signed. The comparison `-0.0 < 0.0' is false, but -// `gr_signbit (-0.0)' will return a nonzero value. - -#ifdef signbit - -int -gr_signbit (double x) -{ - return signbit (x); -} - -#else - -int -gr_signbit (double x) -{ - return std::signbit (x); -} - - -#endif diff --git a/gnuradio-core/src/lib/general/gr_math.h b/gnuradio-core/src/lib/general/gr_math.h index ea0f20027..f5935c1da 100644 --- a/gnuradio-core/src/lib/general/gr_math.h +++ b/gnuradio-core/src/lib/general/gr_math.h @@ -35,19 +35,6 @@ gr_is_power_of_2(long x) return x != 0 && (x & (x-1)) == 0; } -long gr_gcd (long m, long n); - -// returns a non-zero value if value is "not-a-number" (NaN), and 0 otherwise -int gr_isnan (double value); - -// returns a non-zero value if the value of x has its sign bit set. -// -// This is not the same as `x < 0.0', because IEEE 754 floating point -// allows zero to be signed. The comparison `-0.0 < 0.0' is false, but -// `gr_signbit (-0.0)' will return a nonzero value. - -int gr_signbit (double x); - /*! * \brief Fast arc tangent using table lookup and linear interpolation * \ingroup misc diff --git a/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.cc b/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.cc deleted file mode 100644 index bc51c6769..000000000 --- a/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.cc +++ /dev/null @@ -1,322 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005,2006,2007,2010 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_io_signature.h> -#include <gr_prefs.h> -#include <gr_mpsk_receiver_cc.h> -#include <stdexcept> -#include <gr_math.h> -#include <gr_expj.h> -#include <gri_mmse_fir_interpolator_cc.h> - - -#define M_TWOPI (2*M_PI) -#define VERBOSE_MM 0 // Used for debugging symbol timing loop -#define VERBOSE_COSTAS 0 // Used for debugging phase and frequency tracking - -// Public constructor - -gr_mpsk_receiver_cc_sptr -gr_make_mpsk_receiver_cc(unsigned int M, float theta, - float alpha, float beta, - float fmin, float fmax, - float mu, float gain_mu, - float omega, float gain_omega, float omega_rel) -{ - return gnuradio::get_initial_sptr(new gr_mpsk_receiver_cc (M, theta, - alpha, beta, - fmin, fmax, - mu, gain_mu, - omega, gain_omega, omega_rel)); -} - -gr_mpsk_receiver_cc::gr_mpsk_receiver_cc (unsigned int M, float theta, - float alpha, float beta, - float fmin, float fmax, - float mu, float gain_mu, - float omega, float gain_omega, float omega_rel) - : gr_block ("mpsk_receiver_cc", - gr_make_io_signature (1, 1, sizeof (gr_complex)), - gr_make_io_signature (1, 1, sizeof (gr_complex))), - d_M(M), d_theta(theta), - d_alpha(alpha), d_beta(beta), d_freq(0), d_max_freq(fmax), d_min_freq(fmin), d_phase(0), - d_current_const_point(0), - d_mu(mu), d_gain_mu(gain_mu), d_gain_omega(gain_omega), - d_omega_rel(omega_rel), d_max_omega(0), d_min_omega(0), - d_p_2T(0), d_p_1T(0), d_p_0T(0), d_c_2T(0), d_c_1T(0), d_c_0T(0) -{ - d_interp = new gri_mmse_fir_interpolator_cc(); - d_dl_idx = 0; - - set_omega(omega); - - if (omega <= 0.0) - throw std::out_of_range ("clock rate must be > 0"); - if (gain_mu < 0 || gain_omega < 0) - throw std::out_of_range ("Gains must be non-negative"); - - assert(d_interp->ntaps() <= DLLEN); - - // zero double length delay line. - for (unsigned int i = 0; i < 2 * DLLEN; i++) - d_dl[i] = gr_complex(0.0,0.0); - - // build the constellation vector from M - make_constellation(); - - // Select a phase detector and a decision maker for the modulation order - switch(d_M) { - case 2: // optimized algorithms for BPSK - d_phase_error_detector = &gr_mpsk_receiver_cc::phase_error_detector_bpsk; //bpsk; - d_decision = &gr_mpsk_receiver_cc::decision_bpsk; - break; - - case 4: // optimized algorithms for QPSK - d_phase_error_detector = &gr_mpsk_receiver_cc::phase_error_detector_qpsk; //qpsk; - d_decision = &gr_mpsk_receiver_cc::decision_qpsk; - break; - - default: // generic algorithms for any M (power of 2?) but not pretty - d_phase_error_detector = &gr_mpsk_receiver_cc::phase_error_detector_generic; - d_decision = &gr_mpsk_receiver_cc::decision_generic; - break; - } -} - -gr_mpsk_receiver_cc::~gr_mpsk_receiver_cc () -{ - delete d_interp; -} - -void -gr_mpsk_receiver_cc::forecast(int noutput_items, gr_vector_int &ninput_items_required) -{ - unsigned ninputs = ninput_items_required.size(); - for (unsigned i=0; i < ninputs; i++) - ninput_items_required[i] = (int) ceil((noutput_items * d_omega) + d_interp->ntaps()); -} - -// FIXME add these back in an test difference in performance -float -gr_mpsk_receiver_cc::phase_error_detector_qpsk(gr_complex sample) const -{ - float phase_error = 0; - if(fabsf(sample.real()) > fabsf(sample.imag())) { - if(sample.real() > 0) - phase_error = -sample.imag(); - else - phase_error = sample.imag(); - } - else { - if(sample.imag() > 0) - phase_error = sample.real(); - else - phase_error = -sample.real(); - } - - return phase_error; -} - -float -gr_mpsk_receiver_cc::phase_error_detector_bpsk(gr_complex sample) const -{ - return -(sample.real()*sample.imag()); -} - -float gr_mpsk_receiver_cc::phase_error_detector_generic(gr_complex sample) const -{ - //return gr_fast_atan2f(sample*conj(d_constellation[d_current_const_point])); - return -arg(sample*conj(d_constellation[d_current_const_point])); -} - -unsigned int -gr_mpsk_receiver_cc::decision_bpsk(gr_complex sample) const -{ - return (gr_branchless_binary_slicer(sample.real()) ^ 1); - //return gr_binary_slicer(sample.real()) ^ 1; -} - -unsigned int -gr_mpsk_receiver_cc::decision_qpsk(gr_complex sample) const -{ - unsigned int index; - - //index = gr_branchless_quad_0deg_slicer(sample); - index = gr_quad_0deg_slicer(sample); - return index; -} - -unsigned int -gr_mpsk_receiver_cc::decision_generic(gr_complex sample) const -{ - unsigned int min_m = 0; - float min_s = 65535; - - // Develop all possible constellation points and find the one that minimizes - // the Euclidean distance (error) with the sample - for(unsigned int m=0; m < d_M; m++) { - gr_complex diff = norm(d_constellation[m] - sample); - - if(fabs(diff.real()) < min_s) { - min_s = fabs(diff.real()); - min_m = m; - } - } - // Return the index of the constellation point that minimizes the error - return min_m; -} - - -void -gr_mpsk_receiver_cc::make_constellation() -{ - for(unsigned int m=0; m < d_M; m++) { - d_constellation.push_back(gr_expj((M_TWOPI/d_M)*m)); - } -} - -void -gr_mpsk_receiver_cc::mm_sampler(const gr_complex symbol) -{ - gr_complex sample, nco; - - d_mu--; // skip a number of symbols between sampling - d_phase += d_freq; // increment the phase based on the frequency of the rotation - - // Keep phase clamped and not walk to infinity - while(d_phase > M_TWOPI) - d_phase -= M_TWOPI; - while(d_phase < -M_TWOPI) - d_phase += M_TWOPI; - - nco = gr_expj(d_phase+d_theta); // get the NCO value for derotating the current sample - sample = nco*symbol; // get the downconverted symbol - - // Fill up the delay line for the interpolator - d_dl[d_dl_idx] = sample; - d_dl[(d_dl_idx + DLLEN)] = sample; // put this in the second half of the buffer for overflows - d_dl_idx = (d_dl_idx+1) % DLLEN; // Keep the delay line index in bounds -} - -void -gr_mpsk_receiver_cc::mm_error_tracking(gr_complex sample) -{ - gr_complex u, x, y; - float mm_error = 0; - - // Make sample timing corrections - - // set the delayed samples - d_p_2T = d_p_1T; - d_p_1T = d_p_0T; - d_p_0T = sample; - d_c_2T = d_c_1T; - d_c_1T = d_c_0T; - - d_current_const_point = (*this.*d_decision)(d_p_0T); // make a decision on the sample value - d_c_0T = d_constellation[d_current_const_point]; - - x = (d_c_0T - d_c_2T) * conj(d_p_1T); - y = (d_p_0T - d_p_2T) * conj(d_c_1T); - u = y - x; - mm_error = u.real(); // the error signal is in the real part - mm_error = gr_branchless_clip(mm_error, 1.0); // limit mm_val - - d_omega = d_omega + d_gain_omega * mm_error; // update omega based on loop error - d_omega = d_omega_mid + gr_branchless_clip(d_omega-d_omega_mid, d_omega_rel); // make sure we don't walk away - - d_mu += d_omega + d_gain_mu * mm_error; // update mu based on loop error - -#if VERBOSE_MM - printf("mm: mu: %f omega: %f mm_error: %f sample: %f+j%f constellation: %f+j%f\n", - d_mu, d_omega, mm_error, sample.real(), sample.imag(), - d_constellation[d_current_const_point].real(), d_constellation[d_current_const_point].imag()); -#endif -} - - -void -gr_mpsk_receiver_cc::phase_error_tracking(gr_complex sample) -{ - float phase_error = 0; - - // Make phase and frequency corrections based on sampled value - phase_error = (*this.*d_phase_error_detector)(sample); - - d_freq += d_beta*phase_error; // adjust frequency based on error - d_phase += d_freq + d_alpha*phase_error; // adjust phase based on error - - // Make sure we stay within +-2pi - while(d_phase > M_TWOPI) - d_phase -= M_TWOPI; - while(d_phase < -M_TWOPI) - d_phase += M_TWOPI; - - // Limit the frequency range - d_freq = gr_branchless_clip(d_freq, d_max_freq); - -#if VERBOSE_COSTAS - printf("cl: phase_error: %f phase: %f freq: %f sample: %f+j%f constellation: %f+j%f\n", - phase_error, d_phase, d_freq, sample.real(), sample.imag(), - d_constellation[d_current_const_point].real(), d_constellation[d_current_const_point].imag()); -#endif -} - -int -gr_mpsk_receiver_cc::general_work (int noutput_items, - gr_vector_int &ninput_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]; - - int i=0, o=0; - - while((o < noutput_items) && (i < ninput_items[0])) { - while((d_mu > 1) && (i < ninput_items[0])) { - mm_sampler(in[i]); // puts symbols into a buffer and adjusts d_mu - i++; - } - - if(i < ninput_items[0]) { - gr_complex interp_sample = d_interp->interpolate(&d_dl[d_dl_idx], d_mu); - - mm_error_tracking(interp_sample); // corrects M&M sample time - phase_error_tracking(interp_sample); // corrects phase and frequency offsets - - out[o++] = interp_sample; - } - } - - #if 0 - printf("ninput_items: %d noutput_items: %d consuming: %d returning: %d\n", - ninput_items[0], noutput_items, i, o); - #endif - - consume_each(i); - return o; -} diff --git a/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.h b/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.h deleted file mode 100644 index 024d74ada..000000000 --- a/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.h +++ /dev/null @@ -1,315 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004,2007 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_MPSK_RECEIVER_CC_H -#define INCLUDED_GR_MPSK_RECEIVER_CC_H - -#include <gr_block.h> -#include <gr_complex.h> -#include <fstream> - -class gri_mmse_fir_interpolator_cc; - -class gr_mpsk_receiver_cc; -typedef boost::shared_ptr<gr_mpsk_receiver_cc> gr_mpsk_receiver_cc_sptr; - -// public constructor -gr_mpsk_receiver_cc_sptr -gr_make_mpsk_receiver_cc (unsigned int M, float theta, - float alpha, float beta, - float fmin, float fmax, - float mu, float gain_mu, - float omega, float gain_omega, float omega_rel); - -/*! - * \brief This block takes care of receiving M-PSK modulated signals through phase, frequency, and symbol - * synchronization. - * \ingroup sync_blk - * \ingroup demod_blk - * - * This block takes care of receiving M-PSK modulated signals through phase, frequency, and symbol - * synchronization. It performs carrier frequency and phase locking as well as symbol timing recovery. - * It works with (D)BPSK, (D)QPSK, and (D)8PSK as tested currently. It should also work for OQPSK and - * PI/4 DQPSK. - * - * The phase and frequency synchronization are based on a Costas loop that finds the error of the incoming - * signal point compared to its nearest constellation point. The frequency and phase of the NCO are - * updated according to this error. There are optimized phase error detectors for BPSK and QPSK, but 8PSK - * is done using a brute-force computation of the constellation points to find the minimum. - * - * The symbol synchronization is done using a modified Mueller and Muller circuit from the paper: - * - * G. R. Danesfahani, T.G. Jeans, "Optimisation of modified Mueller and Muller - * algorithm," Electronics Letters, Vol. 31, no. 13, 22 June 1995, pp. 1032 - 1033. - * - * This circuit interpolates the downconverted sample (using the NCO developed by the Costas loop) - * every mu samples, then it finds the sampling error based on this and the past symbols and the decision - * made on the samples. Like the phase error detector, there are optimized decision algorithms for BPSK - * and QPKS, but 8PSK uses another brute force computation against all possible symbols. The modifications - * to the M&M used here reduce self-noise. - * - */ - -class gr_mpsk_receiver_cc : public gr_block -{ - public: - ~gr_mpsk_receiver_cc (); - 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); - - - // Member functions related to the symbol tracking portion of the receiver - //! (M&M) Returns current value of mu - float mu() const { return d_mu;} - - //! (M&M) Returns current value of omega - float omega() const { return d_omega;} - - //! (M&M) Returns mu gain factor - float gain_mu() const { return d_gain_mu;} - - //! (M&M) Returns omega gain factor - float gain_omega() const { return d_gain_omega;} - - //! (M&M) Sets value of mu - void set_mu (float mu) { d_mu = mu; } - - //! (M&M) Sets value of omega and its min and max values - void set_omega (float omega) { - d_omega = omega; - d_min_omega = omega*(1.0 - d_omega_rel); - d_max_omega = omega*(1.0 + d_omega_rel); - d_omega_mid = 0.5*(d_min_omega+d_max_omega); - } - - //! (M&M) Sets value for mu gain factor - void set_gain_mu (float gain_mu) { d_gain_mu = gain_mu; } - - //! (M&M) Sets value for omega gain factor - void set_gain_omega (float gain_omega) { d_gain_omega = gain_omega; } - - - - // Member function related to the phase/frequency tracking portion of the receiver - //! (CL) Returns the value for alpha (the phase gain term) - float alpha() const { return d_alpha; } - - //! (CL) Returns the value of beta (the frequency gain term) - float beta() const { return d_beta; } - - //! (CL) Returns the current value of the frequency of the NCO in the Costas loop - float freq() const { return d_freq; } - - //! (CL) Returns the current value of the phase of the NCO in the Costal loop - float phase() const { return d_phase; } - - //! (CL) Sets the value for alpha (the phase gain term) - void set_alpha(float alpha) { d_alpha = alpha; } - - //! (CL) Setss the value of beta (the frequency gain term) - void set_beta(float beta) { d_beta = beta; } - - //! (CL) Sets the current value of the frequency of the NCO in the Costas loop - void set_freq(float freq) { d_freq = freq; } - - //! (CL) Setss the current value of the phase of the NCO in the Costal loop - void set_phase(float phase) { d_phase = phase; } - - -protected: - - /*! - * \brief Constructor to synchronize incoming M-PSK symbols - * - * \param M modulation order of the M-PSK modulation - * \param theta any constant phase rotation from the real axis of the constellation - * \param alpha gain parameter to adjust the phase in the Costas loop (~0.01) - * \param beta gain parameter to adjust the frequency in the Costas loop (~alpha^2/4) - * \param fmin minimum normalized frequency value the loop can achieve - * \param fmax maximum normalized frequency value the loop can achieve - * \param mu initial parameter for the interpolator [0,1] - * \param gain_mu gain parameter of the M&M error signal to adjust mu (~0.05) - * \param omega initial value for the number of symbols between samples (~number of samples/symbol) - * \param gain_omega gain parameter to adjust omega based on the error (~omega^2/4) - * \param omega_rel sets the maximum (omega*(1+omega_rel)) and minimum (omega*(1+omega_rel)) omega (~0.005) - * - * The constructor also chooses which phase detector and decision maker to use in the work loop based on the - * value of M. - */ - gr_mpsk_receiver_cc (unsigned int M, float theta, - float alpha, float beta, - float fmin, float fmax, - float mu, float gain_mu, - float omega, float gain_omega, float omega_rel); - - void make_constellation(); - void mm_sampler(const gr_complex symbol); - void mm_error_tracking(gr_complex sample); - void phase_error_tracking(gr_complex sample); - - -/*! - * \brief Phase error detector for MPSK modulations. - * - * \param sample the I&Q sample from which to determine the phase error - * - * This function determines the phase error for any MPSK signal by creating a set of PSK constellation points - * and doing a brute-force search to see which point minimizes the Euclidean distance. This point is then used - * to derotate the sample to the real-axis and a atan (using the fast approximation function) to determine the - * phase difference between the incoming sample and the real constellation point - * - * This should be cleaned up and made more efficient. - * - * \returns the approximated phase error. - */ - float phase_error_detector_generic(gr_complex sample) const; // generic for M but more costly - - /*! - * \brief Phase error detector for BPSK modulation. - * - * \param sample the I&Q sample from which to determine the phase error - * - * This function determines the phase error using a simple BPSK phase error detector by multiplying the real - * and imaginary (the error signal) components together. As the imaginary part goes to 0, so does this error. - * - * \returns the approximated phase error. - */ - float phase_error_detector_bpsk(gr_complex sample) const; // optimized for BPSK - - /*! - * \brief Phase error detector for QPSK modulation. - * - * \param sample the I&Q sample from which to determine the phase error - * - * This function determines the phase error using the limiter approach in a standard 4th order Costas loop - * - * \returns the approximated phase error. - */ - float phase_error_detector_qpsk(gr_complex sample) const; - - - - /*! - * \brief Decision maker for a generic MPSK constellation. - * - * \param sample the baseband I&Q sample from which to make the decision - * - * This decision maker is a generic implementation that does a brute-force search - * for the constellation point that minimizes the error between it and the incoming signal. - * - * \returns the index to d_constellation that minimizes the error/ - */ - unsigned int decision_generic(gr_complex sample) const; - - - /*! - * \brief Decision maker for BPSK constellation. - * - * \param sample the baseband I&Q sample from which to make the decision - * - * This decision maker is a simple slicer function that makes a decision on the symbol based on its - * placement on the real axis of greater than 0 or less than 0; the quadrature component is always 0. - * - * \returns the index to d_constellation that minimizes the error/ - */ - unsigned int decision_bpsk(gr_complex sample) const; - - - /*! - * \brief Decision maker for QPSK constellation. - * - * \param sample the baseband I&Q sample from which to make the decision - * - * This decision maker is a simple slicer function that makes a decision on the symbol based on its - * placement versus both axes and returns which quadrant the symbol is in. - * - * \returns the index to d_constellation that minimizes the error/ - */ - unsigned int decision_qpsk(gr_complex sample) const; - - private: - unsigned int d_M; - float d_theta; - - // Members related to carrier and phase tracking - float d_alpha; - float d_beta; - float d_freq, d_max_freq, d_min_freq; - float d_phase; - -/*! - * \brief Decision maker function pointer - * - * \param sample the baseband I&Q sample from which to make the decision - * - * This is a function pointer that is set in the constructor to point to the proper decision function - * for the specified constellation order. - * - * \return index into d_constellation point that is the closest to the recieved sample - */ - unsigned int (gr_mpsk_receiver_cc::*d_decision)(gr_complex sample) const; // pointer to decision function - - - std::vector<gr_complex> d_constellation; - unsigned int d_current_const_point; - - // Members related to symbol timing - float d_mu, d_gain_mu; - float d_omega, d_gain_omega, d_omega_rel, d_max_omega, d_min_omega, d_omega_mid; - gr_complex d_p_2T, d_p_1T, d_p_0T; - gr_complex d_c_2T, d_c_1T, d_c_0T; - - /*! - * \brief Phase error detector function pointer - * - * \param sample the I&Q sample from which to determine the phase error - * - * This is a function pointer that is set in the constructor to point to the proper phase error detector - * function for the specified constellation order. - */ - float (gr_mpsk_receiver_cc::*d_phase_error_detector)(gr_complex sample) const; - - - //! get interpolated value - gri_mmse_fir_interpolator_cc *d_interp; - - //! delay line length. - static const unsigned int DLLEN = 8; - - //! delay line plus some length for overflow protection - gr_complex d_dl[2*DLLEN] __attribute__ ((aligned(8))); - - //! index to delay line - unsigned int d_dl_idx; - - friend gr_mpsk_receiver_cc_sptr - gr_make_mpsk_receiver_cc (unsigned int M, float theta, - float alpha, float beta, - float fmin, float fmax, - float mu, float gain_mu, - float omega, float gain_omega, float omega_rel); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.i b/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.i deleted file mode 100644 index 88cb43e04..000000000 --- a/gnuradio-core/src/lib/general/gr_mpsk_receiver_cc.i +++ /dev/null @@ -1,59 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004 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(gr,mpsk_receiver_cc); - -gr_mpsk_receiver_cc_sptr gr_make_mpsk_receiver_cc (unsigned int M, float theta, - float alpha, float beta, - float fmin, float fmax, - float mu, float gain_mu, - float omega, float gain_omega, float omega_rel); -class gr_mpsk_receiver_cc : public gr_block -{ - private: - gr_mpsk_receiver_cc (unsigned int M,float theta, - float alpha, float beta, - float fmin, float fmax, - float mu, float gain_mu, - float omega, float gain_omega, float omega_rel); -public: - float mu() const { return d_mu;} - float omega() const { return d_omega;} - float gain_mu() const { return d_gain_mu;} - float gain_omega() const { return d_gain_omega;} - void set_mu (float mu) { d_mu = mu; } - void set_omega (float omega) { - d_omega = omega; - d_min_omega = omega*(1.0 - d_omega_rel); - d_max_omega = omega*(1.0 + d_omega_rel); - } - void set_gain_mu (float gain_mu) { d_gain_mu = gain_mu; } - void set_gain_omega (float gain_omega) { d_gain_omega = gain_omega; } - float alpha() const { return d_alpha; } - float beta() const { return d_beta; } - float freq() const { return d_freq; } - float phase() const { return d_phase; } - void set_alpha(float alpha) { d_alpha = alpha; } - void set_beta(float beta) { d_beta = beta; } - void set_freq(float freq) { d_freq = freq; } - void set_phase(float phase) { d_phase = phase; } -}; diff --git a/gnuradio-core/src/lib/general/gr_nop.cc b/gnuradio-core/src/lib/general/gr_nop.cc index e69c8b340..bd5e4fd81 100644 --- a/gnuradio-core/src/lib/general/gr_nop.cc +++ b/gnuradio-core/src/lib/general/gr_nop.cc @@ -25,18 +25,30 @@ #endif #include <gr_nop.h> #include <gr_io_signature.h> +#include <boost/bind.hpp> + +gr_nop_sptr +gr_make_nop (size_t sizeof_stream_item) +{ + return gnuradio::get_initial_sptr (new gr_nop (sizeof_stream_item)); +} gr_nop::gr_nop (size_t sizeof_stream_item) : gr_block ("nop", - gr_make_io_signature (0, -1, sizeof_stream_item), - gr_make_io_signature (0, -1, sizeof_stream_item)) + gr_make_io_signature (0, -1, sizeof_stream_item), + gr_make_io_signature (0, -1, sizeof_stream_item)), + d_nmsgs_recvd(0) { + // Arrange to have count_received_msgs called when messages are received. + set_msg_handler(boost::bind(&gr_nop::count_received_msgs, this, _1)); } -gr_block_sptr -gr_make_nop (size_t sizeof_stream_item) +// Trivial message handler that just counts them. +// (N.B., This feature is used in qa_set_msg_handler) +void +gr_nop::count_received_msgs(pmt::pmt_t msg) { - return gnuradio::get_initial_sptr (new gr_nop (sizeof_stream_item)); + d_nmsgs_recvd++; } int @@ -51,5 +63,3 @@ gr_nop::general_work (int noutput_items, return noutput_items; } - - diff --git a/gnuradio-core/src/lib/general/gr_nop.h b/gnuradio-core/src/lib/general/gr_nop.h index 60b20c5ab..354c2f9fc 100644 --- a/gnuradio-core/src/lib/general/gr_nop.h +++ b/gnuradio-core/src/lib/general/gr_nop.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -26,24 +26,35 @@ #include <gr_block.h> #include <stddef.h> // size_t +class gr_nop; +typedef boost::shared_ptr<gr_nop> gr_nop_sptr; + +gr_nop_sptr +gr_make_nop (size_t sizeof_stream_item); + /*! * \brief Does nothing. Used for testing only. * \ingroup misc_blk */ class gr_nop : public gr_block { - friend gr_block_sptr gr_make_nop (size_t sizeof_stream_item); - + friend gr_nop_sptr gr_make_nop (size_t sizeof_stream_item); gr_nop (size_t sizeof_stream_item); +protected: + int d_nmsgs_recvd; + + // Method that just counts any received messages. + void count_received_msgs(pmt::pmt_t msg); + public: virtual int general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items); -}; -gr_block_sptr -gr_make_nop (size_t sizeof_stream_item); + int nmsgs_received() const { return d_nmsgs_recvd; } + +}; #endif /* INCLUDED_GR_NOP_H */ diff --git a/gnuradio-core/src/lib/general/gr_nop.i b/gnuradio-core/src/lib/general/gr_nop.i index 8220e5c6c..85354d421 100644 --- a/gnuradio-core/src/lib/general/gr_nop.i +++ b/gnuradio-core/src/lib/general/gr_nop.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,11 +20,12 @@ * Boston, MA 02110-1301, USA. */ -%ignore gr_nop; +GR_SWIG_BLOCK_MAGIC(gr,nop) + +gr_nop_sptr gr_make_nop (size_t sizeof_stream_item); + class gr_nop : public gr_block { - friend gr_block_sptr gr_make_nop (size_t sizeof_stream_item); +private: gr_nop (size_t sizeof_stream_item); }; -%rename(nop) gr_make_nop; -gr_block_sptr gr_make_nop (size_t sizeof_stream_item); diff --git a/gnuradio-core/src/lib/general/gr_null_sink.cc b/gnuradio-core/src/lib/general/gr_null_sink.cc index 0b7f2d9e8..67ef57a46 100644 --- a/gnuradio-core/src/lib/general/gr_null_sink.cc +++ b/gnuradio-core/src/lib/general/gr_null_sink.cc @@ -34,7 +34,7 @@ gr_null_sink::gr_null_sink (size_t sizeof_stream_item) { } -gr_block_sptr +gr_null_sink_sptr gr_make_null_sink (size_t sizeof_stream_item) { return gnuradio::get_initial_sptr (new gr_null_sink (sizeof_stream_item)); diff --git a/gnuradio-core/src/lib/general/gr_null_sink.h b/gnuradio-core/src/lib/general/gr_null_sink.h index 66df5d138..6d00382a5 100644 --- a/gnuradio-core/src/lib/general/gr_null_sink.h +++ b/gnuradio-core/src/lib/general/gr_null_sink.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -26,15 +26,20 @@ #include <gr_sync_block.h> #include <stddef.h> // size_t +class gr_null_sink; +typedef boost::shared_ptr<gr_null_sink> gr_null_sink_sptr; + +gr_null_sink_sptr +gr_make_null_sink (size_t sizeof_stream_item); + + /*! * \brief Bit bucket * \ingroup sink_blk */ - class gr_null_sink : public gr_sync_block { - friend gr_block_sptr gr_make_null_sink (size_t sizeof_stream_item); - + friend gr_null_sink_sptr gr_make_null_sink (size_t sizeof_stream_item); gr_null_sink (size_t sizeof_stream_item); public: @@ -45,7 +50,4 @@ class gr_null_sink : public gr_sync_block }; -gr_block_sptr -gr_make_null_sink (size_t sizeof_stream_item); - #endif /* INCLUDED_GR_NULL_SINK_H */ diff --git a/gnuradio-core/src/lib/general/gr_null_sink.i b/gnuradio-core/src/lib/general/gr_null_sink.i index fc4bcffda..e739ce118 100644 --- a/gnuradio-core/src/lib/general/gr_null_sink.i +++ b/gnuradio-core/src/lib/general/gr_null_sink.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,11 +20,12 @@ * Boston, MA 02110-1301, USA. */ -%ignore gr_null_sink; +GR_SWIG_BLOCK_MAGIC(gr,null_sink) + +gr_null_sink_sptr gr_make_null_sink (size_t sizeof_stream_item); + class gr_null_sink : public gr_sync_block { - friend gr_block_sptr gr_make_null_sink (size_t sizeof_stream_item); +private: gr_null_sink (size_t sizeof_stream_item); }; -%rename(null_sink) gr_make_null_sink; -gr_block_sptr gr_make_null_sink (size_t sizeof_stream_item); diff --git a/gnuradio-core/src/lib/general/gr_null_source.cc b/gnuradio-core/src/lib/general/gr_null_source.cc index b65c39035..85fd2db4b 100644 --- a/gnuradio-core/src/lib/general/gr_null_source.cc +++ b/gnuradio-core/src/lib/general/gr_null_source.cc @@ -35,7 +35,7 @@ gr_null_source::gr_null_source (size_t sizeof_stream_item) { } -gr_block_sptr +gr_null_source_sptr gr_make_null_source (size_t sizeof_stream_item) { return gnuradio::get_initial_sptr (new gr_null_source (sizeof_stream_item)); diff --git a/gnuradio-core/src/lib/general/gr_null_source.h b/gnuradio-core/src/lib/general/gr_null_source.h index 63b1939bf..b1a46a195 100644 --- a/gnuradio-core/src/lib/general/gr_null_source.h +++ b/gnuradio-core/src/lib/general/gr_null_source.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -25,14 +25,19 @@ #include <gr_sync_block.h> +class gr_null_source; +typedef boost::shared_ptr<gr_null_source> gr_null_source_sptr; + +gr_null_source_sptr +gr_make_null_source (size_t sizeof_stream_item); + /*! * \brief A source of zeros. * \ingroup source_blk */ - class gr_null_source : public gr_sync_block { - friend gr_block_sptr gr_make_null_source (size_t sizeof_stream_item); + friend gr_null_source_sptr gr_make_null_source (size_t sizeof_stream_item); gr_null_source (size_t sizeof_stream_item); @@ -43,7 +48,4 @@ class gr_null_source : public gr_sync_block }; -gr_block_sptr -gr_make_null_source (size_t sizeof_stream_item); - #endif /* INCLUDED_GR_NULL_SOURCE_H */ diff --git a/gnuradio-core/src/lib/general/gr_null_source.i b/gnuradio-core/src/lib/general/gr_null_source.i index f9ddef86f..133161d0a 100644 --- a/gnuradio-core/src/lib/general/gr_null_source.i +++ b/gnuradio-core/src/lib/general/gr_null_source.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,11 +20,12 @@ * Boston, MA 02110-1301, USA. */ -%ignore gr_null_source; +GR_SWIG_BLOCK_MAGIC(gr,null_source) + +gr_null_source_sptr gr_make_null_source (size_t sizeof_stream_item); + class gr_null_source : public gr_sync_block { - friend gr_block_sptr gr_make_null_source (size_t sizeof_stream_item); +private: gr_null_source (size_t sizeof_stream_item); }; -%rename(null_source) gr_make_null_source; -gr_block_sptr gr_make_null_source (size_t sizeof_stream_item); diff --git a/gnuradio-core/src/lib/general/gr_ofdm_frame_sink.cc b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink.cc index 3457370eb..279945766 100644 --- a/gnuradio-core/src/lib/general/gr_ofdm_frame_sink.cc +++ b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink.cc @@ -281,7 +281,7 @@ gr_ofdm_frame_sink::set_sym_value_out(const std::vector<gr_complex> &sym_positio d_sym_position = sym_position; d_sym_value_out = sym_value_out; - d_nbits = (unsigned long)ceil(log10(d_sym_value_out.size()) / log10(2.0)); + d_nbits = (unsigned long)ceil(log10(float(d_sym_value_out.size())) / log10(2.0)); return true; } diff --git a/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.cc b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.cc new file mode 100644 index 000000000..40574b4e9 --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.cc @@ -0,0 +1,374 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2008,2010,2011 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gr_ofdm_frame_sink2.h> +#include <gr_io_signature.h> +#include <gr_expj.h> +#include <gr_math.h> +#include <math.h> +#include <cstdio> +#include <stdexcept> +#include <iostream> +#include <string.h> +#include <gr_constellation.h> + +#define VERBOSE 0 + +inline void +gr_ofdm_frame_sink2::enter_search() +{ + if (VERBOSE) + fprintf(stderr, "@ enter_search\n"); + + d_state = STATE_SYNC_SEARCH; + +} + +inline void +gr_ofdm_frame_sink2::enter_have_sync() +{ + if (VERBOSE) + fprintf(stderr, "@ enter_have_sync\n"); + + d_state = STATE_HAVE_SYNC; + + // clear state of demapper + d_byte_offset = 0; + d_partial_byte = 0; + + d_header = 0; + d_headerbytelen_cnt = 0; + + // Resetting PLL + d_freq = 0.0; + d_phase = 0.0; + fill(d_dfe.begin(), d_dfe.end(), gr_complex(1.0,0.0)); +} + +inline void +gr_ofdm_frame_sink2::enter_have_header() +{ + d_state = STATE_HAVE_HEADER; + + // header consists of two 16-bit shorts in network byte order + // payload length is lower 12 bits + // whitener offset is upper 4 bits + d_packetlen = (d_header >> 16) & 0x0fff; + d_packet_whitener_offset = (d_header >> 28) & 0x000f; + d_packetlen_cnt = 0; + + if (VERBOSE) + fprintf(stderr, "@ enter_have_header (payload_len = %d) (offset = %d)\n", + d_packetlen, d_packet_whitener_offset); +} + + +unsigned int gr_ofdm_frame_sink2::demapper(const gr_complex *in, + unsigned char *out) +{ + unsigned int i=0, bytes_produced=0; + gr_complex carrier; + + carrier=gr_expj(d_phase); + + gr_complex accum_error = 0.0; + //while(i < d_occupied_carriers) { + while(i < d_subcarrier_map.size()) { + if(d_nresid > 0) { + d_partial_byte |= d_resid; + d_byte_offset += d_nresid; + d_nresid = 0; + d_resid = 0; + } + + //while((d_byte_offset < 8) && (i < d_occupied_carriers)) { + while((d_byte_offset < 8) && (i < d_subcarrier_map.size())) { + //gr_complex sigrot = in[i]*carrier*d_dfe[i]; + gr_complex sigrot = in[d_subcarrier_map[i]]*carrier*d_dfe[i]; + + if(d_derotated_output != NULL){ + d_derotated_output[i] = sigrot; + } + + unsigned char bits = d_constell->decision_maker(&sigrot); + + gr_complex closest_sym = d_constell->points()[bits]; + + accum_error += sigrot * conj(closest_sym); + + // FIX THE FOLLOWING STATEMENT + if (norm(sigrot)> 0.001) d_dfe[i] += d_eq_gain*(closest_sym/sigrot-d_dfe[i]); + + i++; + + if((8 - d_byte_offset) >= d_nbits) { + d_partial_byte |= bits << (d_byte_offset); + d_byte_offset += d_nbits; + } + else { + d_nresid = d_nbits-(8-d_byte_offset); + int mask = ((1<<(8-d_byte_offset))-1); + d_partial_byte |= (bits & mask) << d_byte_offset; + d_resid = bits >> (8-d_byte_offset); + d_byte_offset += (d_nbits - d_nresid); + } + //printf("demod symbol: %.4f + j%.4f bits: %x partial_byte: %x byte_offset: %d resid: %x nresid: %d\n", + // in[i-1].real(), in[i-1].imag(), bits, d_partial_byte, d_byte_offset, d_resid, d_nresid); + } + + if(d_byte_offset == 8) { + //printf("demod byte: %x \n\n", d_partial_byte); + out[bytes_produced++] = d_partial_byte; + d_byte_offset = 0; + d_partial_byte = 0; + } + } + //std::cerr << "accum_error " << accum_error << std::endl; + + float angle = arg(accum_error); + + d_freq = d_freq - d_freq_gain*angle; + d_phase = d_phase + d_freq - d_phase_gain*angle; + if (d_phase >= 2*M_PI) d_phase -= 2*M_PI; + if (d_phase <0) d_phase += 2*M_PI; + + //if(VERBOSE) + // std::cerr << angle << "\t" << d_freq << "\t" << d_phase << "\t" << std::endl; + + return bytes_produced; +} + + +gr_ofdm_frame_sink2_sptr +gr_make_ofdm_frame_sink2(gr_constellation_sptr constell, + gr_msg_queue_sptr target_queue, unsigned int occupied_carriers, + float phase_gain, float freq_gain) +{ + return gnuradio::get_initial_sptr(new gr_ofdm_frame_sink2(constell, + target_queue, occupied_carriers, + phase_gain, freq_gain)); +} + + +gr_ofdm_frame_sink2::gr_ofdm_frame_sink2(gr_constellation_sptr constell, + gr_msg_queue_sptr target_queue, unsigned int occupied_carriers, + float phase_gain, float freq_gain) + : gr_sync_block ("ofdm_frame_sink2", + gr_make_io_signature2 (2, 2, sizeof(gr_complex)*occupied_carriers, sizeof(char)), + gr_make_io_signature (1, 1, sizeof(gr_complex)*occupied_carriers)), + d_constell(constell), + d_target_queue(target_queue), d_occupied_carriers(occupied_carriers), + d_byte_offset(0), d_partial_byte(0), + d_resid(0), d_nresid(0),d_phase(0),d_freq(0),d_phase_gain(phase_gain),d_freq_gain(freq_gain), + d_eq_gain(0.05) +{ + if (d_constell->dimensionality() != 1) + throw std::runtime_error ("This receiver only works with constellations of dimension 1."); + + std::string carriers = "FE7F"; + + // A bit hacky to fill out carriers to occupied_carriers length + int diff = (d_occupied_carriers - 4*carriers.length()); + while(diff > 7) { + carriers.insert(0, "f"); + carriers.insert(carriers.length(), "f"); + diff -= 8; + } + + // if there's extras left to be processed + // divide remaining to put on either side of current map + // all of this is done to stick with the concept of a carrier map string that + // can be later passed by the user, even though it'd be cleaner to just do this + // on the carrier map itself + int diff_left=0; + int diff_right=0; + + // dictionary to convert from integers to ascii hex representation + char abc[16] = {'0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}; + if(diff > 0) { + char c[2] = {0,0}; + + diff_left = (int)ceil((float)diff/2.0f); // number of carriers to put on the left side + c[0] = abc[(1 << diff_left) - 1]; // convert to bits and move to ASCI integer + carriers.insert(0, c); + + diff_right = diff - diff_left; // number of carriers to put on the right side + c[0] = abc[0xF^((1 << diff_right) - 1)]; // convert to bits and move to ASCI integer + carriers.insert(carriers.length(), c); + } + + // It seemed like such a good idea at the time... + // because we are only dealing with the occupied_carriers + // at this point, the diff_left in the following compensates + // for any offset from the 0th carrier introduced + unsigned int i,j,k; + for(i = 0; i < (d_occupied_carriers/4)+diff_left; i++) { + char c = carriers[i]; + for(j = 0; j < 4; j++) { + k = (strtol(&c, NULL, 16) >> (3-j)) & 0x1; + if(k) { + d_subcarrier_map.push_back(4*i + j - diff_left); + } + } + } + + // make sure we stay in the limit currently imposed by the occupied_carriers + if(d_subcarrier_map.size() > d_occupied_carriers) { + throw std::invalid_argument("gr_ofdm_mapper_bcv: subcarriers allocated exceeds size of occupied carriers"); + } + + d_bytes_out = new unsigned char[d_occupied_carriers]; + d_dfe.resize(occupied_carriers); + fill(d_dfe.begin(), d_dfe.end(), gr_complex(1.0,0.0)); + + d_nbits = d_constell->bits_per_symbol(); + + enter_search(); +} + +gr_ofdm_frame_sink2::~gr_ofdm_frame_sink2 () +{ + delete [] d_bytes_out; +} + + +int +gr_ofdm_frame_sink2::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]; + const char *sig = (const char *) input_items[1]; + unsigned int j = 0; + unsigned int bytes=0; + + // If the output is connected, send it the derotated symbols + if(output_items.size() >= 1) + d_derotated_output = (gr_complex *)output_items[0]; + else + d_derotated_output = NULL; + + if (VERBOSE) + fprintf(stderr,">>> Entering state machine\n"); + + 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); + + if (sig[0]) { // Found it, set up for header decode + enter_have_sync(); + } + break; + + case STATE_HAVE_SYNC: + // only demod after getting the preamble signal; otherwise, the + // equalizer taps will screw with the PLL performance + bytes = demapper(&in[0], d_bytes_out); + + if (VERBOSE) { + if(sig[0]) + printf("ERROR -- Found SYNC in HAVE_SYNC\n"); + fprintf(stderr,"Header Search bitcnt=%d, header=0x%08x\n", + d_headerbytelen_cnt, d_header); + } + + j = 0; + while(j < bytes) { + d_header = (d_header << 8) | (d_bytes_out[j] & 0xFF); + j++; + + if (++d_headerbytelen_cnt == HEADERBYTELEN) { + + 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()){ + enter_have_header(); + + if (VERBOSE) + printf("\nPacket Length: %d\n", d_packetlen); + + while((j < bytes) && (d_packetlen_cnt < d_packetlen)) { + d_packet[d_packetlen_cnt++] = d_bytes_out[j++]; + } + + if(d_packetlen_cnt == d_packetlen) { + gr_message_sptr msg = + gr_make_message(0, d_packet_whitener_offset, 0, d_packetlen); + memcpy(msg->msg(), d_packet, d_packetlen_cnt); + d_target_queue->insert_tail(msg); // send it + msg.reset(); // free it up + + enter_search(); + } + } + else { + enter_search(); // bad header + } + } + } + break; + + case STATE_HAVE_HEADER: + bytes = demapper(&in[0], d_bytes_out); + + if (VERBOSE) { + if(sig[0]) + printf("ERROR -- Found SYNC in HAVE_HEADER at %d, length of %d\n", d_packetlen_cnt, d_packetlen); + fprintf(stderr,"Packet Build\n"); + } + + j = 0; + while(j < bytes) { + d_packet[d_packetlen_cnt++] = d_bytes_out[j++]; + + 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 + + return 1; +} diff --git a/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.h b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.h new file mode 100644 index 000000000..de8c6a37e --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.h @@ -0,0 +1,120 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2011 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. + */ + +#ifndef INCLUDED_GR_OFDM_FRAME_SINK2_H +#define INCLUDED_GR_OFDM_FRAME_SINK2_H + +#include <gr_sync_block.h> +#include <gr_msg_queue.h> +#include <gr_constellation.h> + +class gr_ofdm_frame_sink2; +typedef boost::shared_ptr<gr_ofdm_frame_sink2> gr_ofdm_frame_sink2_sptr; + +gr_ofdm_frame_sink2_sptr +gr_make_ofdm_frame_sink2 (gr_constellation_sptr constell, + gr_msg_queue_sptr target_queue, unsigned int occupied_tones, + float phase_gain=0.25, float freq_gain=0.25*0.25/4.0); + +/*! + * \brief Takes an OFDM symbol in, demaps it into bits of 0's and 1's, packs + * them into packets, and sends to to a message queue sink. + * \ingroup sink_blk + * \ingroup ofdm_blk + * + * NOTE: The mod input parameter simply chooses a pre-defined demapper/slicer. Eventually, + * we want to be able to pass in a reference to an object to do the demapping and slicing + * for a given modulation type. + */ +class gr_ofdm_frame_sink2 : public gr_sync_block +{ + friend gr_ofdm_frame_sink2_sptr + gr_make_ofdm_frame_sink2 (gr_constellation_sptr constell, + gr_msg_queue_sptr target_queue, unsigned int occupied_tones, + float phase_gain, float freq_gain); + + private: + enum state_t {STATE_SYNC_SEARCH, STATE_HAVE_SYNC, STATE_HAVE_HEADER}; + + static const int MAX_PKT_LEN = 4096; + static const int HEADERBYTELEN = 4; + + 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_headerbytelen_cnt; // how many so far + + unsigned char *d_bytes_out; // hold the current bytes produced by the demapper + + unsigned int d_occupied_carriers; + unsigned int d_byte_offset; + unsigned int d_partial_byte; + + unsigned char d_packet[MAX_PKT_LEN]; // assembled payload + 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 + + gr_complex * d_derotated_output; // Pointer to output stream to send deroated symbols out + + gr_constellation_sptr d_constell; + std::vector<gr_complex> d_dfe; + unsigned int d_nbits; + + unsigned char d_resid; + unsigned int d_nresid; + float d_phase; + float d_freq; + float d_phase_gain; + float d_freq_gain; + float d_eq_gain; + + std::vector<int> d_subcarrier_map; + + protected: + gr_ofdm_frame_sink2(gr_constellation_sptr constell, + gr_msg_queue_sptr target_queue, unsigned int occupied_tones, + float phase_gain, float freq_gain); + + void enter_search(); + void enter_have_sync(); + void enter_have_header(); + + bool header_ok() + { + // confirm that two copies of header info are identical + return ((d_header >> 16) ^ (d_header & 0xffff)) == 0; + } + + unsigned char slicer(const gr_complex x); + unsigned int demapper(const gr_complex *in, + unsigned char *out); + + public: + ~gr_ofdm_frame_sink2(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_GR_OFDM_FRAME_SINK2_H */ diff --git a/gnuradio-core/src/lib/general/gr_costas_loop_cc.i b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.i index 488cab370..8fa320089 100644 --- a/gnuradio-core/src/lib/general/gr_costas_loop_cc.i +++ b/gnuradio-core/src/lib/general/gr_ofdm_frame_sink2.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005,2006 Free Software Foundation, Inc. + * Copyright 2007,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,25 +20,20 @@ * Boston, MA 02110-1301, USA. */ -GR_SWIG_BLOCK_MAGIC(gr,costas_loop_cc); +GR_SWIG_BLOCK_MAGIC(gr,ofdm_frame_sink2); -gr_costas_loop_cc_sptr -gr_make_costas_loop_cc (float alpha, float beta, - float max_freq, float min_freq, - int order - ) throw (std::invalid_argument); +gr_ofdm_frame_sink2_sptr +gr_make_ofdm_frame_sink2(gr_constellation_sptr constell, + gr_msg_queue_sptr target_queue, unsigned int occupied_tones, + float phase_gain=0.25, float freq_gain=0.25*0.25/4); - -class gr_costas_loop_cc : public gr_sync_block +class gr_ofdm_frame_sink2 : public gr_sync_block { - private: - gr_costas_loop_cc (float alpha, float beta, - float max_freq, float min_freq, int order); + protected: + gr_ofdm_frame_sink2(gr_constellation_sptr constell, + gr_msg_queue_sptr target_queue, unsigned int occupied_tones, + float phase_gain, float freq_gain); public: - void set_alpha(float alpha); - float alpha(); - void set_beta(float beta); - float beta(); - float freq(); + ~gr_ofdm_frame_sink2(); }; diff --git a/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.cc b/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.cc index 370b029cd..cc4aba0cb 100644 --- a/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.cc +++ b/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.cc @@ -113,7 +113,7 @@ gr_ofdm_mapper_bcv::gr_ofdm_mapper_bcv (const std::vector<gr_complex> &constella throw std::invalid_argument("gr_ofdm_mapper_bcv: subcarriers allocated exceeds size of occupied carriers"); } - d_nbits = (unsigned long)ceil(log10(d_constellation.size()) / log10(2.0)); + d_nbits = (unsigned long)ceil(log10(float(d_constellation.size())) / log10(2.0)); } gr_ofdm_mapper_bcv::~gr_ofdm_mapper_bcv(void) diff --git a/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.i b/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.i index 30c692926..3850220ba 100644 --- a/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.i +++ b/gnuradio-core/src/lib/general/gr_ofdm_mapper_bcv.i @@ -26,7 +26,7 @@ gr_ofdm_mapper_bcv_sptr gr_make_ofdm_mapper_bcv (const std::vector<gr_complex> &constellation, unsigned int msgq_limit, unsigned int bits_per_symbol, - unsigned int fft_length); + unsigned int fft_length) throw(std::exception); class gr_ofdm_mapper_bcv : public gr_sync_block diff --git a/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.cc b/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.cc index 19ab316a1..583e0eb70 100644 --- a/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.cc +++ b/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2006,2010 Free Software Foundation, Inc. + * Copyright 2006,2010,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -30,22 +30,24 @@ #include <math.h> #include <gr_math.h> -#define M_TWOPI (2*M_PI) +#ifndef M_TWOPI +#define M_TWOPI (2.0f*M_PI) +#endif gr_pll_carriertracking_cc_sptr -gr_make_pll_carriertracking_cc (float alpha, float beta, float max_freq, float min_freq) +gr_make_pll_carriertracking_cc (float loop_bw, float max_freq, float min_freq) { - return gnuradio::get_initial_sptr(new gr_pll_carriertracking_cc (alpha, beta, max_freq, min_freq)); + return gnuradio::get_initial_sptr(new gr_pll_carriertracking_cc (loop_bw, max_freq, min_freq)); } -gr_pll_carriertracking_cc::gr_pll_carriertracking_cc (float alpha, float beta, float max_freq, float min_freq) +gr_pll_carriertracking_cc::gr_pll_carriertracking_cc (float loop_bw, + float max_freq, + float min_freq) : gr_sync_block ("pll_carriertracking_cc", gr_make_io_signature (1, 1, sizeof (gr_complex)), gr_make_io_signature (1, 1, sizeof (gr_complex))), - d_alpha(alpha), d_beta(beta), - d_max_freq(max_freq), d_min_freq(min_freq), - d_phase(0), d_freq((max_freq+min_freq)/2), - d_locksig(0),d_lock_threshold(0),d_squelch_enable(false) + gri_control_loop(loop_bw, max_freq, min_freq), + d_locksig(0), d_lock_threshold(0), d_squelch_enable(false) { } @@ -72,7 +74,7 @@ gr_pll_carriertracking_cc::phase_detector(gr_complex sample,float ref_phase) bool gr_pll_carriertracking_cc::lock_detector(void) { - return (fabs(d_locksig) > d_lock_threshold); + return (fabsf(d_locksig) > d_lock_threshold); } bool @@ -100,17 +102,16 @@ gr_pll_carriertracking_cc::work (int noutput_items, for (int i = 0; i < noutput_items; i++){ error = phase_detector(iptr[i],d_phase); - - d_freq = d_freq + d_beta * error; - d_phase = mod_2pi(d_phase + d_freq + d_alpha * error); - - if (d_freq > d_max_freq) - d_freq = d_max_freq; - else if (d_freq < d_min_freq) - d_freq = d_min_freq; - gr_sincosf(d_phase,&t_imag,&t_real); - optr[i] = iptr[i] * gr_complex(t_real,-t_imag); - d_locksig = d_locksig * (1.0 - d_alpha) + d_alpha*(iptr[i].real() * t_real + iptr[i].imag() * t_imag); + + advance_loop(error); + phase_wrap(); + frequency_limit(); + + gr_sincosf(d_phase, &t_imag, &t_real); + optr[i] = iptr[i] * gr_complex(t_real, -t_imag); + + d_locksig = d_locksig * (1.0 - d_alpha) + \ + d_alpha*(iptr[i].real() * t_real + iptr[i].imag() * t_imag); if ((d_squelch_enable) && !lock_detector()) optr[i] = 0; diff --git a/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.h b/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.h index 195f06016..bcdf543a4 100644 --- a/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.h +++ b/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004,206 Free Software Foundation, Inc. + * Copyright 2004,2006,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -24,12 +24,14 @@ #define INCLUDED_GR_PLL_CARRIERTRACKING_CC_H #include <gr_sync_block.h> +#include <gri_control_loop.h> class gr_pll_carriertracking_cc; typedef boost::shared_ptr<gr_pll_carriertracking_cc> gr_pll_carriertracking_cc_sptr; -gr_pll_carriertracking_cc_sptr gr_make_pll_carriertracking_cc (float alpha, float beta, - float max_freq, float min_freq); +gr_pll_carriertracking_cc_sptr gr_make_pll_carriertracking_cc (float loop_bw, + float max_freq, + float min_freq); /*! * \brief Implements a PLL which locks to the input frequency and outputs the * input signal mixed with that carrier. @@ -41,19 +43,20 @@ gr_pll_carriertracking_cc_sptr gr_make_pll_carriertracking_cc (float alpha, floa * the input and outputs that signal, downconverted to DC * * All settings max_freq and min_freq are in terms of radians per sample, - * NOT HERTZ. Alpha is the phase gain (first order, units of radians per radian) - * and beta is the frequency gain (second order, units of radians per sample per radian) + * NOT HERTZ. The loop bandwidth determins the lock range and should be set + * around pi/200 -- 2pi/100. * \sa gr_pll_freqdet_cf, gr_pll_carriertracking_cc */ -class gr_pll_carriertracking_cc : public gr_sync_block +class gr_pll_carriertracking_cc : public gr_sync_block, public gri_control_loop { - friend gr_pll_carriertracking_cc_sptr gr_make_pll_carriertracking_cc (float alpha, float beta, - float max_freq, float min_freq); + friend gr_pll_carriertracking_cc_sptr gr_make_pll_carriertracking_cc (float loop_bw, + float max_freq, + float min_freq); - float d_alpha,d_beta,d_max_freq,d_min_freq,d_phase,d_freq,d_locksig,d_lock_threshold; + float d_locksig,d_lock_threshold; bool d_squelch_enable; - gr_pll_carriertracking_cc (float alpha, float beta, float max_freq, float min_freq); + gr_pll_carriertracking_cc (float loop_bw, float max_freq, float min_freq); int work (int noutput_items, gr_vector_const_void_star &input_items, diff --git a/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.i b/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.i index 3e84fccbe..d309111b2 100644 --- a/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.i +++ b/gnuradio-core/src/lib/general/gr_pll_carriertracking_cc.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2005,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -23,13 +23,14 @@ GR_SWIG_BLOCK_MAGIC(gr,pll_carriertracking_cc); gr_pll_carriertracking_cc_sptr -gr_make_pll_carriertracking_cc (float alpha, float beta, - float max_freq, float min_freq); +gr_make_pll_carriertracking_cc (float loop_bw, + float max_freq, + float min_freq); -class gr_pll_carriertracking_cc : public gr_sync_block +class gr_pll_carriertracking_cc : public gr_sync_block, public gri_control_loop { private: - gr_pll_carriertracking_cc (float alpha, float beta, float max_freq, float min_freq); + gr_pll_carriertracking_cc (float loop_bw, float max_freq, float min_freq); public: bool lock_detector(void); bool squelch_enable(bool); diff --git a/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.cc b/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.cc index 1f17f2afc..0ae773e6e 100644 --- a/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.cc +++ b/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004,2010 Free Software Foundation, Inc. + * Copyright 2004,2010,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,8 +20,6 @@ * Boston, MA 02110-1301, USA. */ -// WARNING: this file is machine generated. Edits will be over written - #ifdef HAVE_CONFIG_H #include "config.h" #endif @@ -31,21 +29,21 @@ #include <math.h> #include <gr_math.h> -#define M_TWOPI (2*M_PI) +#ifndef M_TWOPI +#define M_TWOPI (2.0f*M_PI) +#endif gr_pll_freqdet_cf_sptr -gr_make_pll_freqdet_cf (float alpha, float beta, float max_freq, float min_freq) +gr_make_pll_freqdet_cf (float loop_bw, float max_freq, float min_freq) { - return gnuradio::get_initial_sptr(new gr_pll_freqdet_cf (alpha, beta, max_freq, min_freq)); + return gnuradio::get_initial_sptr(new gr_pll_freqdet_cf (loop_bw, max_freq, min_freq)); } -gr_pll_freqdet_cf::gr_pll_freqdet_cf (float alpha, float beta, float max_freq, float min_freq) +gr_pll_freqdet_cf::gr_pll_freqdet_cf (float loop_bw, float max_freq, float min_freq) : gr_sync_block ("pll_freqdet_cf", gr_make_io_signature (1, 1, sizeof (gr_complex)), gr_make_io_signature (1, 1, sizeof (float))), - d_alpha(alpha), d_beta(beta), - d_max_freq(max_freq), d_min_freq(min_freq), - d_phase(0), d_freq((max_freq+min_freq)/2) + gri_control_loop(loop_bw, max_freq, min_freq) { } @@ -70,8 +68,8 @@ gr_pll_freqdet_cf::phase_detector(gr_complex sample,float ref_phase) int gr_pll_freqdet_cf::work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) { const gr_complex *iptr = (gr_complex *) input_items[0]; float *optr = (float *) output_items[0]; @@ -82,13 +80,10 @@ gr_pll_freqdet_cf::work (int noutput_items, while (size-- > 0) { error = phase_detector(*iptr++,d_phase); - d_freq = d_freq + d_beta * error; - d_phase = mod_2pi(d_phase + d_freq + d_alpha * error); - - if (d_freq > d_max_freq) - d_freq = d_max_freq; - else if (d_freq < d_min_freq) - d_freq = d_min_freq; + advance_loop(error); + phase_wrap(); + frequency_limit(); + *optr++ = d_freq; } return noutput_items; diff --git a/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.h b/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.h index 0581c8724..0da9fc5c7 100644 --- a/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.h +++ b/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -24,12 +24,14 @@ #define INCLUDED_GR_PLL_FREQDET_CF_H #include <gr_sync_block.h> +#include <gri_control_loop.h> class gr_pll_freqdet_cf; typedef boost::shared_ptr<gr_pll_freqdet_cf> gr_pll_freqdet_cf_sptr; -gr_pll_freqdet_cf_sptr gr_make_pll_freqdet_cf (float alpha, float beta, - float max_freq, float min_freq); +gr_pll_freqdet_cf_sptr gr_make_pll_freqdet_cf (float loop_bw, + float max_freq, + float min_freq); /*! * \brief Implements a PLL which locks to the input frequency and outputs * an estimate of that frequency. Useful for FM Demod. @@ -40,24 +42,24 @@ gr_pll_freqdet_cf_sptr gr_make_pll_freqdet_cf (float alpha, float beta, * This PLL locks onto a [possibly noisy] reference carrier on * the input and outputs an estimate of that frequency in radians per sample. * All settings max_freq and min_freq are in terms of radians per sample, - * NOT HERTZ. Alpha is the phase gain (first order, units of radians per radian) - * and beta is the frequency gain (second order, units of radians per sample per radian) + * NOT HERTZ. The loop bandwidth determins the lock range and should be set + * around pi/200 -- 2pi/100. * \sa gr_pll_refout_cc, gr_pll_carriertracking_cc */ -class gr_pll_freqdet_cf : public gr_sync_block +class gr_pll_freqdet_cf : public gr_sync_block, public gri_control_loop { - friend gr_pll_freqdet_cf_sptr gr_make_pll_freqdet_cf (float alpha, float beta, - float max_freq, float min_freq); + friend gr_pll_freqdet_cf_sptr gr_make_pll_freqdet_cf (float loop_bw, + float max_freq, + float min_freq); - float d_alpha,d_beta,d_max_freq,d_min_freq,d_phase,d_freq; - gr_pll_freqdet_cf (float alpha, float beta, float max_freq, float min_freq); + float mod_2pi (float in); + gr_pll_freqdet_cf (float loop_bw, float max_freq, float min_freq); int work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items); private: - float mod_2pi (float in); float phase_detector(gr_complex sample,float ref_phase); }; diff --git a/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.i b/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.i index b730f037a..f93e6e37e 100644 --- a/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.i +++ b/gnuradio-core/src/lib/general/gr_pll_freqdet_cf.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2005,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -22,11 +22,12 @@ GR_SWIG_BLOCK_MAGIC(gr,pll_freqdet_cf) - gr_pll_freqdet_cf_sptr gr_make_pll_freqdet_cf (float alpha, float beta, - float max_freq, float min_freq); + gr_pll_freqdet_cf_sptr gr_make_pll_freqdet_cf (float loop_bw, + float max_freq, + float min_freq); -class gr_pll_freqdet_cf : public gr_sync_block +class gr_pll_freqdet_cf : public gr_sync_block, public gri_control_loop { private: - gr_pll_freqdet_cf (float alpha, float beta, float max_freq, float min_freq); + gr_pll_freqdet_cf (float loop_bw, float max_freq, float min_freq); }; diff --git a/gnuradio-core/src/lib/general/gr_pll_refout_cc.cc b/gnuradio-core/src/lib/general/gr_pll_refout_cc.cc index 8a7fbf88b..2b480fcf1 100644 --- a/gnuradio-core/src/lib/general/gr_pll_refout_cc.cc +++ b/gnuradio-core/src/lib/general/gr_pll_refout_cc.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004,2010 Free Software Foundation, Inc. + * Copyright 2004,2010,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,8 +20,6 @@ * Boston, MA 02110-1301, USA. */ -// WARNING: this file is machine generated. Edits will be over written - #ifdef HAVE_CONFIG_H #include "config.h" #endif @@ -32,21 +30,21 @@ #include <math.h> #include <gr_math.h> -#define M_TWOPI (2*M_PI) +#ifndef M_TWOPI +#define M_TWOPI (2.0f*M_PI) +#endif gr_pll_refout_cc_sptr -gr_make_pll_refout_cc (float alpha, float beta, float max_freq, float min_freq) +gr_make_pll_refout_cc (float loop_bw, float max_freq, float min_freq) { - return gnuradio::get_initial_sptr(new gr_pll_refout_cc (alpha, beta, max_freq, min_freq)); + return gnuradio::get_initial_sptr(new gr_pll_refout_cc (loop_bw, max_freq, min_freq)); } -gr_pll_refout_cc::gr_pll_refout_cc (float alpha, float beta, float max_freq, float min_freq) +gr_pll_refout_cc::gr_pll_refout_cc (float loop_bw, float max_freq, float min_freq) : gr_sync_block ("pll_refout_cc", gr_make_io_signature (1, 1, sizeof (gr_complex)), gr_make_io_signature (1, 1, sizeof (gr_complex))), - d_alpha(alpha), d_beta(beta), - d_max_freq(max_freq), d_min_freq(min_freq), - d_phase(0), d_freq((max_freq+min_freq)/2) + gri_control_loop(loop_bw, max_freq, min_freq) { } @@ -84,13 +82,10 @@ gr_pll_refout_cc::work (int noutput_items, while (size-- > 0) { error = phase_detector(*iptr++,d_phase); - d_freq = d_freq + d_beta * error; - d_phase = mod_2pi(d_phase + d_freq + d_alpha * error); + advance_loop(error); + phase_wrap(); + frequency_limit(); - if (d_freq > d_max_freq) - d_freq = d_max_freq; - else if (d_freq < d_min_freq) - d_freq = d_min_freq; gr_sincosf(d_phase,&t_imag,&t_real); *optr++ = gr_complex(t_real,t_imag); } diff --git a/gnuradio-core/src/lib/general/gr_pll_refout_cc.h b/gnuradio-core/src/lib/general/gr_pll_refout_cc.h index 3263c957f..d3e45882b 100644 --- a/gnuradio-core/src/lib/general/gr_pll_refout_cc.h +++ b/gnuradio-core/src/lib/general/gr_pll_refout_cc.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2004 Free Software Foundation, Inc. + * Copyright 2004,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,18 +20,17 @@ * Boston, MA 02110-1301, USA. */ - - #ifndef INCLUDED_GR_PLL_REFOUT_CC_H #define INCLUDED_GR_PLL_REFOUT_CC_H #include <gr_sync_block.h> +#include <gri_control_loop.h> class gr_pll_refout_cc; typedef boost::shared_ptr<gr_pll_refout_cc> gr_pll_refout_cc_sptr; -gr_pll_refout_cc_sptr gr_make_pll_refout_cc (float alpha, float beta, - float max_freq, float min_freq); +gr_pll_refout_cc_sptr gr_make_pll_refout_cc (float loop_bw, + float max_freq, float min_freq); /*! * \brief Implements a PLL which locks to the input frequency and outputs a carrier * \ingroup sync_blk @@ -43,24 +42,23 @@ gr_pll_refout_cc_sptr gr_make_pll_refout_cc (float alpha, float beta, * aligned to it. * * All settings max_freq and min_freq are in terms of radians per sample, - * NOT HERTZ. Alpha is the phase gain (first order, units of radians per radian) - * and beta is the frequency gain (second order, units of radians per sample per radian) + * NOT HERTZ. The loop bandwidth determins the lock range and should be set + * around pi/200 -- 2pi/100. * \sa gr_pll_freqdet_cf, gr_pll_carriertracking_cc */ -class gr_pll_refout_cc : public gr_sync_block +class gr_pll_refout_cc : public gr_sync_block, public gri_control_loop { - friend gr_pll_refout_cc_sptr gr_make_pll_refout_cc (float alpha, float beta, - float max_freq, float min_freq); + friend gr_pll_refout_cc_sptr gr_make_pll_refout_cc (float loop_bw, + float max_freq, float min_freq); - float d_alpha,d_beta,d_max_freq,d_min_freq,d_phase,d_freq; - gr_pll_refout_cc (float alpha, float beta, float max_freq, float min_freq); + gr_pll_refout_cc (float loop_bw, float max_freq, float min_freq); int work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items); private: float mod_2pi (float in); - float phase_detector(gr_complex sample,float ref_phase); + float phase_detector(gr_complex sample, float ref_phase); }; #endif diff --git a/gnuradio-core/src/lib/general/gr_pll_refout_cc.i b/gnuradio-core/src/lib/general/gr_pll_refout_cc.i index 026a684ed..834ea1e36 100644 --- a/gnuradio-core/src/lib/general/gr_pll_refout_cc.i +++ b/gnuradio-core/src/lib/general/gr_pll_refout_cc.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2005,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -22,11 +22,11 @@ GR_SWIG_BLOCK_MAGIC(gr,pll_refout_cc) - gr_pll_refout_cc_sptr gr_make_pll_refout_cc (float alpha, float beta, - float max_freq, float min_freq); +gr_pll_refout_cc_sptr gr_make_pll_refout_cc (float loop_bw, + float max_freq, float min_freq); -class gr_pll_refout_cc : public gr_sync_block +class gr_pll_refout_cc : public gr_sync_block, public gri_control_loop { private: - gr_pll_refout_cc (float alpha, float beta, float max_freq, float min_freq); + gr_pll_refout_cc (float loop_bw, float max_freq, float min_freq); }; diff --git a/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.h b/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.h index a29acd628..df6de93d5 100644 --- a/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.h +++ b/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.h @@ -44,6 +44,8 @@ class gr_quadrature_demod_cf : public gr_sync_block float d_gain; public: + void set_gain(float gain) { d_gain = gain; } + float gain() const { return d_gain; } int work (int noutput_items, gr_vector_const_void_star &input_items, diff --git a/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.i b/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.i index fbd45dcf8..d9f338daa 100644 --- a/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.i +++ b/gnuradio-core/src/lib/general/gr_quadrature_demod_cf.i @@ -27,4 +27,8 @@ gr_quadrature_demod_cf_sptr gr_make_quadrature_demod_cf (float gain); class gr_quadrature_demod_cf : public gr_sync_block { gr_quadrature_demod_cf (float gain); + +public: + void set_gain(float gain) { d_gain = gain; } + float gain() const { return d_gain; } }; diff --git a/gnuradio-core/src/lib/general/gr_throttle.cc b/gnuradio-core/src/lib/general/gr_throttle.cc index 3189e01c0..a24b1da8c 100644 --- a/gnuradio-core/src/lib/general/gr_throttle.cc +++ b/gnuradio-core/src/lib/general/gr_throttle.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005,2010 Free Software Foundation, Inc. + * Copyright 2005-2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -26,92 +26,64 @@ #include <gr_throttle.h> #include <gr_io_signature.h> -#include <errno.h> -#include <stdio.h> -#include <math.h> -#include <string.h> -#ifdef HAVE_TIME_H -#include <time.h> -#endif -#if !defined(HAVE_NANOSLEEP) && defined(HAVE_SSLEEP) -#include <windows.h> -#endif - +#include <cstring> +#include <boost/thread/thread.hpp> -#ifdef HAVE_NANOSLEEP -void -gr_nanosleep(struct timespec *ts) -{ - struct timespec *req = ts; - struct timespec rem; - int r = nanosleep(req, &rem); - while (r < 0 && errno == EINTR){ - req = &rem; - r = nanosleep(req, &rem); - } - if (r < 0) - perror ("gr_nanosleep"); -} -#endif - -gr_throttle_sptr -gr_make_throttle(size_t itemsize, double samples_per_sec) -{ - return gnuradio::get_initial_sptr(new gr_throttle(itemsize, samples_per_sec)); -} +class gr_throttle_impl : public gr_throttle{ +public: + gr_throttle_impl(size_t itemsize): + gr_sync_block("throttle", + gr_make_io_signature(1, 1, itemsize), + gr_make_io_signature(1, 1, itemsize)), + d_itemsize(itemsize) + { + /* NOP */ + } -gr_throttle::gr_throttle(size_t itemsize, double samples_per_sec) - : gr_sync_block("throttle", - gr_make_io_signature(1, 1, itemsize), - gr_make_io_signature(1, 1, itemsize)), - d_itemsize(itemsize), d_samples_per_sec(samples_per_sec), - d_total_samples(0) -{ -#ifdef HAVE_GETTIMEOFDAY - gettimeofday(&d_start, 0); -#endif -} + void set_sample_rate(double rate){ + //changing the sample rate performs a reset of state params + d_start = boost::get_system_time(); + d_total_samples = 0; + d_samps_per_tick = rate/boost::posix_time::time_duration::ticks_per_second(); + d_samps_per_us = rate/1e6; + } -gr_throttle::~gr_throttle() -{ -} + int work ( + int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items + ){ + //calculate the expected number of samples to have passed through + boost::system_time now = boost::get_system_time(); + boost::int64_t ticks = (now - d_start).ticks(); + uint64_t expected_samps = uint64_t(d_samps_per_tick*ticks); -int -gr_throttle::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]; - char *out = (char *) output_items[0]; + //if the expected samples was less, we need to throttle back + if (d_total_samples > expected_samps){ + boost::this_thread::sleep(boost::posix_time::microseconds( + long((d_total_samples - expected_samps)/d_samps_per_us) + )); + } -#if defined(HAVE_GETTIMEOFDAY) - // - // If our average sample rate exceeds our target sample rate, - // delay long enough to reduce to our target rate. - // - struct timeval now; - gettimeofday(&now, 0); - long t_usec = now.tv_usec - d_start.tv_usec; - long t_sec = now.tv_sec - d_start.tv_sec; - double t = (double)t_sec + (double)t_usec * 1e-6; - if (t < 1e-6) // avoid unlikely divide by zero - t = 1e-6; + //copy all samples output[i] <= input[i] + const char *in = (const char *) input_items[0]; + char *out = (char *) output_items[0]; + std::memcpy(out, in, noutput_items * d_itemsize); + d_total_samples += noutput_items; + return noutput_items; + } - double actual_samples_per_sec = d_total_samples / t; - if (actual_samples_per_sec > d_samples_per_sec){ // need to delay - double delay = d_total_samples / d_samples_per_sec - t; -#ifdef HAVE_NANOSLEEP - struct timespec ts; - ts.tv_sec = (time_t)floor(delay); - ts.tv_nsec = (long)((delay - floor(delay)) * 1e9); - gr_nanosleep(&ts); -#elif HAVE_SSLEEP - Sleep( (DWORD)(delay*1000) ); -#endif - } -#endif +private: + boost::system_time d_start; + size_t d_itemsize; + uint64_t d_total_samples; + double d_samps_per_tick, d_samps_per_us; +}; - memcpy(out, in, noutput_items * d_itemsize); - d_total_samples += noutput_items; - return noutput_items; +gr_throttle::sptr +gr_make_throttle(size_t itemsize, double samples_per_sec) +{ + gr_throttle::sptr throttle(new gr_throttle_impl(itemsize)); + throttle->set_sample_rate(samples_per_sec); + return throttle; } diff --git a/gnuradio-core/src/lib/general/gr_throttle.h b/gnuradio-core/src/lib/general/gr_throttle.h index a1c9773c9..a82821f77 100644 --- a/gnuradio-core/src/lib/general/gr_throttle.h +++ b/gnuradio-core/src/lib/general/gr_throttle.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2005-2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -23,15 +23,6 @@ #define INCLUDED_GR_THROTTLE_H #include <gr_sync_block.h> -#ifdef HAVE_SYS_TIME_H -#include <sys/time.h> -#endif - -class gr_throttle; -typedef boost::shared_ptr<gr_throttle> gr_throttle_sptr; - - -gr_throttle_sptr gr_make_throttle(size_t itemsize, double samples_per_sec); /*! * \brief throttle flow of samples such that the average rate does not exceed samples_per_sec. @@ -44,25 +35,15 @@ gr_throttle_sptr gr_make_throttle(size_t itemsize, double samples_per_sec); * controlling the rate of samples. That should be controlled by a * source or sink tied to sample clock. E.g., a USRP or audio card. */ -class gr_throttle : public gr_sync_block +class gr_throttle : virtual public gr_sync_block { - friend gr_throttle_sptr gr_make_throttle(size_t itemsize, double samples_per_sec); - size_t d_itemsize; - double d_samples_per_sec; - double d_total_samples; -#ifdef HAVE_SYS_TIME_H - struct timeval d_start; -#endif - - gr_throttle(size_t itemsize, double samples_per_sec); - public: - ~gr_throttle(); + typedef boost::shared_ptr<gr_throttle> sptr; - int work (int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); + //! Sets the sample rate in samples per second + virtual void set_sample_rate(double rate) = 0; }; - + +gr_throttle::sptr gr_make_throttle(size_t itemsize, double samples_per_sec); #endif /* INCLUDED_GR_THROTTLE_H */ diff --git a/gnuradio-core/src/lib/general/gr_throttle.i b/gnuradio-core/src/lib/general/gr_throttle.i index 21f7703ef..0b1ec165f 100644 --- a/gnuradio-core/src/lib/general/gr_throttle.i +++ b/gnuradio-core/src/lib/general/gr_throttle.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2005 Free Software Foundation, Inc. + * Copyright 2005-2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -20,11 +20,10 @@ * Boston, MA 02110-1301, USA. */ -GR_SWIG_BLOCK_MAGIC(gr,throttle); +%{ +#include <gr_throttle.h> +%} -gr_throttle_sptr gr_make_throttle (size_t itemsize, double samples_per_sec); +GR_SWIG_BLOCK_MAGIC(gr,throttle); -class gr_throttle : public gr_sync_block -{ - gr_throttle (size_t itemsize, double samples_per_sec); -}; +%include <gr_throttle.h> diff --git a/gnuradio-core/src/lib/general/gr_unpack_k_bits_bb.i b/gnuradio-core/src/lib/general/gr_unpack_k_bits_bb.i index 5f9a8f134..2e9aa406b 100644 --- a/gnuradio-core/src/lib/general/gr_unpack_k_bits_bb.i +++ b/gnuradio-core/src/lib/general/gr_unpack_k_bits_bb.i @@ -22,7 +22,7 @@ GR_SWIG_BLOCK_MAGIC(gr,unpack_k_bits_bb) -gr_unpack_k_bits_bb_sptr gr_make_unpack_k_bits_bb (int k); +gr_unpack_k_bits_bb_sptr gr_make_unpack_k_bits_bb (int k) throw(std::exception); class gr_unpack_k_bits_bb : public gr_sync_interpolator { diff --git a/gnuradio-core/src/lib/general/gri_control_loop.cc b/gnuradio-core/src/lib/general/gri_control_loop.cc new file mode 100644 index 000000000..affdeefc9 --- /dev/null +++ b/gnuradio-core/src/lib/general/gri_control_loop.cc @@ -0,0 +1,183 @@ +/* -*- c++ -*- */ +/* + * 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. + */ + +#include <gri_control_loop.h> +#include <gr_math.h> +#include <stdexcept> + +#define M_TWOPI (2.0f*M_PI) + +gri_control_loop::gri_control_loop(float loop_bw, + float max_freq, float min_freq) + : d_phase(0), d_freq(0), d_max_freq(max_freq), d_min_freq(min_freq) +{ + // 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); +} + +gri_control_loop::~gri_control_loop() +{ +} + +void +gri_control_loop::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 +gri_control_loop::advance_loop(float error) +{ + d_freq = d_freq + d_beta * error; + d_phase = d_phase + d_freq + d_alpha * error; +} + + +void +gri_control_loop::phase_wrap() +{ + while(d_phase>M_TWOPI) + d_phase -= M_TWOPI; + while(d_phase<-M_TWOPI) + d_phase += M_TWOPI; +} + +void +gri_control_loop::frequency_limit() +{ + if (d_freq > d_max_freq) + d_freq = d_max_freq; + else if (d_freq < d_min_freq) + d_freq = d_min_freq; +} + +/******************************************************************* + SET FUNCTIONS +*******************************************************************/ + +void +gri_control_loop::set_loop_bandwidth(float bw) +{ + if(bw < 0) { + throw std::out_of_range ("gri_control_loop: invalid bandwidth. Must be >= 0."); + } + + d_loop_bw = bw; + update_gains(); +} + +void +gri_control_loop::set_damping_factor(float df) +{ + if(df < 0 || df > 1.0) { + throw std::out_of_range ("gri_control_loop: invalid damping factor. Must be in [0,1]."); + } + + d_damping = df; + update_gains(); +} + +void +gri_control_loop::set_alpha(float alpha) +{ + if(alpha < 0 || alpha > 1.0) { + throw std::out_of_range ("gri_control_loop: invalid alpha. Must be in [0,1]."); + } + d_alpha = alpha; +} + +void +gri_control_loop::set_beta(float beta) +{ + if(beta < 0 || beta > 1.0) { + throw std::out_of_range ("gri_control_loop: invalid beta. Must be in [0,1]."); + } + d_beta = beta; +} + +void +gri_control_loop::set_frequency(float freq) +{ + if(freq > d_max_freq) + d_freq = d_min_freq; + else if(freq < d_min_freq) + d_freq = d_max_freq; + else + d_freq = freq; +} + +void +gri_control_loop::set_phase(float phase) +{ + d_phase = phase; + while(d_phase>M_TWOPI) + d_phase -= M_TWOPI; + while(d_phase<-M_TWOPI) + d_phase += M_TWOPI; +} + + +/******************************************************************* + GET FUNCTIONS +*******************************************************************/ + + +float +gri_control_loop::get_loop_bandwidth() const +{ + return d_loop_bw; +} + +float +gri_control_loop::get_damping_factor() const +{ + return d_damping; +} + +float +gri_control_loop::get_alpha() const +{ + return d_alpha; +} + +float +gri_control_loop::get_beta() const +{ + return d_beta; +} + +float +gri_control_loop::get_frequency() const +{ + return d_freq; +} + +float +gri_control_loop::get_phase() const +{ + return d_phase; +} diff --git a/gnuradio-core/src/lib/general/gri_control_loop.h b/gnuradio-core/src/lib/general/gri_control_loop.h new file mode 100644 index 000000000..a85625bbd --- /dev/null +++ b/gnuradio-core/src/lib/general/gri_control_loop.h @@ -0,0 +1,201 @@ +/* -*- c++ -*- */ +/* + * 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. + */ + +#ifndef GRI_CONTROL_LOOP +#define GRI_CONTROL_LOOP + +class gri_control_loop +{ + protected: + float d_phase, d_freq; + float d_max_freq, d_min_freq; + float d_damping, d_loop_bw; + float d_alpha, d_beta; + + public: + gri_control_loop(float loop_bw, float max_freq, float min_freq); + virtual ~gri_control_loop(); + + /*! \brief update the system gains from the loop bandwidth and damping factor + * + * 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(); + + /*! \brief update the system gains from the loop bandwidth and damping factor + * + * 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 advance_loop(float error); + + /*! \brief Keep the phase between -2pi and 2pi + * + * This function keeps the phase between -2pi and 2pi. If the phase + * is greater than 2pi by d, it wraps around to be -2pi+d; similarly if + * it is less than -2pi by d, it wraps around to 2pi-d. + * + * This function should be called after advance_loop to keep the phase + * in a good operating region. It is set as a separate method in case + * another way is desired as this is fairly heavy-handed. + */ + void phase_wrap(); + + /*! \brief Keep the frequency between d_min_freq and d_max_freq + * + * This function keeps the frequency between d_min_freq and d_max_freq. + * If the frequency is greater than d_max_freq, it is set to d_max_freq. + * If the frequency is less than d_min_freq, it is set to d_min_freq. + * + * This function should be called after advance_loop to keep the frequency + * in the specified region. It is set as a separate method in case + * another way is desired as this is fairly heavy-handed. + */ + void frequency_limit(); + + /******************************************************************* + 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); + + /*! + * \brief Set the Costas loop's frequency. + * + * Set's the Costas Loop's frequency. While this is normally updated by the + * inner loop of the algorithm, it could be useful to manually initialize, + * set, or reset this under certain circumstances. + * + * \param freq (float) new frequency + * + */ + void set_frequency(float freq); + + /*! + * \brief Set the Costas loop's phase. + * + * Set's the Costas Loop's phase. While this is normally updated by the + * inner loop of the algorithm, it could be useful to manually initialize, + * set, or reset this under certain circumstances. + * + * \param phase (float) new phase + * + */ + void set_phase(float phase); + + + /******************************************************************* + 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 Get the Costas loop's frequency estimate + */ + float get_frequency() const; + + /*! + * \brief Get the Costas loop's phase estimate + */ + float get_phase() const; +}; + +#endif /* GRI_CONTROL_LOOP */ diff --git a/gnuradio-core/src/lib/general/gri_control_loop.i b/gnuradio-core/src/lib/general/gri_control_loop.i new file mode 100644 index 000000000..67f8838cb --- /dev/null +++ b/gnuradio-core/src/lib/general/gri_control_loop.i @@ -0,0 +1,57 @@ +/* -*- c++ -*- */ +/* + * 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. + */ + + +class gri_control_loop +{ + public: + gri_control_loop(float loop_bw, float max_freq, float min_freq); + virtual ~gri_control_loop(); + + void update_gains(); + void advance_loop(float error); + void phase_wrap(); + void frequency_limit(); + + /******************************************************************* + SET FUNCTIONS + *******************************************************************/ + + void set_loop_bandwidth(float bw); + void set_damping_factor(float df); + void set_alpha(float alpha); + void set_beta(float beta); + void set_frequency(float freq); + void set_phase(float phase); + + + /******************************************************************* + GET FUNCTIONS + *******************************************************************/ + + float get_loop_bandwidth() const; + float get_damping_factor() const; + float get_alpha() const; + float get_beta() const; + float get_frequency() const; + float get_phase() const; +}; diff --git a/gnuradio-core/src/lib/general/gri_fft.cc b/gnuradio-core/src/lib/general/gri_fft.cc index e535f28c7..f20b15ca0 100644 --- a/gnuradio-core/src/lib/general/gri_fft.cc +++ b/gnuradio-core/src/lib/general/gri_fft.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2003,2008 Free Software Foundation, Inc. + * Copyright 2003,2008,2011 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -21,6 +21,7 @@ */ #include <gri_fft.h> +#include <gr_sys_paths.h> #include <fftw3.h> #include <gr_complex.h> #include <stdlib.h> @@ -29,6 +30,9 @@ #include <cassert> #include <stdexcept> +#include <boost/filesystem/operations.hpp> +#include <boost/filesystem/path.hpp> +namespace fs = boost::filesystem; boost::mutex & gri_fft_planner::mutex() @@ -38,26 +42,18 @@ gri_fft_planner::mutex() return s_planning_mutex; } -static char * +static const char * wisdom_filename () { - static const char *filename = ".gr_fftw_wisdom"; - - char *home = getenv ("HOME"); - if (home){ - char *p = new char[strlen (home) + strlen (filename) + 2]; - strcpy (p, home); - strcat (p, "/"); - strcat (p, filename); - return p; - } - return 0; + static fs::path path; + path = fs::path(gr_appdata_path()) / ".gr_fftw_wisdom"; + return path.string().c_str(); } static void gri_fftw_import_wisdom () { - char *filename = wisdom_filename (); + const char *filename = wisdom_filename (); FILE *fp = fopen (filename, "r"); if (fp != 0){ int r = fftwf_import_wisdom_from_file (fp); @@ -66,13 +62,12 @@ gri_fftw_import_wisdom () fprintf (stderr, "gri_fftw: can't import wisdom from %s\n", filename); } } - delete [] filename; } static void gri_fftw_export_wisdom () { - char *filename = wisdom_filename (); + const char *filename = wisdom_filename (); FILE *fp = fopen (filename, "w"); if (fp != 0){ fftwf_export_wisdom_to_file (fp); @@ -82,7 +77,6 @@ gri_fftw_export_wisdom () fprintf (stderr, "gri_fftw: "); perror (filename); } - delete [] filename; } // ---------------------------------------------------------------- diff --git a/gnuradio-core/src/lib/general/qa_gr_fxpt_vco.cc b/gnuradio-core/src/lib/general/qa_gr_fxpt_vco.cc index 9885b3852..113006a22 100644 --- a/gnuradio-core/src/lib/general/qa_gr_fxpt_vco.cc +++ b/gnuradio-core/src/lib/general/qa_gr_fxpt_vco.cc @@ -53,7 +53,7 @@ qa_gr_fxpt_vco::t0 () float input[SIN_COS_BLOCK_SIZE]; for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++){ - input[i] = sin(i); + input[i] = sin(double(i)); } for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++){ @@ -85,7 +85,7 @@ qa_gr_fxpt_vco::t1 () double max_error = 0; for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++){ - input[i] = sin(i); + input[i] = sin(double(i)); } ref_vco.cos (ref_block, input, SIN_COS_BLOCK_SIZE, SIN_COS_K, SIN_COS_AMPL); |