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2008-04-16to complete what I started, this makes the ofdm_sync_fixed block work again ↵trondeau
in the OFDM receiver. Its only used for testing in the simulation mode if you want to remove any affects of the synchronization blocks. You have to manually edit the number of symbols and any fractional frequency offset you might want to use. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8213 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-16The ofdm_sync_pnac method now works, though not that well. The frequency ↵trondeau
estimation is horrible and it still has some problems that may be a fundamental issue with the idea. I need to get the paper this was based off of to review it. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8212 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-15Fixed to pass distcheck, except QA test operates differently during ↵jcorgan
distcheck vs. command-line, so commented out for now. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8207 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-15Merged r8195:8205 from jcorgan/ecc into trunk. Adds convolutional encoderjcorgan
and decoder corresponding to the R=1/2, K=7 CCSDS standard ("Voyager"). This code is a GNU Radio wrapper around a 1995-era KA9Q portable-C implementation, and is designed for continuous streaming data, not packets. The encoder takes MSB packed bytes and outputs channel symbols 0 or 1. The decoder uses soft-decision Viterbi decoding on a floating point stream of (possibly noise corrupted) [1.0, 1.0] symbols, and outputs MSB packed decoded bytes. Benchmarking on a 2.16 GHz Intel Core 2 Duo shows 4.7 Mbps decoding rate at 100% CPU usage (single core). (There is a newer KA9Q library that implements SIMD speed ups with correspondingly faster performance.) The KA9Q library is placed into src/lib/viterbi. It could use some cleanup, file/function renaming, and refactoring, or even replacement with the newer libfec code that is available. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8206 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-15Mostly fixed the van de Beek ML synchronization scheme. Instead of using the ↵trondeau
CP timing signal, it correlates against the known preamble just to send along the timing trigger. This works nicely and keeps the frequency more constant in the receiver since it updates the estimate every received symbol. Read the comments inside to see why it's 'mostly fixed' -- this was mostly proving a point for myself today. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8199 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-15Adjusting structure a bit to redistribute responsibilities. This does not ↵trondeau
change the behavior or performance at all. The sync. block only calculates the frequency and timing signals and now outputs the fine frequency adjustment signal from output 0 and the timing signal for the start of the packet from output 1. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8198 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-12Adds gru.daemonize() and example application. Simplifies running GNU Radio ↵jcorgan
applications as background daemon processes instead of foreground applications. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8191 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-12Adds gr.integrate_XX for ss, ii, ff, and cc. Sums successive samples and ↵jcorgan
decimates. Trunk passes distcheck. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8190 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-11fixing bug in gr_max_XX.cc.t and modifying qa_max.py to test fixn4hy
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8187 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-11Adds gr.repeat(), an interpolating block to repeat a sample N times on the ↵jcorgan
output. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8186 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-09Fixes ticket:238. (Tim Meehan)jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8163 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-01audio windows added to audio.pyn4hy
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8146 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24Tweak ticket:181 fix for Win32 (Don Ward)jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8096 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-28Fix for QA code for wavefile.michaelld
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7866 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-26merged -r7836:7846 from trondeau/ofdmtiming to trunk. This fixes the big ↵trondeau
issues in transmitting OFDM over the air with 1 preamble symbol. Still some smaller issues left. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7848 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-21disabled test_002_checkwavcopy, fails on PPCeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7761 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-19Merged Tim Meehan's gr.and_*, gr.not_*, and gr.or_* blocks. Passes distcheck.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7739 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-18Merged r7732:7734 from jcorgan/boolean into trunk. Add's Tim Meehan's ↵jcorgan
gr.xor_* blocks. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7735 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-18Merged -r7723:7729 from jcorgan/wav into trunk, with added example program. ↵jcorgan
Adds Martin Braun's gr.wavfile_source and gr.wavfile_sink blocks. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7730 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-17Fix word usage.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7721 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-16Improve hierarchical block documentation.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7718 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-08Removed gr.flow_graph, gr.hier_block and friends. From here on outeb
all work on the trunk must use gr.top_block and gr.hier_block2. Merged eb/fg-no-more -r7602:7606 into trunk. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7607 221aa14e-8319-0410-a670-987f0aec2ac5
2008-02-06Merging trondeau/ofdmfix into branch at -r7582:7586. This allows for ↵trondeau
over-the-air OFDM. Works with all modulations and tested both send and receive on different computers/USRPs. Misses a few packets, so it's not perfect. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7587 221aa14e-8319-0410-a670-987f0aec2ac5
2008-01-29Switched OFDM sync block to use peak detector from Kyle Jamieson. This ↵trondeau
solves one problem of locking up with low SNR but does not solve the big over-the-air problems. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7523 221aa14e-8319-0410-a670-987f0aec2ac5
2008-01-26better filter bandwidthsmatt
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7519 221aa14e-8319-0410-a670-987f0aec2ac5
2008-01-19Fixes ticket:229. Fixed code in synthesis filterbank, restored test ↵jcorgan
programs from limbo and upgraded to use blks2. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7476 221aa14e-8319-0410-a670-987f0aec2ac5
2008-01-18Trial workaround for ticket:181jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7461 221aa14e-8319-0410-a670-987f0aec2ac5
2008-01-02Merging ofdm2 branch -r7047:7321 into trunk. This updates the OFDM code to ↵trondeau
hier_block2 in blks2impl and removed from blksimpl. The new code implements a decision feedback sync loop to lock the phase/freq, removes two unnecessary premables and performs frame sync and equalization off single preamble symbol. Also adds/updates Python plotting tools and a branchless clip algorithm in gr_math.h. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7324 221aa14e-8319-0410-a670-987f0aec2ac5
2007-11-29fixes ticket:211eb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7053 221aa14e-8319-0410-a670-987f0aec2ac5
2007-11-27Added FIXME tags.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7038 221aa14e-8319-0410-a670-987f0aec2ac5
2007-11-27Merged r7001:7035 from jcorgan/t202 into trunk. Implements ticket:202, ↵jcorgan
converting qa code in core to new top block code. Three issues exist and have been separately logged: qa_bin_statistics.py - ticket:199 qa_rational_resampler.py - ticket:210 qa_stream_mux.py - ticket:211 git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7036 221aa14e-8319-0410-a670-987f0aec2ac5
2007-10-22Add methods in shim to allow derived class override in Pythonjcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6669 221aa14e-8319-0410-a670-987f0aec2ac5
2007-10-18Remove non-converted OFDM code from blks2impl (examples still use blks, not ↵jcorgan
blks2.) git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6649 221aa14e-8319-0410-a670-987f0aec2ac5
2007-09-20Converted blks2.channel_model to hier_block2 format.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6487 221aa14e-8319-0410-a670-987f0aec2ac5
2007-09-18Merge r6461:6464 from jcorgan/t162-staging into trunk.jcorgan
* Final gr.top_block and gr.hier_block2 implementation inside gnuradio-core/src/lib/runtime * Implementation of gr.hier_block2 versions of all the old-style blocks in blks. These live in blks2. * Addition of gr.hier_block2 based versions of gr-wxgui blocks * Conversion of all the example code in gnuradio-examples to use this new code * Conversion of all the gr-utils scripts to use the new code The OFDM examples and related hierarchical blocks have not yet been converted. Code in the rest of the tree that is outside the core and example components has also not yet been converted. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6466 221aa14e-8319-0410-a670-987f0aec2ac5
2007-09-04Merged r6285:6297 from features/deb into trunk. Nearing completion on ↵jcorgan
Debian packaging for 3.1. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6299 221aa14e-8319-0410-a670-987f0aec2ac5
2007-08-30applied patch from jblumeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6228 221aa14e-8319-0410-a670-987f0aec2ac5
2007-08-29loosened tolerance so that it passes on Cell/PPCeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6210 221aa14e-8319-0410-a670-987f0aec2ac5
2007-08-27Merged r6171:6186 from jcorgan/fg into trunk.jcorgan
Changes hierarchical flow graph API to use gr.top_block instead of gr.runtime. See discuss-gnuradio mailing list for explanation of changes. GRC has not been updated to use the changed API. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6187 221aa14e-8319-0410-a670-987f0aec2ac5
2007-08-23Merge r6160:6168 from jcorgan/fg into trunk.jcorgan
Refactors gr_simple_flowgraph into gr_flowgraph and gr_flat_flowgraph. Adds cppunit-based QA. Trial fix for ticket:164 included for free. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6169 221aa14e-8319-0410-a670-987f0aec2ac5
2007-08-04merged -r5966:6112 on trondeau/ofdm_mod. Allows for generic constellations ↵trondeau
(supports bpsk, qpsk, 8psk, qam16, qam64, and qam256 currently), fixes some bugs in the correlation and altered default parameters for over-the-air operation. This merge fixes ticket:156 and ticket:157. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6113 221aa14e-8319-0410-a670-987f0aec2ac5
2007-07-21Updated license from GPL version 2 or later to GPL version 3 or later.eb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6044 221aa14e-8319-0410-a670-987f0aec2ac5
2007-07-16Merged r5950:5978 from features/pager into trunk. Trunk passes distcheck.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5979 221aa14e-8319-0410-a670-987f0aec2ac5
2007-07-15merged -r5947:5965 on trondeau/regen into trunk. Fixes ticket:154 on ↵trondeau
gr_regenerate_bb block. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5966 221aa14e-8319-0410-a670-987f0aec2ac5
2007-06-25removed bug in pll_carrier_recovery which prevented stereo from working. ↵nldudok1
Side-effect is that stereo-squelch is disabled for now git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5833 221aa14e-8319-0410-a670-987f0aec2ac5
2007-06-10Merging OFDM features branch r5661:5759 into trunk. OFDM works over the air ↵trondeau
with BPSK and QPSK modulations on subcarriers. Passes make distcheck. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5761 221aa14e-8319-0410-a670-987f0aec2ac5
2007-06-04merge ordm/receiver branch -r5574:5659. Reworks OFDM receiver with ↵trondeau
refactored OFDM blocks. A few bug fixes for other blocks have also been slipped in. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5661 221aa14e-8319-0410-a670-987f0aec2ac5
2007-05-30added Trond's gr_max_* and gr_argmax_* blockseb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5575 221aa14e-8319-0410-a670-987f0aec2ac5
2007-05-28Merged r5547:5542 from jcorgan/num into trunk. Converts from using Python ↵jcorgan
Numeric to numpy. Trunk passes distcheck. gr-radio-astronomy still needs conversion. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5553 221aa14e-8319-0410-a670-987f0aec2ac5
2007-05-25updated cpm.py fileanastas
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@5538 221aa14e-8319-0410-a670-987f0aec2ac5
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