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2008-04-22Merged eb/gcell -r8215:8243 into trunk. This adds gr-gcell, the GNUeb
Radio interface to the Cell Broadband Engine. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8244 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-18Improved performance of the ML sync (with added computations). It uses the ↵trondeau
energy calculation to normalize the correlation and the timing sequence and correlation together to determine the timing. This works for frequencies of +-0.6 offset, which is a limiting factor still in the performance but better than the previous checkin. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8222 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-17Improved the pnac ofdm sync block. This is based on a VTC'99 paper by ↵trondeau
Tufvesson, et al. that does a bit more work than the Schmidl and Cox to produce a more identifiable peak for the timing. This seems to work well in the simulation for low frequency errors. The correlation doesn't seem to track well, though. See the comments for more info. Also, the peak detection requires unity amplitude for the threshold detection. So, who wants to make an OFDM AGC? git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8217 221aa14e-8319-0410-a670-987f0aec2ac5
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
2008-04-16FFT inverse tranform is now correct.eb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8211 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-16Merged gcell-wip -r8159:8202 into trunk. This includes the followingeb
changes: * gc_make_job_manager now returns a boost::shared_ptr * opts.program_handle is now a boost::shared_ptr * two new functions for getting a program handle * look_proc and alloc_job_desc now throw on error * static methods for setting and getting a single job manager * new exception hierarchy * mv gcell/src/lib/procs gcell/src/lib/wrapper * added libfft. Currently inverse xform is broken * gcell-embedspu-libtool creates libtool complaint .ko's from SPE executables git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8209 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
2008-04-12Fix typo in previous check-injcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8194 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-12Addes gr.cpfsk_bc(), a continuous phase frequency shift keying modulator block.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8193 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
2008-04-12Fixes typo in r8188.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8189 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-11bug in gr_argmax_XX.cc.t fixedn4hy
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8188 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
2008-04-11Added CIC compensation filter tap generator. Useful when working without ↵jcorgan
the half-band filter in the USRP. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8185 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-11Add ignores for new directory.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8184 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-10put portaudio examples in a separate directoryn4hy
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8182 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-10adding example sources to portaudion4hy
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8181 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-10portaudio specific examples added to gr-audio-portaudion4hy
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8180 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
2008-04-02Adding a simple script to read data from the MSDD source and dump it to a file.trondeau
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8151 221aa14e-8319-0410-a670-987f0aec2ac5
2008-04-02Changed from TCP to UDP streaming; only reissue command when opening the ↵trondeau
socket or changing the streaming parameters. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8150 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
2008-03-31merging branch trondeau/ofdm r7971:8143. Fixing subcarriers and other issues ↵trondeau
to improve OFDM system operation. Not much more we can do with this than add channel coding and cleaning up. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8144 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-25modifications to firmware requires test code changes for udpn4hy
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8114 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24Update config files from canonical source.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8105 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24Update config files from canonical source.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8101 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24Fixed gr.udp_source,sink for use on Win32 (Don Ward)jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8097 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
2008-03-24Add missing peak hold initialization (Josh Blum)jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8095 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24Fix for gcell corrrectness/performance problem. Replaces mfc_synceb
with appropriate use of tag and fenced get. We could pick up a bit of additional performance by double buffering the the local store job descriptor, but that's left for a rainy day. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8090 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24dependency fixeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8089 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24minor cleanupeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8088 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-24Merged gcell, the Cell SPE scheduler and RPC mechanism into the trunk.eb
(eb/trunk-with-gcell r8037:8085). Expect additional tweaks, but currently works and passes distcheck. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8086 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-19Minor tweak that avoids intermittent build failureeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8057 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-19Fix missing symbolic link in Debian packages.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8051 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-19Fixes ticket:193jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8050 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-17Don't define RANDOM_MAX on systems that have already defined it. (Atgdt
present, only NetBSD-current is known to do this.) Improve the comment explaining the situation. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8034 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-16Use AC_PATH_PROG to avoid which(1).gdt
In addition to testing if $SVN is non-null, require the presence of a subversion ".svn" directory. Confirmed working with svn builds. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8033 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-16Add comments noting things that need fixing.gdt
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8032 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-12Fix incorrect FFT size compensation in fftsink2jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7997 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-08Add ignores for generate-stamp.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7971 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-07Adds callback function so that the user can click on a point in the time ↵trondeau
sequence and highlight it and the corresponding point in the constellation diagram; can cycle forwards and backwards using < and > keys, respectively. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7957 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-05Merged eb/reverted-7899 -r7928:7930 into trunk. This effectivelyeb
reverts changeset 7899 and fixes some distcheck problems. We're now back to the old behavior, where you must "make" before "make distcheck". git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7931 221aa14e-8319-0410-a670-987f0aec2ac5
2008-03-04Fix tab/space usage for previous fix.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7916 221aa14e-8319-0410-a670-987f0aec2ac5
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