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2006-11-21improved Costas loop gains for QPSK receivertrondeau
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@4009 221aa14e-8319-0410-a670-987f0aec2ac5
2006-11-06Default costas-alpha set to None instead of floattrondeau
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3947 221aa14e-8319-0410-a670-987f0aec2ac5
2006-11-05merging from trondeau/digital-wip for improved dbpsk and dqpsk receiverstrondeau
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3946 221aa14e-8319-0410-a670-987f0aec2ac5
2006-10-31Merged eb/binstats -r3848:3906 into trunk. These changeseb
(1) fix a problem with gr_feval* where when called from a live flowgraph, they resulted in the call back into Python occuring without holding the Global Interpreter Lock causing a SIGSEGV. (2) add gr_bin_statistics_f which combines statistics gathering with a control state machine that allows spectrum sensing or related applications that need to step through the spectrum to be built. (3) usrp_spectrum_sense.py which ties all this together in an application which steps through the spectrum a chunk at a time and gathers statistics. In the current version, the stats are gathered by nothing is done with them. Think of this as the framework for a real application. This code may require tuning of the --tune-delay and --dwell-delay timeouts to ensure that the samples being processed are associated with the given center frequency. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3907 221aa14e-8319-0410-a670-987f0aec2ac5
2006-10-24added void callback to feval familyeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3847 221aa14e-8319-0410-a670-987f0aec2ac5
2006-10-24improved error message on size mismatcheb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3846 221aa14e-8319-0410-a670-987f0aec2ac5
2006-10-04Partial fix for ticket:81jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3709 221aa14e-8319-0410-a670-987f0aec2ac5
2006-09-30fixed problem with loggin dbpsktrondeau
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3692 221aa14e-8319-0410-a670-987f0aec2ac5
2006-09-27Merged changes from eb/digital-wip into trunk.eb
This includes: * renaming gnuradio-examples/python/gmsk2 to gnuradio-examples/python/digital * refactoring the digital data tx and rx test code into benchmark_tx and benchmark_rx. These accept a -m <modulation> argument. <modulation> can currently be selected from gmsk, dbpsk, dqpsk * Two new AGC blocks: gr_agc2: separate attack and delay rates; gr_feedforward_agc: FIR-ish compressor. Normalizes to peak envelope. * Working DBPSK mod/demod (works fine) * Working DQPSK mod/demod (works, but still needs more work) git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3662 221aa14e-8319-0410-a670-987f0aec2ac5
2006-09-13Updated FSF address in all files. Fixes ticket:51eb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3534 221aa14e-8319-0410-a670-987f0aec2ac5
2006-09-10added gr.complex_to_mag_squared blockeb
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3513 221aa14e-8319-0410-a670-987f0aec2ac5
2006-08-27Implements ticket:3 and fixes ticket:42. The common functionality of jcorgan
run_tests.in for Python QA has been extracted into run_tests.sh in the top-level and the individual run_tests just invoke that with the right path parameters. Also fixed Cygwin 'make check' bug by adding fix by Don Ward. git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3440 221aa14e-8319-0410-a670-987f0aec2ac5
2006-08-24Trial fix for ticket:45eb
Changed interpretation of second argument to gr_buffer_add_reader from "history" to "nzero_preload". If the argument is 0, no zeros are preloaded into the buffer. This is a less surprising interpretation than the old behavior, which when passed a zero, inserted buffersize-1 zeros ;) git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3403 221aa14e-8319-0410-a670-987f0aec2ac5
2006-08-03Houston, we have a trunk.jcorgan
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3122 221aa14e-8319-0410-a670-987f0aec2ac5