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hierarchical blocks, from either C++ or Python, as well as creating pure C++ gnuradio applications. EXPERIMENTAL.
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3946 221aa14e-8319-0410-a670-987f0aec2ac5
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(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
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3846 221aa14e-8319-0410-a670-987f0aec2ac5
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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
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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
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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 ;)
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