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* digital: fixing narrowband (de)mods and examples to work with gr-digital and ↵Tom Rondeau2012-07-161-2/+2
| | | | gr-filter components.
* digital: update to qa and example code for new constructor with tag_nsamples ↵Tom Rondeau2011-12-301-5/+5
| | | | arg.
* digital: adding documentation for SNR estimators; added an estimator for ↵Tom Rondeau2011-12-291-3/+3
| | | | | | M2M4 type that allows the user to set the kurtosis of the signal and noise, if known, to work with non-MPSK and non-AWGN channels (untested). Also, the technique is signal to variation ratio (SVR), not SVN. Couldn't read my own writing.
* digital: adding an example program for the SNR estimators with Python code ↵Tom Rondeau2011-12-291-0/+174
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