diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2011-12-29 15:38:49 -0500 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2011-12-29 15:38:49 -0500 |
| commit | 886e3c258ff40b4d10e7e8fc28912f14565a4fd1 (patch) | |
| tree | befcf76a159a74300d4ef7aef93664cfc3c9095c /gr-digital/examples | |
| parent | 2db40bb40eda996bf47417a04ec001acb422d3d9 (diff) | |
digital: adding documentation for SNR estimators; added an estimator for 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.
Diffstat (limited to 'gr-digital/examples')
| -rwxr-xr-x | gr-digital/examples/snr_estimators.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gr-digital/examples/snr_estimators.py b/gr-digital/examples/snr_estimators.py index 0f9fbca2b4..6bd9257fac 100755 --- a/gr-digital/examples/snr_estimators.py +++ b/gr-digital/examples/snr_estimators.py @@ -68,7 +68,7 @@ def snr_est_m2m4(signal): snr_rat = 2*scipy.sqrt(2*M2*M2 - M4) / (M2 - scipy.sqrt(2*M2*M2 - M4)) return 10.0*scipy.log10(snr_rat), snr_rat -def snr_est_svn(signal): +def snr_est_svr(signal): N = len(signal) ssum = 0 msum = 0 @@ -87,11 +87,11 @@ def main(): gr_estimators = {"simple": digital.SNR_EST_SIMPLE, "skew": digital.SNR_EST_SKEW, "m2m4": digital.SNR_EST_M2M4, - "svn": digital.SNR_EST_SVN} + "svr": digital.SNR_EST_SVR} py_estimators = {"simple": snr_est_simple, "skew": snr_est_skew, "m2m4": snr_est_m2m4, - "svn": snr_est_svn} + "svr": snr_est_svr} parser = OptionParser(option_class=eng_option, conflict_handler="resolve") |