digital_impl_mpsk_snr_est.h File Reference

#include <digital_api.h>
#include <gr_sync_block.h>

Go to the source code of this file.

Classes
class	digital_impl_mpsk_snr_est
	A parent class for SNR estimators, specifically for M-PSK signals in AWGN channels. More...
class	digital_impl_mpsk_snr_est_simple
	SNR Estimator using simple mean/variance estimates. More...
class	digital_impl_mpsk_snr_est_skew
	SNR Estimator using skewness correction. More...
class	digital_impl_mpsk_snr_est_m2m4
	SNR Estimator using 2nd and 4th-order moments. More...
class	digital_impl_snr_est_m2m4
	SNR Estimator using 2nd and 4th-order moments. More...
class	digital_impl_mpsk_snr_est_svr
	Signal-to-Variation Ratio SNR Estimator. More...
Enumerations
enum	snr_est_type_t { SNR_EST_SIMPLE = 0, SNR_EST_SKEW, SNR_EST_M2M4, SNR_EST_SVR }
	Enum for the type of SNR estimator to select. More...

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Enumeration Type Documentation

enum snr_est_type_t

Enum for the type of SNR estimator to select.

Below are some ROUGH estimates of what values of SNR each of these types of estimators is good for. In general, these offer a trade-off between accuracy and performance.

• SNR_EST_SIMPLE: Simple estimator (>= 7 dB)
• SNR_EST_SKEW: Skewness-base est (>= 5 dB)
• SNR_EST_M2M4: 2nd & 4th moment est (>= 1 dB)
• SNR_EST_SVR: SVR-based est (>= 0dB)

Enumerator:

SNR_EST_SIMPLE
SNR_EST_SKEW
SNR_EST_M2M4
SNR_EST_SVR