手机链路SNR评估

SNR estimation techniques for the AWGN channelIEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 48, NO. 10, OCTOBER 2000

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A Comparison of SNR Estimation Techniques for the AWGN Channel
David R. Pauluzzi and Norman C. Beaulieu, Fellow, IEEE
Abstract―The performances of several signal-to-noise ratio (SNR) estimation techniques reported in the literature are compared to identify the “best” estimator. The SNR estimators are investigated by the computer simulation of baseband binary phase-shift keying (PSK) signals in real additive white Gaussian noise (AWGN) and baseband 8-PSK signals in complex AWGN. The mean square error is used as a measure of performance. In addition to comparing the relative performances, the absolute levels of performance are also established; the simulated performances are compared to a published Cramér