Novel data-aided SNR estimation algorithm for QPSK signal in AWGN channel

Novel data-aided SNR estimation algorithm for QPSK signal in AWGN channel was presented. The analytical and simulated results show that the new SNR estimator performs better than ML-DA estimators, especially in the condition of low SNR, it is more precise and more reliable, and is not sensitive to p...

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Vydané v:Tongxin Xuebao Ročník 29; číslo 6; s. 119 - 125
Hlavní autori: Jiang, Zheng-Bo, Hong, Wei, Liu, Jin, Tian, Ling
Médium: Journal Article
Jazyk:Chinese
Vydavateľské údaje: Editorial Department of Journal on Communications 01.06.2008
Predmet:
communication measurement
complex correlations
SNR estimation
ISSN:1000-436X
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Shrnutí:Novel data-aided SNR estimation algorithm for QPSK signal in AWGN channel was presented. The analytical and simulated results show that the new SNR estimator performs better than ML-DA estimators, especially in the condition of low SNR, it is more precise and more reliable, and is not sensitive to phase errors of the receiver. Finally, the origin of the new estimator's error was explored and some suggestions were made on its application.
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ISSN:1000-436X