Instantaneous Phases Based SNR Estimator for BPSK Signals
A novel algorithm for Signal-power-to-Noise-power ratio (SNR) estimation in AWGN channel is proposed in this paper. The relationship between SNR and the distribution of instantaneous phase (DIP) of BPSK signal is investigated, and the SNR estimator is constructed according to this relationship. Correlation coefficients are used to judge the similarity of the DIP between the theoretical one and the one of the received signal. Accurate symbol synchronization, which is the essential prerequisite for most SNR estimators, is not needed for the estimator proposed in this paper. Bias and root-meansquared error (RMSE) are used to evaluate the performance of the estimator. The results of the Monte Carlo computer simulations show the credible performances of the estimator.
instantaneous phase SNR estimator BPSK A WGN
Zhang Xiao-yong Luo Lai-yuan
Southwest Electronics and Telecommunication Technology Research Institute,Chengdu 610041,China
国际会议
上海
英文
2563-2566
2009-11-20（万方平台首次上网日期，不代表论文的发表时间）