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1 International Journal of Electronics and Telecommunications

1 2012

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On a New Approach to SNR Estimation of BPSK Signals

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Moazzeni T. , Amei A. , Ma J. , Jiang Y.

International Journal of Electronics and Telecommunications

2012

tom Vol. 58, No. 3

273-278

Signal-to-noise ratio (SNR) information is required in many communication receivers and their proper operation is, to a large extent, related to the SNR estimation techniques they employ. Most of the available SNR estimators are based on approaches that either require large observation length or suffer from high computation complexity. In this paper, we propose a low complexity, yet accurate SNR estimation technique that is sufficient to yield meaningful estimation for short data records. It is shown that our estimator is fairly close to the (CRLB) for high SNR values. Numerical results also confirm that, in terms of convergence speed, the proposed technique outperforms the popular moment based method, M2M4.