A Closed Form Frequency Estimator for a Noisy Sinusoid - Circuits and Systems. MWSCAS 2002. Proceedings of the 2002 IEEE Midwest Symposium on
نویسنده
چکیده
Based on the linear prediction property of sinusoidal signals, a closed form unbiased frequency estimator for a real sinusoid in white noise is proposed. The frequency estimate derives from minimizin g a constrained least squares cost function and it is simple to implemen t either in batch or recursive mode. The relationship of the proposed method with the well-known Pisarenko harmonic decomposer (PHD) is also examined. Computer sim ulations are included to contrast the estimator performance with the PHD as w ell as the Cram er-Rao lower bound.
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