Improved polarity coincidence spectral-centroid estimator
Anna Laurenti, Gaetano Scarano · IEEE Transactions on Signal Processing · 1992
An extension of the polarity coincidence (PC) method for estimating the center frequency of a power spectral density (PSD) is proposed. By applying Price's theorem, the variance of this new estimator for Gaussian processes is evaluated. Its performance is compared and related to that of the averaged output of an ideal tuned FM receiver.>