2024
Spectrogram Smoothing for Estimation of the Evolutionary Spectra of Uniformly Modulated Processes
ICASSP 2024accepted
Among nonstationary time series, the class of Uniformly Modulated Processes (UMPs) have Evolutionary Power Spectra (EPS) that are the outer product of a modulating time-function and the spectrum of a stationary process. In this paper, we propose a smoothing procedure on an estimator of the EPS of a…