Ridges extraction method for a polynomial frequency modulated signal covered with a zero mean Gaussian noise

Abstract

In this paper is presented an original method, developed by the authors, in order to extract the ridges of the polynomial frequency modulated signals covered by a low-pass filtered Gaussian noise, using Short-Time Fourier Gabor and Wigner-Ville time-frequency representations and mathematical morphology elements. In the paper are also presented practical results obtained for generated polynomial modulated chirps.