Mathematical Morphology Elements Used for the Ridges Extraction of Linear AM-FM Modulated Signals

Abstract:- In this paper is presented an original method used to estimate the signature of an AM-FM signal, which in this case represents the variation law of the signal’s instantaneous frequency. The analysis was developed for linear AM-FM signals covered by a zero mean Gaussian noise. Key-Words:- signature, time-frequency representations, ridges extraction, Gaussian noise.