A method for fast estimation of slowly changing parameters of a quasi-harmonic signal

摘要

A new method for the fast and precise frequency and amplitude estimations of the quasi-harmonic signal with additive white Gaussian noise is presented. The method has low computational complexity and it is well suited for numerous real-time applications. The method forms the estimates by using an approach based on only one condition of slow changing the signal's parameters. The method provides exact frequency and amplitude determination in the noiseless case.