Wiener Filtering of LFM Signal Based on Discrete Chirp-Fourier Transform

This paper proposes a new method for Wiener fi lt ering of linear FM signal based on the Chirp-Fourier transform. According to th e principle that linear transform is equivalent to Wiener filtering, the filteri ng operator on the discrete Chirp-Fourier domain is provided according to the l east square algorithm.Theoretical analysis and simulation results shows that the proposed filtering algorithm can estimate the signal waveform with minimum mean square error (MSE) , and it is also simple to make computation and easy in impl ementation.