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In this paper a time-varying cross-higher-order cumulant is defined, based on which a time-varying cross-higher-order cumulant SVD-MN algorithm is proposed. This algorithm can suppress all kinds of uncorrelated coloured noise and correlated Gaussian coloured noise. Emulation results show that the method here can estimate frequency change rates and initial frequencies of multicomponent chirp signals...
A new parameter estimation method for linear chirp signal is proposed. This method utilizes the Discrete Fractional Fourier Transform (DFRFT) along with Bowtie Chirplet Transform to estimate the amplitude and phase parameters of multi-component chirp signals. DFRFT is used for estimating amplitude parameter whereas the chirp rate and initial frequency are estimated using Chirplet Transform. Performance...
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