When cepstrum meets time-frequency analysis

Speaker: Dr. Chen-Yun Lin

Affiliation: University of Toronto

The cepstrum has been applied in various discrete-time signal processing problems such as the pitch detection problem in music. In this talk, I will introduce a mathematical model and an algorithm motivated by cepstrum to alleviate the influence caused by wave-shape functions in the time-frequency (TF) analysis. Hence, the algorithm would provide a TF representation with only instantaneous frequency and amplitude information without influence of non-sinusoidal wave-shape functions. I will as well provide numerical results on simulated, medical, musical, and biological signals to illustrate the proposed algorithm.