The adaptive chirplet decomposition

representation of Chirps by a class of chirplet

is an efficient approach in the time frequency structure analysis of chirp signals.Its key problem lies on the chirplet estimation

which greatly affects the decomposition results and hence is a major difficulty at present.In this paper

a simple numerical algorithm for estimating the chirplet with high accuracy is proposed

with which signal structure can be represented more clearly.Simulation results confirm the algorithm.