Title :
Theoretical study on time delay and Doppler stretch estimation of Chirp signal based on Wavelet-Cumulants
Author :
Yang, Wei ; Shi, Yaowu
Author_Institution :
State Key Lab. of Automobile Dynamic Simulation, Jlin Univ., Changchun, China
Abstract :
The algorithm of wavelet analysis can be used to estimate the time delay (TD) and Doppler stretch (DS) of Chirp signals, but it cannot suppress the effect of Gaussian noises. In this paper, a definition of fourth-order Wavelet-Cumulants is given by combining the wavelet and the forth-order cumulant. This method can be used in unknown Gaussian noise environment. The simulation results demonstrate the effectiveness of this novel approach.
Keywords :
signal processing; wavelet transforms; Doppler stretch; Gaussian noises; chirp signal doppler stretch estimation; chirp signal time delay; chirp signals; forth-order cumulant; unknown Gaussian noise environment; wavelet analysis; wavelet-cumulants; Delay; Noise; Wavelet domain; Chirp signal; Doppler stretch; Time Delay; Wavelet-Cumulants;
Conference_Titel :
Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5537-9
DOI :
10.1109/ICCSIT.2010.5564138
