Title :
Efficient EM initialisation method for time delay estimation
Author :
Yi, Min ; Wei, Ping ; Xiao, Xian-Ci ; Tai, Heng-Ming
Author_Institution :
Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Sichuan, China
fDate :
6/12/2003 12:00:00 AM
Abstract :
A systematic and efficient initialisation method for the expectation-maximisation (EM) algorithm in time delay estimation is presented. This EM initialisation method is implemented in the frequency domain based on the alternating projection approach. Simulation results show that the proposed algorithm significantly improves the performance of the EM algorithm.
Keywords :
array signal processing; clutter; delay estimation; optimisation; state estimation; EM initialisation method; alternating projection approach; array signal processing; cluttered noise environments; expectation-maximisation algorithm; frequency domain; state estimation; time delay estimation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030624
