Title :
A new method for DOA estimation in nonstationary environments
Author :
Yuntao, Wu ; Guisheng, Liao ; Xiaohua, Tian
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
The maximum likelihood (ML) estimation of the direction-of-arrival (DOA) of multiple rapidly moving sources is derived. Simulation results show that this nonparametric technique is capable of resolving closely spaced sources provided that their velocities are sufficiently different
Keywords :
array signal processing; direction-of-arrival estimation; maximum likelihood estimation; DOA estimation; ML estimation; array antennas; array signal processing; closely spaced sources; direction-of-arrival estimation; maximum likelihood estimation; multiple sources; nonparametric technique; nonstationary environments; radar; rapidly moving sources; sensor arrays; sonar; time-varying sources; truncated Taylor expansion; wireless communications; Array signal processing; Direction of arrival estimation; Maximum likelihood estimation; Narrowband; Radar signal processing; Radar tracking; Sensor arrays; Signal resolution; Spatial resolution; Taylor series;
Conference_Titel :
Radar, 2001 CIE International Conference on, Proceedings
Conference_Location :
Beijing
Print_ISBN :
0-7803-7000-7
DOI :
10.1109/ICR.2001.984839
