Title :
DOA estimation of coherent targets in MIMO radar
Author :
Wei Zhang ; Wei Liu ; Ju Wang ; Siliang Wu
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
A simple scheme for direction of arrival (DOA) estimation of coherent targets in a multiple-input multiple-output (MIMO) radar is proposed. It is based on the idea of joint transmission and reception diversity smoothing. Compared to the existing transmission diversity smoothing (TDS) method, the major advantage of the new scheme is that more covariance matrices are available for averaging to decorrelate the coherent signals, leading to a better estimation result. Moreover, it is able to identify much more coherent targets than the TDS method when sparse arrays are used.
Keywords :
MIMO radar; covariance matrices; direction-of-arrival estimation; smoothing methods; DOA estimation; MIMO radar; TDS method; coherent signals; coherent targets; covariance matrices; direction of arrival estimation; multiple-input multiple-output radar; reception diversity smoothing; sparse arrays; transmission diversity smoothing; Covariance matrices; Direction-of-arrival estimation; Estimation; MIMO radar; Radar antennas; Receiving antennas; Smoothing methods; DOA estimation; MIMO radar; coherent targets; transmission-reception diversity smoothing;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on
Conference_Location :
Vancouver, BC
DOI :
10.1109/ICASSP.2013.6638395
