Title :
On decorrelation performance of weighted spatial smoothing [uniform linear sensor array examples]
Author_Institution :
Nanjing Res. Inst. of Electron. Technol., China
Abstract :
The decorrelation performance of a weighted spatial smoothing (WSS) technique is explored in this paper. The comparison between the WSS and the conventional spatial smoothing (SS) is made with respect to the condition number of the smoothed source covariance matrix and the variance of the DOA estimates of the smoothed MUSIC spectrum. Numerical results are presented to demonstrate that the decorrelation performance of the WSS preprocessor significantly outperforms the conventional SS preprocessor.
Keywords :
array signal processing; covariance matrices; decorrelation; direction-of-arrival estimation; smoothing methods; DOA estimates; WSS decorrelation performance; WSS preprocessor; covariance matrix condition number; smoothed MUSIC spectrum; smoothed source covariance matrix; weighted spatial smoothing; Autocorrelation; Covariance matrix; Decorrelation; Direction of arrival estimation; Eigenvalues and eigenfunctions; Multiple signal classification; Numerical simulation; Sensor arrays; Smoothing methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1329660
