Title :
Enhancement of covariance matrix for array processing
Author :
Du, Weixiu ; Kirlin, R.L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A scheme is presented for enhancing the estimates of covariance matrices for covariance-based direction-of-arrival (DOA) estimators. It is based on the exploitation of the temporal correlations existing between multiple snapshots. The proposed method applies to the scenarios of both narrowband and wideband impinging signal sources. Simulation results demonstrate the enhanced resolution obtained by applying the method for covariance matrix enhancement in conjunction with the MUSIC algorithm
Keywords :
correlation theory; matrix algebra; parameter estimation; signal processing; DOA estimators; MUSIC algorithm; array processing; covariance matrix enhancement; direction-of-arrival; enhanced resolution; multiple snapshots; temporal correlations; Array signal processing; Covariance matrix; Direction of arrival estimation; Multiple signal classification; Narrowband; Random processes; Sensor arrays; Signal processing; Signal resolution; Vectors;
Conference_Titel :
Communications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-87942-638-1
DOI :
10.1109/PACRIM.1991.160673
