Title :
Performance analysis of spatial smoothing with interpolated arrays
Author :
Weiss, Anthony J. ; Friedlander, Benjamin
Author_Institution :
Signal Processing Technol. Ltd., Palo Alto, CA, USA
Abstract :
The interpolated spatial smoothing algorithm is a computationally efficient method for estimating the directions of arrival (DOAs) of signals, some of which may be perfectly correlated. It extends the spatial smoothing method to arbitrary array geometrics. A performance analysis is outlined for this algorithm. Closed form expressions for the covariance matrix of the DOA estimation errors are derived using a perturbation analysis
Keywords :
interpolation; matrix algebra; signal processing; DOA; DOA estimation errors; array geometrics; closed form expressions; covariance matrix; directions of arrival; interpolated arrays; interpolated spatial smoothing algorithm; performance analysis; perturbation analysis; Covariance matrix; Direction of arrival estimation; Estimation error; Geometry; Interpolation; Performance analysis; Sensor arrays; Signal processing algorithms; Smoothing methods; Testing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150679
