Title :
Signal resolution using generalized eigenvalues for coherent sources
Author :
Pillai, S. Unnikrishna
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Polytech. Univ., New York, NY, USA
Abstract :
New results are presented for resolving two or three uncorrelated/coherent plane wave sources in the presence of white noise, when subspace-based high resolution estimators are used to estimate the directions of arrival of incoming signals. The signal to noise ratio required to resolve two or three closely spaced sources is derived in various source scenes. The results are compared with those corresponding to a two uncorrelated/coherent source scene
Keywords :
eigenvalues and eigenfunctions; signal processing; white noise; SNR; coherent sources; directions of arrival; generalized eigenvalues; high resolution estimators; incoming signals; signal resolution; signal to noise ratio; source scenes; subspace estimators; uncorrelated plane wave sources; white noise; Covariance matrix; Decorrelation; Degradation; Direction of arrival estimation; Eigenvalues and eigenfunctions; Layout; Sensor arrays; Signal resolution; Signal to noise ratio; Smoothing methods;
Conference_Titel :
TENCON '89. Fourth IEEE Region 10 International Conference
Conference_Location :
Bombay
DOI :
10.1109/TENCON.1989.176942
