Title :
A Capon-like spatial spectrum estimator for correlated sources
Author :
Abrahamsson, Richard ; Jakobsson, Andreas ; Stoica, Petre
Author_Institution :
Dept. of Inf. Technol., Uppsala Univ., Uppsala, Sweden
Abstract :
In this paper, we propose a data-adaptive method for estimating the spatial spectrum for correlated and/or coherent sources. The method is reminiscent of the MVDR/Capon beamformer, but yields a multidimensional spatial response with a dimension for each examined source. The estimated directions of arrival (DOA) are given as the points of energy concentration in the multidimensional spatial response. Numerical examples indicate a significant improvement over the standard MVDR/Capon beamformer.
Keywords :
array signal processing; direction-of-arrival estimation; multidimensional signal processing; spectral analysis; Capon beamformer; Capon-like spatial spectrum estimator; DOA estimation; MVDR; correlated sources; data-adaptive method; directions of arrival estimation; minimum variance distortionless response; multidimensional spatial response; Abstracts; Arrays; Distortion; Manganese;
Conference_Titel :
Signal Processing Conference, 2004 12th European
Conference_Location :
Vienna
Print_ISBN :
978-320-0001-65-7
