Title
A new spatial smoothing scheme for direction-of-arrivals of correlated sources
Abstract
The performance of second-order methods in signal processing for spatial analysis is limited by the correlation between sources. The popular approach of spatial smoothing groups an equally spaced array into subarrays and then averages the covariance matrices of the subarrays to decorrelate coherent arrivals. In the new method proposed here, the decomposition is applied on the eigenvector spanning the signal subspace to reform the source subspace basis. Results of simulation show that the new scheme is more robust to noise. Comparison is made with the conventional spatial smoothing method in terms of variances on the estimated directions.
Year
DOI
Venue
1996
10.1016/S0165-1684(96)00104-1
Signal Processing
Keywords
Field
DocType
signal processing, spatial analysis, high resolution, direction of arrivals, coherent sources, space diversity
Signal processing,Mathematical optimization,Antenna diversity,Subspace topology,Matrix (mathematics),Smoothing,Signal subspace,Eigenvalues and eigenvectors,Mathematics,Covariance
Journal
Volume
Issue
ISSN
54
2
0165-1684
Citations 
PageRank 
References 
4
0.45
3
Authors
2
Name
Order
Citations
PageRank
Dominic Grenier138221.18
Éloi Bossé238626.19