DocumentCode
841184
Title
On conditions for the rank restoration in forward/backward spatial smoothing
Author
Choi, Yang-Ho
Author_Institution
Sch. of Inf. & Commun. Eng., Dongyang Univ., Kyungbook, South Korea
Volume
50
Issue
11
fYear
2002
fDate
11/1/2002 12:00:00 AM
Firstpage
2900
Lastpage
2901
Abstract
The forward/backward spatial smoothing is an efficient technique for obtaining a modified covariance matrix of full rank in the presence of coherent sources. The condition for the full-rank restoration was presented in an earlier paper by Pillai and Kwon (1989). It, however, is incorrect. We present the exact condition. It is shown that the forward/backward spatial smoothing results in the full-rank restoration with probability 1.
Keywords
covariance matrices; probability; smoothing methods; coherent sources; exact condition; forward/backward spatial smoothing; full-rank restoration; modified covariance matrix; parameter estimation; probability; rank restoration; Apertures; Covariance matrix; Multiple signal classification; Parameter estimation; Signal processing; Signal restoration; Smoothing methods; Spatial resolution; Sufficient conditions;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/TSP.2002.804075
Filename
1041046
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