DocumentCode
876379
Title
The constrained MUSIC problem
Author
DeGroat, Ronald D. ; Dowling, Eric M. ; Linebarger, Darel A.
Author_Institution
Erik Jonsson Sch. of Eng. & Comput. Sci., Texas Univ., Dallas, TX, USA
Volume
41
Issue
3
fYear
1993
fDate
3/1/1993 12:00:00 AM
Firstpage
1445
Lastpage
1449
Abstract
The MUSIC-based direction-of-arrival (DOA) method is generalized to include constraints involving known signal information. Projection operators are used to constrain the noise subspace to be orthogonal to a set of prespecified direction vectors. By incorporating known source directions, the estimation of unknown source directions can be significantly improved. Simulations are performed over a wide range of scenarios to demonstrate the usefulness of the approach
Keywords
signal processing; DOA; constrained MUSIC problem; direction vectors; direction-of-arrival; noise subspace; projection operators; signal information; signal processing; simulations; source directions; Additive noise; Direction of arrival estimation; Frequency estimation; Instruments; Multiple signal classification; Sensor arrays; Signal processing; Signal resolution; Subspace constraints; Vectors;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/78.205753
Filename
205753
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