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SMI adaptive antenna arrays for weak interfering signalsThe performance of adaptive antenna arrays in the presence of weak interfering signals (below thermal noise) is studied. It is shown that a conventional adaptive antenna array sample matrix inversion (SMI) algorithm is unable to suppress such interfering signals. To overcome this problem, the SMI algorithm is modified. In the modified algorithm, the covariance matrix is redefined such that the effect of thermal noise on the weights of adaptive arrays is reduced. Thus, the weights are dictated by relatively weak signals. It is shown that the modified algorithm provides the desired interference protection.
Document ID
19870033544
Document Type
Reprint (Version printed in journal)
Authors
Gupta, Inder J.
(Ohio State University Columbus, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1986
Publication Information
Publication: IEEE Transactions on Antennas and Propagation
Volume: AP-34
ISSN: 0018-926X
Subject Category
Communications And Radar
Accession Number
87A20818
Funding Number(s)
CONTRACT_GRANT: NAG3-536
Distribution Limits
Public
Copyright
Other

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