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Title: Brief review of adaptive null steering techniques. Memorandum report

Abstract

A brief theoretical review of adaptive null steering is presented. The basic theory is first outlined in the context of sidelobe cancellation systems as well as general antenna arrays. Various approaches to the practical implementation of adaptive null steering are then discussed. These fall into the two main categories of closed-loop methods and direct-solution methods. The closed-loop methods are very cost-effective and suitable in principle, for either analog or digital processing. However, their rate of convergence is fundamentally limited and too slow for some applications. The direct-solution methods do not suffer from this problem, but tend to be suitable only for digital processing and are more expensive from the computational point of view. However, they are well suited to parallel processing and now provide a very practical alternative due to recent advances in VLSI circuit technology. A brief discussion on the effects of multi-path propagation on adaptive null-steering systems concludes this review.

Authors:
Publication Date:
Research Org.:
Royal Signals and Radar Establishment, Malvern (UK)
OSTI Identifier:
5063919
Alternate Identifier(s):
OSTI ID: 5063919
Report Number(s):
AD-A-169548/5/XAB; RSRE-MEMO-3939
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; INTEGRATED CIRCUITS; PARALLEL PROCESSING; CANCELLATION; CONVERGENCE; DIGITAL SYSTEMS; NUMERICAL ANALYSIS; ELECTRONIC CIRCUITS; MATHEMATICS; MICROELECTRONIC CIRCUITS; PROGRAMMING 990200* -- Mathematics & Computers

Citation Formats

McWhirter, J.G. Brief review of adaptive null steering techniques. Memorandum report. United States: N. p., 1986. Web.
McWhirter, J.G. Brief review of adaptive null steering techniques. Memorandum report. United States.
McWhirter, J.G. Sat . "Brief review of adaptive null steering techniques. Memorandum report". United States. doi:.
@article{osti_5063919,
title = {Brief review of adaptive null steering techniques. Memorandum report},
author = {McWhirter, J.G.},
abstractNote = {A brief theoretical review of adaptive null steering is presented. The basic theory is first outlined in the context of sidelobe cancellation systems as well as general antenna arrays. Various approaches to the practical implementation of adaptive null steering are then discussed. These fall into the two main categories of closed-loop methods and direct-solution methods. The closed-loop methods are very cost-effective and suitable in principle, for either analog or digital processing. However, their rate of convergence is fundamentally limited and too slow for some applications. The direct-solution methods do not suffer from this problem, but tend to be suitable only for digital processing and are more expensive from the computational point of view. However, they are well suited to parallel processing and now provide a very practical alternative due to recent advances in VLSI circuit technology. A brief discussion on the effects of multi-path propagation on adaptive null-steering systems concludes this review.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 1986},
month = {Sat Feb 01 00:00:00 EST 1986}
}

Technical Report:
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