Publication:
Two-dimensional beamforming using a frequency domain complex Least Mean-Squares (LMS) adaptive filter

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Authors
Chan, Ka Nin
Subjects
Array Processing
Adaptive Spatial Resolution
Two-Dimensional Array
Sonar Signal Processing
Beamforming
Advisors
Ziomek, Lawrence J.
Date of Issue
1986-06
Date
June 1986
Publisher
Language
en_US
Abstract
The complex LMS adaptive algorithm developed by Widrow [Ref. 1] is used in the frequency domain to estimate the azimuth and elevation angles of a plane wave incident upon a planar array. The complex LMS algorithm is applied to two cases. The first case is a passive detection problem. The second case is a pulse communication problem. In both cases, complex weights are determined using the complex LMS algorithm which cophase all of the output electrical signals from -the planar array. Three versions of the complex LMS algorithm are studied and their performances are compared.
Type
Thesis
Description
Series/Report No
Department
Electrical and Computer Engineering
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
137 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
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