Two-Dimensional Beamforming Using a Frequency Domain Complex Least Mean-Squares (LMS) Adaptive Filter.

Abstract

The complex LMS adaptive algorithm developed by Widrow 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. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1986
Accession Number
ADA171396

Entities

People

  • Francis Chan

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Adaptive Filters
  • Algorithms
  • Angle Of Arrival
  • Communication Systems
  • Computers
  • Detection
  • Electrical Engineering
  • Engineering
  • Far Field
  • Geometry
  • Linear Arrays
  • Plane Waves
  • Pulse Communications
  • Signal Processing
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.