Research on Algorithms for Adaptive Array Antennas.

Abstract

This report demonstrates a method for implementing a wide-band constrained array processor using filters possessing both poles and zeros. The idea of constrained array processing is introduced and an optimal array weighting formula is derived. This optimal weighting is meant to cancel m-1 wide-band interference sources incident on an m-element array with a constrained look direction. From the optimal weighting formula, it becomes evident that the use of filters possessing both poles and zeros to perform the frequency-dependent weighting has the potential for improving the wide-band nulling capability of the array. A novel method for adapting the pole-zero array filters in tap-delay-line form using the LMS or RLS algorithm is presented. The issue of look-direction signal bias and stability of the inverse filter are addressed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1982
Accession Number
ADA123419

Entities

People

  • Bernard Widrow
  • R. Gooch
  • T. Autruong

Organizations

  • Stanford University

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Adaptive Filters
  • Adaptive Systems
  • Algorithms
  • Antenna Arrays
  • Antennas
  • Bandwidth
  • Computational Complexity
  • Delay Lines
  • Electrical Engineering
  • Filters
  • Filtration
  • Frequency
  • Frequency Response
  • Signal Processing
  • Steering
  • Transfer Functions
  • White Noise

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Control Systems Engineering.
  • Phased Array Antenna Design.