Noise Cancellation Using Adaptive Arrays

Abstract

All known adaptive beamformers utilize some form of automatic minimization of the mean square error. High adaptation rates thought, exhibit a signal cancellation phenomenon leading to self-jamming by the adaptive antennas. This effect results from adaptive interaction between signal and interference (i.e., jammer) inputs simultaneously received by an adaptive antenna. This thesis investigates various existing ways of adaptive beamforming for noise cancelling, and signal enhancement from simple Adaptive Noise Cancellers to Hard Constraint Adaptive Beamformers. Originator-supplied keywords include: Adaptive antennas, Hand contained beamformers, Computer programs, Adaptive filters, Jamming.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1984
Accession Number
ADA150721

Entities

People

  • Constantinos G. Manikas

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Adaptive Filters
  • Algorithms
  • Cancellation
  • Computer Programs
  • Computers
  • Delay Lines
  • Electrical Engineering
  • Filters
  • Filtration
  • Frequency
  • Frequency Bands
  • Frequency Response
  • Mathematical Analysis
  • Notch Filters
  • Plastic Explosives
  • Shift Registers
  • Transfer Functions

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.