An Experiment in Self-Cohering a Flexible Linear Array.

Abstract

Self-cohering is a method of using the signals from strong sources to locate the elements of a towed array accurately enough that beamforming may be successful on weaker sources at other frequencies arriving from different directions. An experiment was conducted to test this method with a mile-long, 40-element towed line array. Results indicate that whereas it is sometimes possible to perform self-cohering successfully by means of very simple algorithms, some of the phenomena involved are only poorly understood, and care must be exercised in applying these algorithms if failure is to be avoided.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1980
Accession Number
ADA095931

Entities

People

  • J. V. Thorn
  • N. O. Booth

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustics
  • Algorithms
  • Arrays
  • Beam Forming
  • Beam Steering
  • Doppler Effect
  • Fourier Series
  • Frequency
  • Frequency Bands
  • Frequency Domain
  • Near Field
  • Plastic Explosives
  • Power Series
  • Spatial Filtering
  • Spectral Lines
  • Towed Arrays
  • Two Dimensional

Readers

  • Phased Array Antenna Design.
  • Systems Analysis and Design