A Comparison of Some Signal-Processing Algorithms to Suppress Tow-Vessel Noise in a Towed Array, with Results from a Shallow-Water Trial

Abstract

A short trial has been conducted in shallow water using a towed array and a number of signal-processing techniques. Results are presented on the outputs from conventional beamforming and maximum-likelihood beamforming and on some basic techniques for suppressing towship noise. The signal processing package is implemented in software and provides the various forms of processing by using the array covariance matrix and eigenvalue/vector analysis. Possible future work on these topics is proposed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1982
Accession Number
ADA125307

Entities

People

  • Even B. Lunde
  • Ulrich E. Rupe

Organizations

  • SACLANT ASW Research Centre

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustics
  • Algorithms
  • Arrays
  • Computer Programs
  • Computers
  • Eigenvalues
  • Equations
  • Frequency Bands
  • Hydrophones
  • Magnetic Tape
  • Nato
  • Ray Tracing
  • Shallow Water
  • Signal Processing
  • Signal Processing Software
  • Towed Arrays
  • Water

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Phased Array Antenna Design.