Amplitude Shading and Phase Weighting of a Vertical Linear Array in the SOFAR Channel by the Linear Minimum Variance Estimation Technique.

Abstract

A single linear vertical passive array is used in the 'SOFAR' channel to determine the depth of a single underwater source at a constant range. The phase and amplitude weights applied to the array are determined by the linear minimum variance estimation technique. The resulting beam pattern is compared to the conventional time domain beamformer. It was found that the linear minimum variance estimation technique of amplitude shading and phase weighting was significantly superior to the conventional beamformer. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1983
Accession Number
ADA140859

Entities

People

  • D. P. Mcvicar

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Acoustics
  • Amplitude
  • Depression Angles
  • Electrical Engineering
  • Engineering
  • Estimators
  • Frequency
  • Geometry
  • Interpolation
  • Linear Arrays
  • Phase Shift
  • Plane Waves
  • Plastic Explosives
  • Test Depths
  • Travel Time
  • Wave Equations
  • Waves

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Approximation Theory.