HUMAN FACTOR PROBLEMS IN ANTI-SUBMARINE WARFARE. SONAR TARGET CLASSIFICATION USING OPTICAL INTERFEROMETRY: AN EXPLORATORY STUDY.

Abstract

This report describes a technique for analyzing sonar echoes by means of optical interferometry. An optical filter of appropriate frequency and density is placed over a target echo and rotated through a small angle until a clearly perceptible interference pattern results. Delay-line theory predicts that the interference patterns from submarine and nonsubmarine targets should differ in unique and determinable ways. The present study confirms this prediction and, in addition, develops a technique whereby the critical information can be readily perceived by an observer having little training. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0368729

Entities

People

  • Dan A. Davidson
  • Robert J. Hall
  • William F. Dossett

Tags

DTIC Thesaurus Topics

  • Antisubmarine Warfare
  • Classification
  • Delay Lines
  • Echoes
  • Interferometry
  • Optical Filters
  • Sonar Echoes
  • Sonar Targets
  • Submarine Warfare
  • Submarines
  • Target Classification
  • Target Echoes
  • Targets
  • Warfare

Fields of Study

  • Physics

Readers

  • Human-Computer Interaction (HCI).
  • Radar Systems Engineering.
  • Theoretical Analysis.