Accession Number:

AD0368729

Title:

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

Descriptive Note:

Technical rept.,

Corporate Author:

HUMAN FACTORS RESEARCH INC SANTA BARBARA CALIF

Report Date:

1965-12-01

Pagination or Media Count:

40.0

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

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE