Accession Number:

AD0768398

Title:

Feasibility Demonstration of Low Frequency Acousto-Optical Imaging for Sonar Applications

Descriptive Note:

Interim rept. Jan 1972-Jun 1973 on phase 1

Corporate Author:

TRW SYSTEMS GROUP REDONDO BEACH CA SPACE VEHICLES DIV

Report Date:

1973-07-12

Pagination or Media Count:

109.0

Abstract:

Analysis and experiments were performed to prove the feasibility of an underwater imaging system based on acousto-optical imaging for sonar applications at frequencies from 25 to a few hundred KHz. Experimental results confirming sensitivity and resolution are presented together with images of insonified objects at a distance of 15 feet the maximum allowed by the size of the test facility. A novel heterodyning technique was devised to perform low frequency imaging. Based upon the laboratory experiments, range and resolution achievable with the acousto-optical imaging sonar are estimated. Construction of a high resolution acousto-optical imaging sonar is entirely feasible.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE