Accession Number : AD0757253

Title :   Investigation of a Quasi-Holographic Synthetic-Aperture Acoustical Imaging System.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Driscoll,Robert George

Report Date : DEC 1972

Pagination or Media Count : 44

Abstract : A side-looking sonar system which uses coherent electrical processing is investigated. Such a system produces a quasi-hologram of the reflected sound field which may be subsequently imaged to give a visual presentation of the insonified region. An actual working laboratory system is constructed and several quasi-holograms are depicted in the Data and Results section. Imaging is not completed, however, an optical processing arrangement to accomplish this task is presented. (Author)

Descriptors :   (*SONAR SIGNALS, STEREOPHOTOGRAPHY), UNDERWATER SOUND SIGNALS, UNDERWATER PHOTOGRAPHY, RESOLUTION, EXPERIMENTAL DESIGN, THESES

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE