Accession Number : AD0727125

Title :   Notes on Side-Looking Sonar.

Descriptive Note : Technical memo.,

Corporate Author : SCRIPPS INSTITUTION OF OCEANOGRAPHY SAN DIEGO CALIF MARINE PHYSICAL LAB

Personal Author(s) : Spiess,F. N.

Report Date : 21 JUN 1967

Pagination or Media Count : 7

Abstract : The purpose of this memorandum is to set down certain elementary principles relating to use of side-looking, shadowgraph-type sonars to search for objects on the sea floor or to map its roughness. Although the topics relating to search rate and the use of unfocussed or fixed focussed systems have been well-known for some time the advantages of dynamic focussing and multiple beam operation represent much more recent developments not yet incorporated in hardware. (Author)

Descriptors :   (*SONAR EQUIPMENT, FOCUSING), (*OCEAN BOTTOM, SOUND RANGING), TRANSDUCERS, PERFORMANCE(ENGINEERING), UNDERWATER OBJECT LOCATORS

Subject Categories : Physical and Dynamic Oceanography
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE