Accession Number : ADD014692

Title :   Towed Sonar Receiving Array.

Descriptive Note : Patent, Filed 25 Feb 74, patented 18 Sep 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Wardle, William F

Report Date : 18 Sep 1990

Pagination or Media Count : 5

Abstract : A mobile sonar surveillance system having a fully populated circular shaped horizontal receiving array steered in edgefired directions with overlapping coverage of beams. The arrays has a plurality of hydrophones randomly spaced and mounted on a series of parallel lines in the same horizontal plane and is suitable for towing by a single small ship. For alignment of a received signal one or more single beams suitable for rotation can be steered azimuthally with the proper set of synchronized variable delays. These beams will retain approximately the same parameters as they rotate. Keywords: Patents. (R.H.)

Descriptors :   *HYDROPHONES, *OCEAN SURVEILLANCE, *PATENTS, *SMALL SHIPS, *TOWED SONAR, DELAY, HORIZONTAL ORIENTATION, MOBILE, SONAR, SURVEILLANCE, SYNCHRONISM, VARIABLES

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE