Accession Number : ADD017566

Title :   Sonar Array with Reduced Grating Lobes.

Descriptive Note : Patent, Filed 16 Mar 94, patented 9 May 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Zehner, William J

Report Date : 09 May 1995

Pagination or Media Count : 11

Abstract : A pulsed transmission, single frequency, high resolution sonar system has reduced grating (side) lobes achieved by employing mechanically fixed antenna array stave tilt angles together with electronic focussing in which phase shifts are substituted for time delays.

Descriptors :   *BEAM FORMING, *PATENTS, *SONAR ARRAYS, ELECTRONICS, TIME INTERVALS, HIGH RESOLUTION, GRATINGS(SPECTRA), DELAY, FOCUSING, TILT, PHASE SHIFT, SONAR PULSES

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE