Accession Number:

ADA011356

Title:

Electronic Scanning Techniques for Parametric Transmitters

Descriptive Note:

Annual rept. 1 Dec 1972-30 Sep 1973

Corporate Author:

TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS

Personal Author(s):

Report Date:

1974-01-24

Pagination or Media Count:

76.0

Abstract:

A study was conducted to investigate four scanning techniques for forming multiple parametric beams in high resolution parametric sonar systems. A coded pulse scan technique employing coded pulse sequences for azimuth sector identification was found to be best suited for this application. A system was designed, constructed, and used to demonstrate the electronic scanning of a parametric beam. A nominal 2.3 degree beam was steered at angles of plus or minus 1 degrees, plus or minus 7 degrees, and plus or minus 14 degrees. The source level was 181 dB re micro Pa at 1 m. The system developed will be further employed to evaluate word sets to be used in coded pulse parametric transmitters.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE