Electronic Scanning Techniques for Parametric Transmitters
Annual rept. 1 Dec 1972-30 Sep 1973
TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS
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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.
- Acoustic Detection and Detectors