A technique to detect underwater acoustic signals by utilizing the resultant surface perturbations is discussed. These perturbations result in an amplitude modulation effect on a laser beam reflected by the water surface. A theory to explain this phenomenon is discussed. A detection system based on this theory was developed. Laboratory investigations were conducted to evaluate the characteristics of the system. Preliminary results indicate that detection based on this technique is possible.
A laser sensing scheme for detection of underwater acoustic signals
Ein Laser-Messaufnahmeschema fuer die Wahrnehmung von akustischen Unterwassersignalen
1988
5 Seiten, 13 Quellen
Conference paper
English
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