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Proceedings Paper

Sonar watermark embedding and detection: a sea trial report
Author(s): Bijan G. Mobasseri; Nagarjun Chakilam; Robert S. Lynch
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Paper Abstract

This paper reports on performance of a previously reported sonar watermarking algorithm in actual sea trials. Tests were conducted at the South Florida Ocean Measurement Facility in shallow water depths of 200m and a range of 7km subject to a 80dB propagation loss. The watermark was designed to match the acoustic channel simulated in the Sonar Simulation Toolset (SST), but no access to the actual acoustic channel was available prior to the test. Watermark detection was carried out over multiple ping cycles. For a 10-ping cycle, it was possible to achieve zero false alarm and a single miss at SWR=27dB. At SWR=30dB, zero false alarm was maintained but the miss rate increased to three. This experiment has rearmed the detectability of the watermark in actual sea deployment.

Paper Details

Date Published: 12 June 2012
PDF: 10 pages
Proc. SPIE 8372, Ocean Sensing and Monitoring IV, 837215 (12 June 2012);
Show Author Affiliations
Bijan G. Mobasseri, Villanova Univ. (United States)
Nagarjun Chakilam, The MathWorks, Inc. (United States)
Robert S. Lynch, Naval Undersea Warfare Ctr. (United States)

Published in SPIE Proceedings Vol. 8372:
Ocean Sensing and Monitoring IV
Weilin Will Hou; Robert Arnone, Editor(s)

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