3405 水中音観測による海上監視技術の開発(OS5-3 交通物流の安全・環境技術,OS5 安全・安心・防災,オーガナイズド・セッション(OS))

概要

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An early warning system for sensing suspicious ships approaching the important power plants and facilities located on coastlines has become necessary. Thus, the authors developed a buoy equipped with the maritime surveillance system. In this paper, the results of sensing underwater sound from ships on the actual sea are presented. The underwater sound was recorded with hydrophones mounted on an observation ship and was analyzed by the linear prediction method. The method used to detect underwater sound of ships approaching the observation ship was evaluated. Results show that this technique can be a useful method for real-time underwater sound monitoring. The authors expect that this surveillance buoy system will be useful in predicting the presence of dangerous ships or poaching boats by sensing underwater sound.
2011-12-06