マリンエンジニアリング
Online ISSN : 1884-3778
Print ISSN : 1346-1427
ISSN-L : 1346-1427
技術資料
海上監視における航行船舶の水中音検知技術の開発
今里 元信長井 弘志木村 隆則二村 彰
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ジャーナル 認証あり

2018 年 53 巻 5 号 p. 721-726

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  An early warning system is essential for spotting suspicious or unknown ships approaching important facilities located at the coast. For this reason, we have developed a buoy equipped with a marine surveillance system.

  In this paper, we focused our attention on a difference value between Fast Fourier transform and linear prediction methods to enable early detection of underwater sounds from an approaching boat and observed and analyzed underwater sounds from several ships. Results showed that this maritime surveillance system is highly effective in monitoring underwater sounds. We expect that the system will be useful in detecting the presence of dubious ships or poaching boats through underwater sound detection.

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© 2018 公益社団法人 日本マリンエンジニアリング学会
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