航行船舶の監視のための水中音観測

抄録

It is effective that we approach the sensing system on the sea near the key institute to detect a dubious ship early. This paper describes the trial method of discrimination ships by sensing underwater sound. We observed and analyzed underwater sound of ships, calculated the correlation coefficient and the average of power ratio from property of ship's sound. In consequence, we recognized that this is one useful method to discriminate ships. And we tried to construct the real-time sound watching system. Furthermore we tested extracting ship's sound from surrounding sound. We expect that the intelligent watching buoy will be useful to discriminate a dubious ship and a poaching boat by underwater sound.