한국항해항만학회:학술대회논문집 (Proceedings of the Korean Institute of Navigation and Port Research Conference)
- 한국항해항만학회 2006년도 Asia Navigation Conference
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- Pages.71-78
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- 2006
Study on Estimating the Shape of a Ship by Integrating Radar Images
- Ishiwata, Junya (Graduate School, Tokyo University of Marine Science and Technology) ;
- Fujisaka, Takahiko (Tokyo University of Marine Science and Technology) ;
- Imazu, Hayama (Tokyo University of Marine Science and Technology)
- 발행 : 2006.10.20
초록
The image of an object obtained by the radar is not corresponding to its true shape, because the image of an object observed by the radar is receiving an influence such as multiple-reflections and expanded in bearing because of the beam width of a radar. In addition, a radio wave does not hit the entire surface of an object. Therefore, the image of the front side of a ship facing a radar antenna corresponds to its true shape. In this paper, a method to estimate a ship's shape by means of the integration of the front parts of images obtained from radars is proposed. In addition, a matter, which is observation error of each radar, in using multi-radars, and the process included in the proposed method for solving the matter, are described. As a result of the experiment, the accuracy of about 3 degrees in ship's heading and about 14 meters in length and about 9 meters in beam was obtained.