| Minimization of Shadow Zone for Hull Mounted Sonar |
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Se-Han Lim, Yun-Hoo Han, Chan-Joo Jang |
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| 선체 고정형 소나의 음영 구역 최소화 |
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임세한, 한윤후, 장찬주 |
1해군사관학교
2해군작전사
3한국해양연구원 |
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| Abstract |
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This paper introduces the Hull Mounted Sonar Vertical Scanning(HMS Verscan) technique to overcome the limitation of target detection in short range shadow zone. Numerical experiments were done with the HMS Verscan taking advantage of the vertical beamforming technique for two-dimension hydrospace(range-depth). For numerical experiments, ray model and high-frequency monostatic reverberation model were used. HMS Verscan increased a sound pressure level at the short range shadow zone through reflections at the sea surface and seafloor. Inclusion of the boundary scattering improved target detection due to the sound reflected into the shadow zone. |
| Key Words:
Hull Mounted Sonar, Shadow Zone, Beamforming |
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