Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on Mine Localization of Forward Looking Sonar Considering the Effect of Underwater Sound Refraction

수중 음파 굴절효과를 고려한 전방주시소나 기뢰 위치 추정기법 연구

  • Sul, Hoseok (Department of Marine Science and Convergence Technology, Hanyang University) ;
  • Oh, Raegeun (Department of Marine Science and Convergence Technology, Hanyang University) ;
  • Yang, Wonjun (Department of Marine Science and Convergence Technology, Hanyang University) ;
  • Yoon, Young Geul (Department of Marine Science and Convergence Technology, Hanyang University) ;
  • Choi, Jee Woong (Department of Marine Science and Convergence Engineering, Hanyang University ERICA) ;
  • Han, Sangkyu (R&D Center, Conet sys Co., Ltd.) ;
  • Kwon, Bumsoo (Naval R&D Center / Naval System 2 Team, Hanwha Systmes Co., Ltd.)
  • 설호석 (한양대학교 해양융합과학과) ;
  • 오래근 (한양대학교 해양융합과학과) ;
  • 양원준 (한양대학교 해양융합과학과) ;
  • 윤영글 (한양대학교 해양융합과학과) ;
  • 최지웅 (한양대학교 ERICA 해양융합공학과) ;
  • 한상규 (코넷시스(주) 연구소) ;
  • 권범수 (한화시스템(주) 해양연구소/해양시스템2팀)
  • Received : 2021.11.18
  • Accepted : 2022.04.29
  • Published : 2022.06.05
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Abstract

Mine detection has been mainly studied with images of the forward-looking sonar. Forward-looking sonar assumes the propagation path of the sound wave as a straight path, creating the surrounding images. This might lead to errors in the detection by ignoring the refraction of the sound wave. In this study, we propose a mine localization method that can robustly identify the location of mines in an underwater environment by considering the refraction of sound waves. We propose a method of estimating the elevation angle of arrival of the target echo signal in a single receiver, and estimate the mine location by applying the estimated elevation angle of arrival to ray tracing. As a result of simulation, the method proposed in this paper was more effective in estimating the mine localization than the existing method that assumed the propagation path as a straight line.

Keywords

Acknowledgement

이 논문은 2019년도 한화시스템(주)의 재원을 지원 받아 수행된 연구임.

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