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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Study on Depth Estimation and Characteristic Analysis of Underwater Source Based on Deep-Sea Broadband Signal Modeling

심해역 광대역 신호 모델링 기반 수중 음원의 심도 추정 및 특성 분석 연구

  • Sunhyo Kim (Marine Domain & Security Research Department, Korea Institute of Ocean Science & Technology) ;
  • Hansoo Kim (Marine Domain & Security Research Department, Korea Institute of Ocean Science & Technology) ;
  • Donhyug Kang (Marine Domain & Security Research Department, Korea Institute of Ocean Science & Technology) ;
  • Sungho Cho (Marine Domain & Security Research Department, Korea Institute of Ocean Science & Technology)
  • 김선효 (한국해양과학기술원 해양영토.방위연구부) ;
  • 김한수 (한국해양과학기술원 해양영토.방위연구부) ;
  • 강돈혁 (한국해양과학기술원 해양영토.방위연구부) ;
  • 조성호 (한국해양과학기술원 해양영토.방위연구부)
  • Received : 2024.05.22
  • Accepted : 2024.07.24
  • Published : 2024.10.05
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Abstract

Studies on estimating the underwater sound source localization using acoustic signal characteristics have mainly been conducted in shallow waters. Recently, technologies for stably and efficiently estimating the underwater sound sources localization using the underwater sound propagation characteristics of the Reliable Acoustic Path(RAP) in deep water areas are being studied. Underwater surveillance technology in deep sea areas is known to have the advantage of having low detection performance variability due to time-varying underwater environments and having a small shadow zone, making it easy to stably detect underwater sound sources and estimate location even from relatively long distance. In this study, we analyzed the sound propagation characteristics based on the actual marine environment in the deep sea of the Korean Peninsula and conducted a study to analyze the estimation performance of sound source depth using the broadband interference pattern of direct wave and sea surface reflected waves radiating from underwater sound sources.

Keywords

Acknowledgement

본 연구는 2024년 정부(방위사업청)의 재원으로 국방기술진흥연구소(KRIT)의 지원을 받아 수행된 연구임(KRIT-CT-22-056, 과제명 : 해양생물음 기반 음향탐지 M&S 기법 및 가시화 기법 연구)

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