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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Minimization of Shadow Zone for Hull Mounted Sonar

선체 고정형 소나의 음영 구역 최소화

  • Received : 2010.01.11
  • Accepted : 2010.03.04
  • Published : 2010.04.05
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Abstract

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.

Keywords

References

  1. Knight, W. C., "Digital Signal Processing for Sonar", Proc. IEEE, Vol. 69, No. 11, pp. 1451-1506, 1981. https://doi.org/10.1109/PROC.1981.12186
  2. Abeysekera, S. S., "A Non-linear Algorithm for Digital Beamforming of a Widerband Active Sonar Array", IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing, 1999.
  3. Porter, M. B. and Bucker, H. P., "Gaussian Beam Tracing for Computation Ocean Acoustic Fields", J. Acoust. Soc. Am. 81, pp. 912-924, 1987. https://doi.org/10.1121/1.394571
  4. 최지웅, 윤관섭, 나정열, 박정수, 나영남, "천해 고주파 잔향음 예측모델", 한국음향학회지, 2002.
  5. Lurton, X., "An Introduction to Underwater Acoustic", Praxis publishing Ltd, Chichester, UK, pp. 162-165, 2002.
  6. Thorner, J. E., "Approaches to Sonar Beamforming", Southern Tier Technical Conference, IEEE, pp. 69-78, 1990.
  7. ADD Technology Report, NSDC-511-021119, SAIMS Development, 2002.
  8. Mackenzie, K. V., "Nine-term Equation for Sound Speed in the Oceans", J. Acoust. Soc. Amer., Vol. 70, pp. 807-812, 1981. https://doi.org/10.1121/1.386920
  9. David R. Freiden, "Principles of Naval Weapons Systems", US Naval Institute Annapolis, Maryland, pp. 232-238, 1985.
  10. R. J. Urick, "Principles of Underwater Sound", McGraw-Hill, New York, 1983.
  11. 최병웅, 정태진, 류창수, 김인익, 이균경, "선체고정형 소나를 이용한 근거리 소형 물체 탐지 기법", 제7회 해양무기 학술대회 논문 초록집, p. 44, 2008.