The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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Underwater Acoustic Barrier with Passive Ocean Time Reversal and Application to Underwater Detection

수동형 해양 시역전 수중음향장벽과 수중탐지에의 응용

  • 신기철 (LIG넥스원(주) Maritime연구소) ;
  • 김재수 (한국해양대학교, 해양공학과)
  • Received : 2012.09.11
  • Accepted : 2012.10.24
  • Published : 2012.11.30
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Abstract

Target detection by acoustic barrier method includes active and passive sonar technique and time reversal process whose theoretical background is already well defined. In this paper, the concept and theory of underwater detection by passive ocean time reversal is established. Also, the reason that this study was conducted was to investigate feasibility of complex mathematical modeling to provide some predictive capability for underwater acoustic barrier with passive time reversal. It may eventually lead to a useful predictive tool when designing underwater acoustic barrier detection system using the passive time reversal concept.

시역전 기술을 활용한 수중음향장벽에 의한 수중물체 탐지는 능동소나와 수동소나의 기법과 이론적 배경이 명확한 시역전 처리의 개념을 포함하고 있다. 본 논문에서는 수동형 해양 시역전에 의한 수중탐지의 개념과 이론을 수립하였다. 또한 수중음향 전파모델을 활용하여 모델링을 통해 수동형 시역전 수중음향장벽의 성능 예측을 수행하였다. 본 연구의 결과는 수동형 시역전 개념을 이용한 수중음향장벽 탐지시스템의 설계 시 유용한 성능예측 도구로 활용될 수 있다.

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References

  1. G. F. Edelmann, T. Akal, W. S. Hodgkiss, Seongil Kim, W. A. Kuperman, and H. C. Song, "An Initial Demonstration of Underwater Acoustic Communication Using Time Reversal," IEEE J. Ocean Eng., vol. 27, no. 3, pp. 602-609, 2002. https://doi.org/10.1109/JOE.2002.1040942
  2. H. C. Song, W. A. Kuperman, W. S. Hodgkiss, T. Akal, and P. Guerrini, "Demonstration of a High- Frequency Acoustic Barrier With a Time-Reversal Mirror," IEEE J. Oceanic Eng., vol. 28, pp. 246-249, 2003. https://doi.org/10.1109/JOE.2003.811900
  3. B. K. Choi, B. C. Kim, A. Sutin, A. Sarvazyan, "Ultrasonic focused waveform generation using time reversal acoustic focusing system," J. Mechanical Science and Technology, vol. 22, no. 4, pp. 699-707, 2008. https://doi.org/10.1007/s12206-007-1203-6
  4. W. A. Kuperman, W. S. Hodgkiss, H. C. Song, T. Akal, C. Ferla, and D. R. Jackson, "Phase conjugation in the ocean: Experimental demonstration of an acoustic time-reversal mirror," J. Acoust. Soc. Am., vol. 103, pp. 25-40, 1998. https://doi.org/10.1121/1.423233
  5. A. Tesei, H.C. Song, P. Guerrini, P. Roux, W.S. Hodgkiss, T. Akal, M. Stevenson, and W.A. Kuperman, A high frequency active underwater acoustic barrier experiment using a time reversal mirror, High Frequency Ocean Acoustics, La Jolla, CA, 2004.
  6. A. Tesei, M. Stevenson, K. Sabra, P. Roux, T. Akal, and W. A. Kuperman, "Comparison of data processing methodologies for robust detection of small intruders crossing a high frequency, time-reversal-based acoustic barrier," New Concepts for Harbor Protection, Littoral Security, and Shallow-Water Acoustic Communications (TICA-05), pp. 4-8 July, 2005.
  7. D. Rouseff, D. R. Jackson, W. L. J. Fox, C. D. Jones, J. A. Ritcey, and D. R. Dowling, "Underwater Acoustic Communication by Passive-Phase Conjugation: Theory and Experimental Results," IEEE J. Oceanic Eng., vol. 26, pp. 821-831, 2001. https://doi.org/10.1109/48.972122
  8. J. S. Kim, H. C. Song and W. A. Kuperman, "Adaptive time-reversal mirror," J. Acoust. Soc. Am. vol. 109, pp. 1817-1825, 2001. https://doi.org/10.1121/1.1358299
  9. J. S. Kim and K. C. Shin, "Multiple focusing with adaptive time-reversal mirror," J. Acoust. Soc. Am. vol. 115, no. 2, pp. 600-606, 2004. https://doi.org/10.1121/1.1640389
  10. H. C. Song, W. S. Hodgkiss, W. A. Kuperman, T. Akal, and M. Stevenson, "Multiuser Communication Using Passive Time Reversal," IEEE J. Oceanic Eng., vol. 32, pp. 915-926, 2007. https://doi.org/10.1109/JOE.2007.904311
  11. T. Yang, "Temporal resolutions of time-reversed and passive-phase conjugation for underwater acoustic communication," IEEE J. Ocean Eng., vol. 28, no. 2, pp. 229-245, 2003. https://doi.org/10.1109/JOE.2003.811895