The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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Theoretical Development and Experimental Investigation of Underwater Acoustic Communication for Multiple Receiving Locations Based on the Adaptive Time-Reversal Processing

다중수신 수중음향통신을 위한 적응 시계열반전처리 기법의 이론연구와 실험적 검증

  • 신기철 (넥스원퓨쳐(주) 수중연구소) ;
  • 변양헌 (한국해양대학교 해양개발공학부) ;
  • 김재수 (한국해양대학교 해양개발공학부)
  • Published : 2006.07.01
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Abstract

Time-reversal processing (TRP) has been shown as an effective way to focus in both time and space. The temporal focusing properties have been used extensively in underwater acoustics communications. Recently. adaptive time-reversal processing (ATRP) was applied to the simultaneous multiple focusing in an ocean waveguide. In this study. multiple focusing with ATRP is extended to the underwater acoustic communication algorithm for multiple receiving locations. The developed algorithm is applied to the underwater acoustic communication to show, via simulation and real data, that the simultaneous self-equalization at multiple receiving locations is achieved.

시계열반전처리는 시간과 공간영역 동시에 집속을 수행할 수 있는 효과적인 방법으로 증명되어 왔으며, 시간영역에서의 집속 특성은 수중음향통신에서 광범위하게 이용되고 있다. 최근에는 해양도파관에서 동시 다중 집속이 적응 시계열 반전처리에 의해 구현되었다. 본 연구에서 적응 시계열반전처리에 의한 동시 다중 집속은 다중 수신을 위한 수중음향 통신 알고리즘으로 확장되며, 개발된 알고리즘은 수치실험과 실 데이터를 통해 다중 수신 위치에 동시에 자기등화가 가능함을 보였다.

Keywords

References

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