Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Localization of Underwater Noise Sources Using TDOA (Time Difference of Arrival) Method

도달지연시간 기법을 이용한 수중 소음원의 위치추적

  • Ahn, Byoung-Kwon (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University) ;
  • Go, Yeong-Ju (Dept. of Aerospace Engineering, Chungnam National University) ;
  • Rhee, Wook (Dept. of Aerospace Engineering, Chungnam National University) ;
  • Choi, Jong-Soo (Dept. of Aerospace Engineering, Chungnam National University) ;
  • Lee, Chang-Sup (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University)
  • 안병권 (충남대학교 선박해양공학과) ;
  • 고영주 (충남대학교 항공우주공학과) ;
  • 이욱 (충남대학교 항공우주공학과) ;
  • 최종수 (충남대학교 항공우주공학과) ;
  • 이창섭 (충남대학교 선박해양공학과)
  • Received : 2010.11.29
  • Accepted : 2011.01.24
  • Published : 2011.04.20
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Abstract

As considerable interests in noise emission from a ship have been increased, the need for localization of noise sources of the marine propeller generating cavitation and singing noise is looming large. In many practical cases, cavitation and singing noise occur on a particular position of the certain blade of the propeller. It is so important to know the position of noise source correctly in order to eliminate or suppress unwanted noise. In this study, we develop "noise source localization technology" using TDOA method. Experimental measurements carried out at the circulating water channel and towing tank show that noise source can be clearly identified and localized using TDOA method.

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References

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