한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제14권9호
  • /
  • Pages.877-883
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  • 2004
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  • 1598-2785(pISSN)
  • /
  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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잡음 속에 묻힌 임펄스 소음원 위치 추정

Impulsive Source Localization in Noise

  • 김양한 (한국과학기술원 기계공학과) ;
  • 최영철 (한국과학기술원 기계공학과)
  • 발행 : 2004.03.01
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초록

This paper addresses the way in which we can find where impulsive noise sources are. Specifically, we have an interest in the case that the signal is embedded in noise. We propose a signal processing method that can identify impulsive sources' location. The method is robust with respect to spatially distributed noise. This has been achieved by the modified beamforming method with regard to cepstrum domain is used. It is noteworthy that the cepstrum has the ability to detect periodic pulse signal in noise. Numerical simulation and experiments are performed to verify the method. Results show that the proposed technique is quite powerful for localizing the faults in noisy environments. The method also required less microphones than conventional beamforming method.

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참고문헌

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