Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2011.10a
  • /
  • Pages.717-722
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  • 2011
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Designing a Microphone Array System for Noise Measurements on High-Speed Trains

고속철도 차량의 소음 측정을 위한 마이크로폰 어레이 설계에 관한 연구

  • 노희민 (한국철도기술연구원 고속철도연구본부) ;
  • 최성훈 (한국철도기술연구원 고속철도연구본부) ;
  • 홍석윤 (서울대학교 조선해양공학과)
  • Published : 2011.10.27
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Abstract

In this paper, noise source localization of the Korean high speed train was conducted by using delay and sum beam-forming method of a microphone array. At first, the microphone array having irregular configuration was designed and the resolution of which was analyzed from parameters such as 3-dB bandwidth and maximum side-lobe level. After the demonstration, the microphone array was applied on the high speed train and noise localization of the high speed train driving at 300 km/h was performed successfully.

Keywords