Designing a Microphone Array System for Noise Measurements on High-Speed Trains

고속철도 차량의 소음 측정을 위한 마이크로폰 어레이 설계 연구

  • 노희민 (한국철도기술연구원 고속철도연구본부) ;
  • 최성훈 (한국철도기술연구원 고속철도연구본부) ;
  • 홍석윤 (서울대학교 조선해양공학부) ;
  • 김석원 (한국철도기술연구원 고속철도연구본부)
  • Received : 2011.09.14
  • Accepted : 2011.10.27
  • Published : 2011.12.26


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.


Grant : 시스템 성능평가 기술개발

Supported by : 국토해양부


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Cited by

  1. Aerodynamic Noise Characteristics of High-speed Trains by the Beamforming Method vol.15, pp.3, 2012,
  2. Investigation into external noise of a high-speed train at different speeds vol.15, 2014,
  3. Theoretical Analysis on the Array Microphone Measurement for Noise from Rails vol.33, pp.4, 2014,