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http://dx.doi.org/10.7782/JKSR.2011.14.6.477

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

Noh, Hee-Min (한국철도기술연구원 고속철도연구본부)
Choi, Sung-Hoon (한국철도기술연구원 고속철도연구본부)
Hong, Suk-Yoon (서울대학교 조선해양공학부)
Kim, Seog-Won (한국철도기술연구원 고속철도연구본부)
Publication Information
Journal of the Korean Society for Railway / v.14, no.6, 2011 , pp. 477-483 More about this Journal
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
Noise source; Microphone array; Delay and sum beamforming;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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