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자료유형
학술저널
저자정보
장현석 (동아대) 김새한 (현대자동차) 이태오 (보강하이텍) 구경완 (호서대) 이권순 (동아대)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제61권 제7호
발행연도
2012.7
수록면
1,069 - 1,076 (8page)

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초록· 키워드

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We use largely two methods, how to control the noise of the KTX, they are the passive noise control method and the active noise control method. The passive noise control has been used in a variety of ways since the KTX opening day, but lately it has shown the technical limitations by being dropped sharply. So, it is getting important to conduct the research about ANC that is able to reduce the ambient noise when the environmental-factor changes and be installed easily. To reduce a three-dimensional closed-space sound field like a car of a high-speed rail is hard to do using single channel ANC control system. Therefore we have to model the paths of the noise exactly for reducing the noise. And the control speakers and the error mics should be designed for optimal position. In this paper, we designed the transfer functions for modeling the noise paths under the influence of the distance between control speakers & error mics and primary noise speaker in TEST-BED where there is modeled as actual interior of KTX. We have made the modeling and the simulations of interior environment of KTX car by using three frequency bands of 120㎐, 280㎐, 360㎐. After the modeling, we compared the performance of active noise control and also we analyzed what to affect with difference in distance. After comparing of the performance using Pure Tone 120㎐, 280㎐, 360㎐ at each modeling and then we simulated ANC for KTX’s interior noise which we measured really and analyzed.

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Abstract
1. 서론
2. 다중채널 ANC 시스템
3. KTX 실내소음
4. Test-bed의 3차원 음장 모델링
5. 능동소음제어 시뮬레이션
6. 결론
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