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A Study on the Modeling for Reducing High-Speed Train KTX's Interior Noise using Active Noise Control Technique

능동소음제어를 이용한 고속철도 KTX의 내소음 저감을 위한 모델링에 관한 연구

  • Received : 2011.12.19
  • Accepted : 2012.10.04
  • Published : 2012.11.01

Abstract

In this paper, experiments were conducted to validate the importance and necessity of modeling. The modeling was performed using 120Hz and 280Hz noise of KTX main interior noise frequency. After the modeling, In order to solve the system instability by the additional path that exists between the control speaker and the error microphone, the secondary path was estimated. Next, simulations were performed to verify the modeling's necessity and importance. Thought the simulation results, we confirmed that the system with the modeling is more effective for noise reduction than without the modeling.

Keywords

Active noise control;KTX interior noise;Multiple-channel FXLMS algorithm;Modeling

Acknowledgement

Supported by : 한국학술진흥재단

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