伝達関数補間を用いた評価点移動時の能動騒音制御

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  • OKUYAMA Tomonao
    Department of Precision Engineering, Faculty of Engineering, Kyoto University
  • MATSUHISA Hiroshi
    Department of Precision Engineering, Faculty of Engineering, Kyoto University
  • UTSUNO Hideo
    Department of Precision Engineering, Faculty of Engineering, Kyoto University
  • PARK Jeong Gyu
    Department of Precision Engineering, Faculty of Engineering, Kyoto University

書誌事項

タイトル別名
  • Active Noise Control for a Moving Evaluation Point Using Transfer Function Interpolation
公開日
2006
DOI
  • 10.1299/jsmec.49.865
  • 10.1299/kikaic.71.2904
公開者
一般社団法人 日本機械学会

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説明

In active noise control (ANC), the transfer function of the error path (TFEP) changes when the evaluation point moves, and it causes a bad performance of noise control. In this study, a new method to identify TFEP at an arbitrary point is proposed. This method is based on the plane wave theory, and the impulse response of TFEP is derived analytically as a function of the position, using measured impulse responses at two points. Applying this method to update the compensation filter of the varying TFEP in a test tube, it is verified by the experiment that the noise can be suppressed significantly without divergence.

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