A Neural Multiple LMS Based ANC System for Reducing Acoustic Noise of High-Speed Trains

신경회로망 다중 LMS 기법을 이용한 고속철도의 실내소음저감을 위한 ANC 시스템

  • 조현철 (울산과학대학 전기전자학부) ;
  • 이권순 (동아대학교 전기공학과) ;
  • 남현도 (단국대학교 전자전기공학부)
  • Published : 2009.12.01

Abstract

This paper presents a novel active noise control (ANC) system using least mean square (LMS) algorithm and neural network approach for decreasing acoustic noise signals inside high-speed trains. We construct a LMS framework as a nominal ANC system and additionally design an artificial single-layered perceptron model as an auxiliary ANC which is aimed to reduce real-time residuary noise due to its nonstationary and uncertain nature. Parameter vector of the hybrid ANC is determined through online estimation to realize an adaptive ANC configuration by means of the steepest descent algorithm. We achieve simulation experiment to demonstrate the proposed ANC system employing realistic acoustic noise signals measured in Korea Train eXpress (KTX).

Keywords

References

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