FXLMS 알고리듬을 이용한 사각밀폐공간의 능동소음제어

Active Noise Control of Closed Rectangular Cavity using the FXLMS Algorithms

  • 류경완 (부산대학교 대학원 기계시스템설계) ;
  • 홍진숙 (울산과학대학 디지털기계학부) ;
  • 정의봉 (부산대학교 기계공학부)
  • 발행 : 2009.04.23

초록

This paper investigates active noise control(ANC) of a rectangular cavity using single channel filtered-x least mean square(FXLMS) algorithms to reduce interior noise globally. To obtain global reduction of the interior noise, multichannel active control should be incorporated in general. We, however, examined firstly the optimal location of the secondary speaker that produces a global reduction of the interior noise field. We then investigated the frequency characteristics of the reduction to yield the effective frequency band of the active control system. It follows that the secondary speaker should be located as close to the primary source as possible in order to obtain global reduction.

키워드