Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Implementation of active mufflers using stabilized adaptive IIR filters

안정한 적응 IIR 필터를 사용한 능동머플러 구현

  • Bang, Kyung-Uk (Department Of Electrical Engineering, Dankook University) ;
  • Seo, Sung-Dae (Department Of Electrical Engineering, Dankook University) ;
  • Nam, Hyun-Do (Department Of Electrical Engineering, Dankook University)
  • 방경욱 (단국대학교 대학원 전기공학과) ;
  • 서성대 (단국대학교 대학원 전기공학과) ;
  • 남현도 (단국대학교 대학원 전기공학과)
  • Published : 2005.07.18
Download PDF
⟨ Previous Next ⟩

Abstract

Noise can make surrounding environments inferior and deteriorates operation efficiency, and it can bring aural damage as well as give a person psychological stress. Therefore, necessity of study about noise control is increased for better labor conditions and agreeable habitat. In this paper, implementation of active mufflers using a stable IIR adaptive filters is presented. The IIR filter structure is more effective when acoustic feedback exists, but the adaptive IIR filters could be unstable when the filter algorithm is not yet converged. A stabilizing process for adaptive IIR filter is introduced in this paper. Experiments using a TMS320C32 digital signal processor have performed to show the effectiveness of a proposed algorithm.

Keywords