대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 D
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- Pages.3066-3068
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- 2005
안정한 적응 IIR 필터를 사용한 능동머플러 구현
Implementation of active mufflers using stabilized adaptive IIR filters
- 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)
- 발행 : 2005.07.18
초록
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.
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