대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1998년도 하계학술대회 논문집 B
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- Pages.654-656
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- 1998
DSP56001을 이용한 능동소음제어의 구현
Implementation of Active Noise Control with DSP56001
- Kim, Young-Hoon (Electrical Eng. Soongsil University) ;
- Park, Jang-Kwan (Electrical Eng. Soongsil University) ;
- Koo, Choon-Keun (Sungnam Polytechnic College) ;
- Chung, Chan-Soo (Electrical Eng. Soongsil University)
- 발행 : 1998.07.20
초록
This paper deal with the implementation of Active Noise Control (ANC) in a short duct. In case of ANC in the air duct, input microphone, control speaker, error microphone are used. But we can't use input microphone because of the characteristics of short duct. It is difficult to avoid howl. So we propose single-channel adaptive feedback ANC which is composed only error microphone and control speaker without input microphone. FXLMS algorithm is used to compensate for the time delay of the error path. Experimental results show that the controller reduce noise signal sufficiently.
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