상세 보기
초록
In this paper, we propose an active noise reduction system (ANRS) for active noise barriers (ANB) along with a 2x2x2 multi-channel active noise control (ANC) technique. The ANRS, a Y-shaped structural device, operates as a cost-effective ANC system which can be easily installed on the top of existing passive noise barriers. To reduce the diffracted noise behind the barriers, we focus on sound pressure reduction in the diffraction edges near the error microphones, which behaves like virtual sources (see Fig. 2. for details). It is demonstrated that the diffracted noise can be reduced effectively. Finally, the performance of the ANRS is verified experimentally by utilizing several noise sources in the anechoic chamber.
키워드
Active noise barrier; Active noise control (ANC); Multi-channel filtered-x LMS (MFXLMS); Active noise barriers; Active noise reductions; Error microphones; Multi-channel; Multi-channel filtered-x LMS (MFXLMS); Noise barriers; Noise source; Sound pressures; Virtual sources; Acoustic noise measurement; Acoustic variables control; Active noise control
- 제목
- Active noise reduction system using multi-channel ANC
- 저자
- Jung, Tae-Ho; Kim, Jung-Hee; Kim, Kyoung-Jae; Nam, Sang-Won
- 발행일
- 2011-10
- 유형
- Conference Paper
- 저널명
- International Conference on Control, Automation and Systems
- 페이지
- 36 ~ 39