標題: A modified H-2 feedforward active control system for suppressing broadband random and transient noises
作者: Bai, M
Chen, H
交大名義發表
機械工程學系
National Chiao Tung University
Department of Mechanical Engineering
公開日期: 21-十一月-1996
摘要: Three feedforward active noise control algorithms based on H-2, H-infinity, and modified H-2 optimal model matching principles are investigated in this study. The first two methods provide significant attenuation for broadband random noises. However, the H-2 and H-infinity methods generally result in high-gain controllers at high frequencies, which calls for some truncation measures in the frequency domain. The third method effectively eliminates the high-gain problem of the ordinary H-2 and H-infinity algorithms. In addition, this method is guaranteed to result in a causal and stable controller which is crucial in practical implementation. The algorithms are coded into controllers by using a floating-point digital signal processor. The experimental results show significant attenuation for stationary broadband random noises as well as transient impact noises in a duct. (C) 1996 Academic Press Limited
URI: http://dx.doi.org/10.1006/jsvi.1996.0558
http://hdl.handle.net/11536/923
ISSN: 0022-460X
DOI: 10.1006/jsvi.1996.0558
期刊: JOURNAL OF SOUND AND VIBRATION
Volume: 198
Issue: 1
起始頁: 81
結束頁: 94
顯示於類別:期刊論文


文件中的檔案:

  1. A1996VU83300006.pdf