Robust Wiener controller design with acoustic feedback for active noise control systems

被引:10
作者
An, Fengyan [1 ]
Cao, Yin [2 ]
Wu, Ming [3 ]
Sun, Hongling [3 ]
Liu, Bilong [1 ]
Yang, Jun [3 ]
机构
[1] Qingdao Univ Technol, Sch Mech & Automot Engn, Shandong 266520, Shandong, Peoples R China
[2] Univ Surrey, Ctr Vis Speech & Signal Proc, Guildford GU2 7XH, Surrey, England
[3] Chinese Acad Sci, Key Lab Noise & Vibrat Res, Inst Acoust, Beijing 100190, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
VARIABLE STEP-SIZE; ALGORITHM; CANCELLATION; PROPAGATION;
D O I
10.1121/1.5097603
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Although the acoustic feedback could be alleviated by the neutralization method with a feedback model, an active noise control system could still suffer from being unstable if the feedback path exhibits significant variations. In this letter, a modified Wiener controller is introduced to enhance the robust stability with a fixed feedback neutralization filter. The proposed controller is designed with frequency-weighted penalties, which are adjusted iteratively according to Nyquist stability criterion. Experiment results based on a ventilation duct system shows that the robust stability could be achieved with the proposed method while a relatively good performance could be maintained. (C) 2019 Acoustical Society of America
引用
收藏
页码:EL291 / EL296
页数:6
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