Active noise cancellation in ducts using internal model-based control algorithms

被引：20
|
作者：
Hu, JS
机构：
[1] Department of Control Engineering, National Chao Tung University, Hsinchu
来源：
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY | 1996年 / 4卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/87.486342
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A feedback control algorithm based on the internal model principle is proposed to solve the active noise control (ANC) problem in ducts. Because of its infinite open-loop gain at selected frequencies, the controller is able, at the cancellation speaker position, to block noise transmission of these frequencies. In other words, the speaker acts like a totally reflective boundary, Stability analysis of the closed-loop system is performed using the Nyquist criterion, Experimental results confirm the theoretical analysis, showing an average noise level reduction of 30 to 40 dB at the target frequencies.
引用
收藏
页码：163 / 170
页数：8
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