Performance analysis of decentralized multi-channel feedback systems for active noise control in free space

Publication Type:
Journal Article
Citation:
Applied Acoustics, 2013, 74 (1), pp. 181 - 188
Issue Date:
2013-01-01
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This paper investigates the performance of decentralized multi-channel feedback analog control systems, which are flexible and economic for practical applications of active noise control. The generalized Nyquist theorem and Gerschgorin circle theorem are used to derive a sufficient stability condition in terms of the predefined maximum noise amplification and the geometrical configuration of the independent controllers, and the noise reduction performance of the multi-channel system is predicted with the design and geometrical configuration of the independent controllers. Simulation and experimental results are presented to illustrate the effectiveness of the proposed analysis. © 2012 Elsevier Ltd. All rights reserved.
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