Performance Improvement for Distributed Active Noise Control Systems Based on Simultaneous Equations Method

Mitsuji MUNEYASU  Ken'ichi KAGAWA  Kensaku FUJII  Takao HINAMOTO  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E88-A   No.7   pp.1760-1764
Publication Date: 2005/07/01
Online ISSN: 
DOI: 10.1093/ietfec/e88-a.7.1760
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Multi-channel Acoustic Signal Processing)
active noise control,  multiple-channel system,  distributed control,  

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For multiple-channel active noise control (ANC) systems, distributed systems consisting of more than one controller are useful. In this paper, we propose a performance improvement algorithm for the distributed multiple-channel ANC system based on the simultaneous equations method. In the proposed algorithm, no estimation of error paths is required. This algorithm can provide good performance in canceling primary noises with auto-/cross-correlations and achieve stable noise reduction under a change of the error paths.