Narrowband Active Noise Control Using Decimated Controller for Disturbance with Close Frequencies

In this paper, multi-channel active noise control systems subjected to narrowband disturbances with close frequencies are investigated. Instead of controlling each frequency separately, a mixed-reference signal is assumed and thus a transversal controller is utilized. First, the convergent behaviors...

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Veröffentlicht in:Symmetry (Basel) Jg. 14; H. 3; S. 607
Hauptverfasser: An, Fengyan, Liu, Bilong
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Basel MDPI AG 01.03.2022
Schlagworte:
Active noise control
Algorithms
Behavior
Control algorithms
Control systems
Controllers
Convergence
Narrowband
Noise control
Reference signals
ISSN:2073-8994, 2073-8994
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Zusammenfassung:In this paper, multi-channel active noise control systems subjected to narrowband disturbances with close frequencies are investigated. Instead of controlling each frequency separately, a mixed-reference signal is assumed and thus a transversal controller is utilized. First, the convergent behaviors of a generalized FxLMS-based algorithm are theoretically analyzed in the mean sense, from which the influence of the controller structure on the convergence rate is revealed. A novel narrowband algorithm is then proposed, in which a decimated transversal controller is used to alleviate the computational burden. Simulations based on a 4 × 8 active-noise-control system are carried out to verify the proposed method. The results show that a good convergence rate can be obtained, and the computational complexity can also be greatly reduced.
Bibliographie:ObjectType-Article-1
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content type line 14
ISSN:2073-8994
2073-8994
DOI:10.3390/sym14030607