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...

Full description

Saved in:
Bibliographic Details
Published in:Symmetry (Basel) Vol. 14; no. 3; p. 607
Main Authors: An, Fengyan, Liu, Bilong
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.03.2022
Subjects:
Active noise control
Algorithms
Behavior
Control algorithms
Control systems
Controllers
Convergence
Narrowband
Noise control
Reference signals
ISSN:2073-8994, 2073-8994
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:2073-8994
2073-8994
DOI:10.3390/sym14030607