A Frequency-Weighted Leaky Fxlms Algorithm with Application to Feedback Active Noise Control Systems

The trouble caused by instability of the controller and output saturation can destroy noise reduction performance of feedback active noise control (ANC) systems. Based on the traditional leaky filtered-x least mean square (FxLMS) algorithm, a frequency-weighted leaky FxLMS algorithm is proposed in t...

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Bibliographic Details
Published inProceedings of the ... IEEE International Conference on Acoustics, Speech and Signal Processing (1998) pp. 1 - 5
Main Authors Tang, Yu, Zhang, Hongwei
Format Conference Proceeding
LanguageEnglish
Published IEEE 04.06.2023
Subjects
Active noise control
constrained optimization
Control systems
Ducts
Filtering algorithms
Frequency-domain analysis
leaky FxLMS
Noise reduction
output saturation
Signal processing
Signal processing algorithms
stability
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ISSN2379-190X
DOI10.1109/ICASSP49357.2023.10097177

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Summary:The trouble caused by instability of the controller and output saturation can destroy noise reduction performance of feedback active noise control (ANC) systems. Based on the traditional leaky filtered-x least mean square (FxLMS) algorithm, a frequency-weighted leaky FxLMS algorithm is proposed in this paper, where the weight factors of the proposed algorithm are characterized in frequency-domain and can be calculated directly by solving a constrained optimization problem. Moreover, it possesses the ability to depress the control filter only at a few frequencies, which are associated with instability of the controller or output saturation, to cut down loss in noise reduction performance. Simulations and experiments are conducted in a duct ANC system to illustrate the feasibility of our algorithm.
ISSN:2379-190X
DOI:10.1109/ICASSP49357.2023.10097177