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Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019
Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji
Article type: Research Article
Authors: Cai, Yinshana | Dong, Longleia; | Zhou, Yanxina
Affiliations: [a] State Key Laboratory for Strength and Vibration, School of Aerospace, Xi’an Jiaotong University, Xi’an, Shaanxi, China
Correspondence: [*] Corresponding author: Longlei Dong, State Key Laboratory for Strength and Vibration, School of Aerospace, Xi’an Jiaotong University, Xi’an, No. 28, Xianning West Road, Shaanxi 710049, China. Tel.: +86 13087554598; E-mail: dongll@xjtu.edu.cn
Abstract: Electrodynamic loudspeakers are the main actuators of the active noise control system, and their harmonic distortion has a detrimental effect on the noise reduction of the system. To improve the performance, this paper proposes a novel narrowband active noise control algorithm with compensating the nonlinearity of the loudspeaker. In the proposed algorithm, the parameters of the controller are obtained by iteration through the filtered-x least mean square algorithm. Meanwhile, they are adjusted in real-time by establishing the online inverse model of the loudspeaker using the Volterra expansion. The simulation experiments for the typical loudspeaker model show that the proposed algorithm can dramatically improve noise reduction compared to the conventional algorithm.
Keywords: Narrowband active noise control, harmonic distortion, nonlinear compensation
DOI: 10.3233/JAE-209326
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 229-235, 2020
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