期刊
JOURNAL OF SOUND AND VIBRATION
卷 532, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2022.116986
关键词
Narrowband active noise control; Diffusion FxLMS; Distributed control; Convergence analysis
资金
- National Natural Science Foundation of China [11804365, 11804368]
- Frontier Exploration Project Independently Deployed by Institute of Acoustics, Chinese Academy of Sciences [QYTS202009]
This study proposes a diffusion narrowband filtered-x least-mean-square (DNFxLMS) algorithm based on distributed acoustic sensor networks to address the high computational complexity issue in conventional multichannel narrowband active noise control (MNANC) systems. A comprehensive statistical analysis and stability boundary discussion are conducted, and expressions for steady-state mean-square deviation (MSD) and excess mean-square error (EMSE) are derived. Extensive computer simulations verify the theoretical analysis and evaluate the usefulness of the DNFxLMS algorithm.
A conventional multichannel narrowband active noise control (MNANC) system can effectively suppress low-frequency periodic noise. However, a large number of secondary sources and error sensors are required in the system, which leads to high computational complexity. To address this problem, a diffusion narrowband filtered-x least-mean-square (DNFxLMS) algorithm is proposed based on distributed acoustic sensor networks. The computational burden is dispersed among the nodes over the networks. A comprehensive statistical analysis of the algorithm is conducted to better understand its convergence properties. Specifically, we investigate the convergence behavior of the weight-error vector in the mean and mean-square sense. Based on this analysis, the stability bound of the system is discussed. The expressions for steady-state mean-square deviation (MSD) and excess mean-square error (EMSE) are derived. Extensive computer simulations are conducted to verify the theoretical analysis and to evaluate the usefulness of the DNFxLMS algorithm.
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