基于增强扩散策略的多设备节点分布式主动噪声控制系统的实验研究

IF 2.1 2区 物理与天体物理 Q2 ACOUSTICS
Tianyou Li, Sipei Zhao, Li Rao, Haishan Zou, Kai Chen, Jing Lu, Ian S Burnett
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引用次数: 0

摘要

最近,人们开始探索分布式主动噪声控制(DANC)算法,以降低计算复杂度,同时确保系统稳定性,从而超越传统的集中式和分散式算法。现有的大多数 DANC 算法都假设每个节点只有一对扬声器和麦克风,这限制了它们在实际应用中的灵活性。相比之下,本文基于最近开发的增强扩散策略,提出了一种具有通用多设备节点的 DANC 算法,从而实现了灵活、可扩展的 ANC 应用。本文开发了一个基于多核数字信号处理器平台的实时分布式 ANC 系统,以比较所提出的扩展增强扩散算法与现有的集中式、分散式和增强扩散算法的控制性能。实时实验证明,所提出的算法具有与集中式算法一致的降噪性能,同时降低了全局计算复杂度,避免了分散式算法的系统不稳定风险。此外,与之前的增强扩散算法相比,新算法提高了收敛速度,降低了全局通信成本。实验结果表明了所提出的 DANC 算法在通用系统配置中的应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental study of a distributed active noise control system with multi-device nodes based on augmented diffusion strategy.

Recently, distributed active noise control (DANC) algorithms have been explored as a way to reduce computational complexity while ensuring system stability, thereby outperforming conventional centralized and decentralized algorithms. Most existing DANC algorithms assume that each node has only one pair of loudspeaker and microphone, limiting their flexibility in practical applications. In contrast, this paper proposes a DANC algorithm with general multi-device nodes based on the recently developed augmented diffusion strategy, allowing flexible and scalable ANC applications. A real-time distributed ANC system based on a multi-core digital signal processor platform is developed in order to compare the control performance of the proposed extended augmented diffusion algorithm with that of existing centralized, decentralized and augmented diffusion algorithms. Real-time experiments demonstrate that the proposed algorithm exhibits noise reduction performance consistent with that of the centralized algorithm while achieving lower global computational complexity and avoiding the system instability risk of the decentralized algorithm. Further, the new algorithm improves convergence speed and reduces the global communication cost compared to the previous augmented diffusion algorithm. Experimental results indicate the application potential of the proposed DANC algorithm for a generalized system configuration.

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来源期刊
CiteScore
4.60
自引率
16.70%
发文量
1433
审稿时长
4.7 months
期刊介绍: Since 1929 The Journal of the Acoustical Society of America has been the leading source of theoretical and experimental research results in the broad interdisciplinary study of sound. Subject coverage includes: linear and nonlinear acoustics; aeroacoustics, underwater sound and acoustical oceanography; ultrasonics and quantum acoustics; architectural and structural acoustics and vibration; speech, music and noise; psychology and physiology of hearing; engineering acoustics, transduction; bioacoustics, animal bioacoustics.
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