Convex combination-based active impulse noise control system

Convex combination-based active impulse noise control system
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基于凸组合的主动脉冲噪声控制系统

DOI:
10.1177/1461348419838394
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发表时间:
2019-03
期刊:
Journal of Low Frequency Noise, Vibration and Active Control
影响因子:
--
通讯作者:
Bin Chen
Bin Chen
中科院分区:
其他
文献类型:
--
作者:
Ning Yu;Zhaoxia Li;Yinfeng Wu;Renjian Feng;Bin Chen

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有源噪声控制在抑制低频噪声方面表现出良好的性能,因此得到了广泛的应用。然而,传统的有源噪声控制系统在实际应用中对脉冲噪声的控制效果并不理想。提出了一种基于滤波x最小均方和滤波x最小核风险敏感损失自适应算法(CFxLM)凸组合的脉冲噪声抑制方法。由于LMS算法的简单性,相关滤波器被选为快速滤波器。由于最小核风险敏感损失算法对脉冲噪声具有鲁棒性,且收敛性能好,本文首先将其应用于有源噪声控制系统,并选择相应的滤波器作为慢滤波器。CFxLM算法具有收敛速度快、噪声抑制效果好的特点,且不需要参考噪声的先验知识。大量的仿真结果表明,优越的上级降噪能力的开发CFxLM为基础的主动噪声控制系统在控制脉冲噪声。
Active noise control shows a good performance on the suppression of the low-frequency noise and hence it is widely applied. However, the traditional active noise control systems are unsatisfactory in controlling impulse noise in practical situations. A method based on the convex combination of filtered-x least mean square and filtered-x minimum kernel risk-sensitive loss adaptive algorithms (CFxLM) is presented to efficiently suppress impulse noise. Due to the simplicity of the LMS algorithm, the related filter is selected as the fast filter. Because the minimum kernel risk-sensitive loss algorithm is robust to impulse noise and can offer good convergence performance, we first apply it to the active noise control system and select the corresponding filter as the slow one. The proposed CFxLM algorithm can achieve both fast convergence and good noise reduction and any prior knowledge of reference noise is unnecessary. Extensive simulations demonstrate the superior noise reduction capability of the developed CFxLM-based active noise control system in controlling impulse noise.
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