基于sigmoid函数的Volterra自适应有源噪声对消器

张家树; 肖先赐

基于sigmoid函数的Volterra自适应有源噪声对消器

张家树^{①②;肖先赐},
肖先赐

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出版历程
- 收稿日期: 2000-05-28
- 修回日期: 2001-07-05
- 刊出日期: 2002-04-19

Sigmoid-based Volterra adaptive active noise cancellation filters

Zhang Jiashu^{①②;肖先赐},
Xiao Xianci

摘要

摘要: 该文介绍了一种新颖的非线性自适应有源噪声对消器基于sigmoid函数的Volterra自适应有源噪声对消器,并采用输入信号和瞬时误差归一化的LMS自适应算法调整其系数。这种基于sigmoid函数的Volterra自适应有源噪声对消器具有参数少和便于实现的模快化结构等优点。仿真结果表明:这种基于sigmoid函数的Volterra自适应有源噪声对消系统具有良好的抗噪声性能。
- Volterra滤波器; 基于Sigmoid函数的Volterra自适应滤波器; 有源噪声对消
Abstract: A novel class of nonlinear adaptive active noise cancellation filter-sigmoid-based Volterra adaptive active noise cancellation filter is introduced. The normalized data and instantaneous error LMS algorithm is modified to update the coefficients of this sigmoid-based Volterra filter. Because the sigmoid-based Volterra adaptive filter, equivalent to second-order Volterra filter, is of the reduced coefficients and modularity, it is applied for adaptive active noise cancellation. Experimental results of adaptive active noise cancellation show that the proposed sigmoid-based Volterra adaptive active noise cancellation filter not only has good anti-noise performance, but also can be easily implemented.

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参考文献(1)

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