基于S型函数的α稳态分布脉冲噪声有源控制

介绍了脉冲噪声有源噪声控制（ANC）算法，对对称“稳态（SαS）分布脉冲噪声有源控制进行了分析，提出了一种基于误差信号最小方差的Ｓ型转换的FＸＳIGMOIDLMS算法，分析了该算法的收敛条件，该算法不需要根据脉冲噪声的先验知识估测阀值和选择参数，易于实现。在Matlab编程环境下，采用FXSIGMOIDLMS算法进行仿真，验证了算法的有效性。对比了FXSIGMOIDLMs算法与对数变换FXIogLMS算法。证明了该算法具有良好的收敛性和稳定性。...

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Bibliographic Details
Published in实验室研究与探索 Vol. 33; no. 6; pp. 29 - 32
Main Author 李沛 宋晓娜 侯晓霞 张景荣
Format Journal Article
LanguageChinese
Published 北京信息科技大学机电实习中心,北京,100192 2014
Subjects
S型函数
α稳态分布脉冲噪声
有源噪声控制
有源噪声控制
α稳态分布脉冲噪声
S型函数
SαS
ANC
function
noise
active
control
impulse
Sigmoid
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ISSN1006-7167

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Summary:介绍了脉冲噪声有源噪声控制（ANC）算法，对对称“稳态（SαS）分布脉冲噪声有源控制进行了分析，提出了一种基于误差信号最小方差的Ｓ型转换的FＸＳIGMOIDLMS算法，分析了该算法的收敛条件，该算法不需要根据脉冲噪声的先验知识估测阀值和选择参数，易于实现。在Matlab编程环境下，采用FXSIGMOIDLMS算法进行仿真，验证了算法的有效性。对比了FXSIGMOIDLMs算法与对数变换FXIogLMS算法。证明了该算法具有良好的收敛性和稳定性。
Bibliography:active noise control （ANC） ; SαS impulse noise; Sigmoid function
LI Pei, SONG Xiao-na, HOU Xiao-xia, ZHANG Jing-rong （Mechanical and Electronic Practice Center, Beijing Information Science and Technology University, Beijing, China 100192）
Impulse noise is extremely harmful tO human health. Hence, great progress has been achieved in active noise control （ANC）, but most is about the noise control of Gaussian stable distribution, the non-Gaussian impulse noise control research is still in an exploratory stage. In this paper, the trends of impulse noise active noise control algorithms developed at home and abroad are analyzed, active noise control of symmetric α stable （SetS） distribution impulsive noise is studied. An algorithm based on minimizing the squared sigmoid transformation of error signal is proposed. The convergence condition of this algorithm is also analyzed. It does not need the parameter selection and thresholds estimation. Computer simulations are carried out to validate this algorithm. Simulation r
ISSN:1006-7167