脉冲噪声的非线性变换有源控制算法研究  

Research active control algorithm based on nonlinear transform of impulsive noise

作　　者：李沛[1] 张景荣[1] 

机构地区：[1]北京信息科技大学机电实习中心,北京100192

出　　处：《实验技术与管理》2016年第3期39-42,47,共5页Experimental Technology and Management

基　　金：北京市教育委员会科技计划面上项目(KM201511232023)

摘　　要：α稳定分布模型是描述脉冲噪声的最佳理论工具,研究了对称α稳定分布脉冲噪声的有源控制;对基于非线性变换的脉冲噪声有源控制算法进行了推导与分析,并对FXSigmod算法进行了计算机仿真,用实验证实算法消除噪声的效果。该算法无需估测阈值,容易实现,连续更新性能好,可快速有效抑制脉冲噪声。The alpha stable distribution provides a strong theoretical tool for the analysis of the non-Gaussian impulsive noise signals.Active control of symmetricαstable distribution impulsive noise is studied.Impulsive noise algorithm based on nonlinear transform is derived and analyzed,the computer simulation was carried out to validate FxSigmod algorithm.Simulation results prove the effectiveness of the algorithm.It does not need the parameter selection and thresholds estimation.it is easy to implement.Continuous update performance of algorithm is good,which can restrain impulsive noise quickly and efficiently.

关 键 词：脉冲噪声 非线性变换 有源控制 Α稳定分布 

分 类 号：TB535[理学—物理]