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基于误差信号峰度的时变步长恒模盲均衡算法
引用本文:张立毅,刘婷,王华奎,滕建辅.基于误差信号峰度的时变步长恒模盲均衡算法[J].计算机工程与应用,2006,42(6):144-145,185.
作者姓名:张立毅  刘婷  王华奎  滕建辅
作者单位:1. 天津商学院信息工程学院,天津,300134;太原理工大学信息工程学院,太原,030024
2. 天津商学院信息工程学院,天津,300134
3. 太原理工大学信息工程学院,太原,030024
摘    要:论文针对固定步长恒模盲均衡算法的缺陷,提出了一种自适应时变步长恒模盲均衡算法,采用误差信号的峰度作为步长控制因子。经计算机仿真与理论分析表明,该算法与传统恒模算法相比,收敛速度加快,稳态剩余误差减小。

关 键 词:误差信号峰度  时变步长  盲均衡  CMA
文章编号:1002-8331-(2006)06-0144-02
收稿时间:2005-07
修稿时间:2005-07

Variable Step-size Constant Modulus Blind Equalization Algorithm Based on the Kurtosis of Error Sequence
Zhang Liyi,Liu Ting,Wang Huakui,Teng Jianfu.Variable Step-size Constant Modulus Blind Equalization Algorithm Based on the Kurtosis of Error Sequence[J].Computer Engineering and Applications,2006,42(6):144-145,185.
Authors:Zhang Liyi  Liu Ting  Wang Huakui  Teng Jianfu
Affiliation:1.School of Information Engineering,Tianjin University of Commerce,Tianjin 300134;2.College of Information Engineering,Taiyuan University of Technology,Taiyuan 030024
Abstract:In order to overcome the shortcoming of fixed step-size constant module(CM) blind equalization algorithm, this paper proposes an new adaptive variable step-size constant module blind equalization algorithm,in which we use the kurtosis of error signal as step-size control factor.Computer simulations and theory analyses show that the proposed algorithm can speed up convergence rate and decrease state residual error compared with conventional CMA blind equalization algorithm.
Keywords:CMA
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