Research of blind equalization algorithm based on third second order normalized cumulant in QAM system

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (29): 27-29.

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Research of blind equalization algorithm based on third second order normalized cumulant in QAM system

ZHANG Li-yi^1,2,LI Qiang²,TENG Jian-fu²

1.College of Information Engineering,Tianjin University of Commerce,Tianjin 300134,China
2.School of Electronics Information Engineering,Tianjin University,Tianjin 300072,China

Received:1900-01-01 Revised:1900-01-01 Online:2007-10-11 Published:2007-10-11
Contact: ZHANG Li-yi

复数系统中三、二阶归一化累积量盲均衡算法的研究

张立毅^1,2,李锵²,滕建辅²

1.天津商业大学信息工程学院,天津 300134
2.天津大学电子信息工程学院,天津 300072

通讯作者: 张立毅

Abstract

Abstract: A novel third-second order normalized cumulant blind equalization algorithm in QAM system based on Symmetric-to-Asymmetric Transformation（SAT） has been brought forward.The defect has been overcome in this paper,which channel equalization can be not directly applied because the third order cumulant of symmetrically distributed signal is zero.Simulation results show that the proposed algorithm has better performances with low complexity,fast convergence and small steady residual error than the same algorithm．

Key words: blind equalization, third-second order, normalized cumulant, Symmetric-to-Asymmetric Transformation（SAT）, QAM

摘要： 采用对称—反对称变换原理,提出了一种基于复数系统三、二阶归一化累积量盲均衡算法,克服了对称信号三阶累积量为零而无法进行信道均衡的缺点。计算机仿真表明,该算法实现简单,收敛效果好,稳态剩余误差小,其性能优于已有的一些同类算法。

关键词: 盲均衡, 三-二阶, 归一化累积量, 对称—反对称变换, QAM

ZHANG Li-yi^1,2,LI Qiang²,TENG Jian-fu². Research of blind equalization algorithm based on third second order normalized cumulant in QAM system[J]. Computer Engineering and Applications, 2007, 43(29): 27-29.

张立毅^1,2,李锵²,滕建辅². 复数系统中三、二阶归一化累积量盲均衡算法的研究[J]. 计算机工程与应用, 2007, 43(29): 27-29.

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Research of blind equalization algorithm based on third second order normalized cumulant in QAM system

复数系统中三、二阶归一化累积量盲均衡算法的研究

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