预编码单载波系统中的简单半盲均衡方法

doi:10.13190/jbupt.2011s1.127.jumy

北京邮电大学学报 ›› 2011, Vol. 34 ›› Issue (s1): 127-131.doi: 10.13190/jbupt.2011s1.127.jumy

• 研究报告 • 上一篇

预编码单载波系统中的简单半盲均衡方法

河海大学计算机与信息学院, 南京 210098

出版日期:2011-10-28 发布日期:2011-10-28
作者简介:居美艳（1979-），女，讲师，硕士生导师，E-mail：jmy@hhu.edu.cn
基金资助:
中央高校基本科研业务费专项资金项目(2010B06614); 江苏省自然科学基金项目(BK2008358)

A Simple SemiBlind Equalization Method for Precoding Single Carrier Systems

Online:2011-10-28 Published:2011-10-28
Supported by:

摘要/Abstract

摘要：

盲均衡具有有效数据传输速率高的优点，但同时又存在计算复杂、运算量大以及收敛速度慢等问题.对此，针对预编码单载波频域均衡系统，提出了一种基于Bussgang算法的半盲均衡算法. 该算法通过灵活设计误差信号从而使得类似的Bussgang算法得以应用，同时通过初值的选取加快了算法的收敛速度. 此算法不需要复杂的矩阵求逆运算，实现简单. 仿真结果表明该算法的性能优于现有的算法.

关键词: 单载波, 半盲均衡, 频域均衡, 预编码

Abstract:

Blind equalization is of advantage of high efficient data transmission rate and disadvantages such as complicated algorithms, complicated computations and slow convergences. Considering precoding single carrier systems with frequency domain equalization, a semiblind equalization method based on Bussgang algorithm is proposed. The error signal of this method is skillfully designed so that the similar Bussgang algorithm can be used. At the same time, its convergence speed becomes faster due to selecting initialization. The method can be implemented easily because it does not need complex inversion computation compared with the existing related method. Simulation shows that the proposed method outperforms the existing algorithm.

Key words: single carrier, semiblind equalization, frequency domain equalization, precoding

中图分类号:

TN911.5

居美艳,李岳衡,李黎. 预编码单载波系统中的简单半盲均衡方法[J]. 北京邮电大学学报, 2011, 34(s1): 127-131.

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预编码单载波系统中的简单半盲均衡方法

A Simple SemiBlind Equalization Method for Precoding Single Carrier Systems

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