北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2005, Vol. 28 ›› Issue (4): 10-13.doi: 10.13190/jbupt.200504.10.baizq

• 论文 • 上一篇    下一篇

基于EVA的改进型盲均衡算法

白自权,李道本   

  1. 北京邮电大学 信息工程学院, 北京 100876
  • 出版日期:2005-08-28 发布日期:2005-08-28

An Improved Blind Equalization Algorithm Based on EVA

BAI Ziquan,LI Daoben   

  1. School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2005-08-28 Published:2005-08-28

摘要:

为解决盲均衡算法中的相位旋转问题,提出了一种基于特征向量算法(EVA)的改进型盲均衡算法,并与EVA算法进行了比较. 新算法通过构造包含信道相位信息的度量解决了EVA算法的相位旋转问题. 仿真结果表明,提出的算法与EVA算法相比在收敛速度方面提高约10%,抗噪声性能提高1?dB,减小残留干扰约10%,而且并未增大运算量.

关键词: 盲均衡, 特征向量算法, 相位旋转

Abstract:

A new blind equalization algorithm based on eigenvector algorithm(EVA) was presented to solve the phase rotation problem by employing metric including phase information of the channel, and a comparison between new algorithm and EVA was also made. Simulation results show that the proposed algorithm will increase convergence rate by 10%, improve antinoise capability by 1?dB, and compress residual intersymbol interference(ISI) by 10% without increasing computational complexity with respect to EVA as well.

Key words: blind equalization, eigenvector algorithm, phase rotaTion

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