J4 ›› 2014, Vol. 41 ›› Issue (1): 176-181.doi: 10.3969/j.issn.1001-2400.2014.01.031

• 研究论文 • 上一篇    下一篇



  1. (解放军信息工程大学 信息系统工程学院,河南 郑州  450002)
  • 收稿日期:2012-11-01 出版日期:2014-02-20 发布日期:2014-04-02
  • 通讯作者: 王成
  • 作者简介:王成(1988-),男,解放军信息工程大学硕士研究生,E-mail: melody198819@163.com.
  • 基金资助:


Approximated expression for the achievable residual intersymbol interference obtained by multimodulus blind equalizers

WANG Cheng;YANG Bin   

  1. (Institute of Information System Engineering, PLA Information Engineering Univ., Zhengzhou  450002, China)
  • Received:2012-11-01 Online:2014-02-20 Published:2014-04-02
  • Contact: WANG Cheng



关键词: 自适应盲均衡, 多模算法, 码间干扰表达式


A closed approximated formed expression for the achievable residual inter-symbol interference(ISI) is proposed for the adaptive equalizers that adopt the multimodulus algorithm. The expression depends on the step-size parameter, equalizer's tap length, input signal statistics, signal noise ratio and channel power. Simulation proves that the expression shows the exact relationship between residual inter-symbol interference and involved parameters. Since the channel power and signal noise ratio of the expression are measurable or can be calculated, this new approximated expression can be a useful tool for choosing the step-size and tap length for designing an equalizer, and for making direct performance comparison between blind equalizers based on distinct algorithms.

Key words: adaptive blind equalization, multimodulus algorithm, expression of inter symbol interference