J4 ›› 2014, Vol. 41 ›› Issue (4): 123-129+143.doi: 10.3969/j.issn.1001-2400.2014.04.022

• 研究论文 • 上一篇    下一篇



  1. (1. 信息工程大学 信息系统工程学院,河南 郑州  450002;
    2. 西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安  710071)
  • 收稿日期:2013-04-09 出版日期:2014-08-20 发布日期:2014-09-25
  • 通讯作者: 王大磊
  • 作者简介:王大磊(1984-),男,信息工程大学博士研究生,E-mail:daleipla@163.com.
  • 基金资助:


Unconstrained criterion for blind equalization using the property of the norm

WANG Dalei1;YANG Bin1;WU Ying1;WANG Xiuxiu2   

  1. (1. Institute of Information System Engineering, Information Engineering Univ., Zhengzhou  450002, China;
    2. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China)
  • Received:2013-04-09 Online:2014-08-20 Published:2014-09-25
  • Contact: WANG Dalei



关键词: 盲均衡, 局部收敛, 向量范数, 无约束准则


A novel unconstrained criterion for blind equalization is proposed. The algorithm is based on minimization of the difference between two norms, and does not need to impose any constraint on the equalizer coefficients, which can be realized by the batch processing method and online adaptive approach. Based on the convergence proof under the noiseless condition, we show that a perfect equalization solution is achieved at every local optimum of the function, and that the amplitude of the input signal can be recovered. The validity and good performance in terms of convergence and the steady-state error of the proposed algorithm are verified through computer simulations.

Key words: blind equalization, local convergence, vector norm, unconstrained criterion


  • 911.5