A New Scheme of Decision-Feedback Blind Equalization Based on Strictly Convex Cost Function

吴建华; 刘泽民

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A New Scheme of Decision-Feedback Blind Equalization Based on Strictly Convex Cost Function

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- A New Scheme of Decision-Feedback Blind Equalization Based on Strictly Convex Cost Function
- Acta Electronica Sinica Issue 1, (1995)
- 作者机构：
  
  北京邮电大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911
- Published：1995
- 稿件说明：
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[1]吴建华,刘泽民.基于严格∪性价值函数的DF结构的盲均衡方案[J].电子学报,1995(01):21-27.

吴建华, 刘泽民. A New Scheme of Decision-Feedback Blind Equalization Based on Strictly Convex Cost Function[J]. Acta Electronica Sinica, 1995, (1).
[1]吴建华,刘泽民.基于严格∪性价值函数的DF结构的盲均衡方案[J].电子学报,1995(01):21-27. DOI：

吴建华, 刘泽民. A New Scheme of Decision-Feedback Blind Equalization Based on Strictly Convex Cost Function[J]. Acta Electronica Sinica, 1995, (1). DOI：

摘要

本文提出了一种Ｄｅｃｉｓｉｏｎ－Ｆｅｅｄｂａｃｋ．（ＤＦ）结构形式的盲均衡价值函数．证明了该价值函数对前向均衡器系数矢量Ｃ，反向均衡器系数矢量Ｃ和系统传输误差概率Ｐｎ，都是严格的∪函数．并且证明了该价值函数保证收敛到全局极小点．分析和计算机模拟结果显示，对于典型１６ＱＡＭ形式的输入信号，本文提出的方案具有低的计算复杂度和快的收敛速度。

Abstract

In this paper

a new decision feedback blind equalization cost function is introduced

which is strictly a convex function with respect to tap weight vector of forward equalizer

vector of the feedback equalizer and the error probability of system. Its global convergence is guaranteed by using gradient algorithm.For a typical channel input with 16QAM sequence

our scheme has proved to have low comoputational complexity and fast convergence rate.

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