期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

改进型CMA-DFE盲均衡算法的研究 被引量：1

RESEARCH OF MODIFIED CMA-DFE BLIND EQUALIZATION ALGORITHM
下载PDF
导出
摘要 CMA-DFE盲均衡算法在时变信道中有着广泛的应用.针对CMA-DFE盲均衡算法的缺点,提出一种改进型CMA-DFE盲均衡算法.该算法把CMA-DFE盲均衡算法中前馈滤波器和反馈滤波器更新方程中的迭代步长由原来的固定值改成可变值,从而进一步提高了CMA-DFE盲均衡算法的收敛性.仿真实验结果表明,与CMA-DFE盲均衡算法相比,改进型CMA-DFE盲均衡算法具有更好的均衡效果和收敛性能. CMA-DFE blind equalization algorithm is widely used in time-varying channel. According to the disadvantages of CMA-DFE blind equalization algorithm, a modified CMADFE blind equalization algorithm is proposed. The proposed algorithm changes the iteration step length in renewal equation of feedforward filter and feedback filter in CMA-DFE blind equalization algorithm from fixed value to variable value,which further improves the conver- gence of CMA-DFE blind equalization algorithm. The simulation results show that the equalization effect and convergence performance of modified CMA-DFE blind equalization algorithm are better than those of CMA-DFE blind equalization algorithm.
作者 张天瑜
机构地区 无锡市广播电视大学机电工程系
出处 《陕西科技大学学报（自然科学版）》 2009年第4期112-116,共5页 Journal of Shaanxi University of Science & Technology
关键词 盲均衡 码间干扰 随机梯度算法 常数模算法 判决反馈均衡 blind equalization inter symbol interference stochastic gradient algorithm constant modulus algorithm decision feedback equalization
分类号 TN911 [电子电信—通信与信息系统]
  • 相关文献

参考文献12

  • 1Lin S S, Wu W R. Interpolated decision feedback equalization for long intersymbol interference channels[J]. Signal Processing, 2007,87(11) :2 673-2 685.
  • 2Ozden M T,Kayran A H. Adaptive multichannel decision feedback equalization for volterra type nonlinear communication channels [J]. AEU-International Journal of Electronics and Communications,2008,62(6):430-437.
  • 3Mahmood K, Zidouri A, Zerguine A. Performance analysis of a RLS-based MLP-DFE in time-invariant and time-varying channels [J]. Digital Signal Processing, 2008,18(3) : 307-320.
  • 4Icart S,Comon P,Rota L. Blind paraunitary equalization[J]. Signal Processing,2009,89(3) :283-290.
  • 5Lee Y,Wu W R. Adaptive channel aided decision feedback equalisation for SISO and MIMO systems[J]. IEE Proceedings of Communications, 2006,153(5) : 657-663.
  • 6Zaouche A,Dayoub I, Rouvaen J M. Baud-spaced constant modulus blind equalization via hybrid genetic algorithm and generalized pattern search optimization[J]. AEU-International Journal of Electronics and Communications, 2008,62(2) :122-131.
  • 7Djebbar A B, Abed-Meraim K, Djebbari A. Blind channel equalization and carrier frequency offset estimation tor MC-C3DMA systems using guard interval redufidancy and excess codes[J]. AEU-Intemational Journal of Electronics and Communications, 2009,63 (3):220-225.
  • 8Kibangou A Y, Favier G. Blind equalization of nonlinear channels using a tensor decomposition with code/space/time diversities[J]. Signal Processing, 2009,89 (2): 133-143.
  • 9Banovic K, Abdel-Raheem E, Khalid M A S. Computationally efficient methods for blind decision feedback equalization of QAM signals[J]. AEU-International Journal of Electronics and Communications,2008,62(5) :374-385.
  • 10Xiang Y. Blind source separation based on constant modulus criterion and signal mutual information[J]. Computers & Electrical Engineering, 2008,34 (5) : 416-422.

同被引文献5

引证文献1

二级引证文献2

陕西科技大学学报（自然科学版）
2009年 第4期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部