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 (5): 74-76.doi: 10.13190/jbupt.200505.74.378

• 论文 • 上一篇    下一篇

一种降低UWB系统符号间干扰的方法

阙蔚1,张新跃2,张平1,沈树群2   

  1. 1北京邮电大学 电信工程学院, 北京 100876;2北京邮电大学 电子工程学院, 北京 100876
  • 出版日期:2005-10-28 发布日期:2005-10-28

A Novel Scheme to Counteract Inter Symbol Interference of UltraWideband Communication System

QUE Wei1,ZHANG Xinyue2,ZHANG Ping1,SHEN Shuqun2   

  1. 1 School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China; 2 School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2005-10-28 Published:2005-10-28

摘要:

借鉴单载波频域均衡(SCFDE)系统插入循环前缀消除符号间干扰的思想,提出了一种用于超宽带系统的频域均衡结构,给出了基于最小均方误差(MMSE)估计准则的最佳频域均衡算法. 仿真结果表明,此方法对系统误码率性能有较大改善.

关键词: 超宽带, 最小均方误差估计, 快速傅里叶变换

Abstract:

Based on the singlecarrier frequency domain equalizer(SCFDE)approach providing immunity of intersymbol interference (ISI), a novel frequency domain balanced structure for ultrawideband system was proposed. The optimal frequency domain balance algorithm based on minimum meansquare error (MMSE) estimation wais introduced. The simulation result shows that the bit error ratio can be decreased greatly.

Key words: ultrawideband, minimum meansquare error, fast Fourier transform

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