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中国科学院大学学报 ›› 2013, Vol. 30 ›› Issue (1): 68-73.DOI: 10.7523/j.issn.1002-1175.2013.01.011

• 信息与电子科学 • 上一篇    下一篇

基于训练序列的峰值检测超宽带接收机的动态门限控制

王燕燕, 白雪飞, 黄鲁, 刘勇   

  1. 中国科学技术大学电子科学与技术系集成电路实验室, 合肥 230027
  • 收稿日期:2012-03-09 修回日期:2012-03-28 发布日期:2013-01-15
  • 通讯作者: 白雪飞
  • 基金资助:

    国家科技重大专项(2011ZX03004-002-01)资助

Dynamic threshold control for peak detection of UWB receiver based on training sequence

WANG Yan-Yan, BAI Xue-Fei, HUANG Lu, LIU Yong   

  1. Dept. Electronic Science & Technology, IC Lab, University of Sciences & Technolgy of China, Hefei 230027, China
  • Received:2012-03-09 Revised:2012-03-28 Published:2013-01-15

摘要:

针对峰值检测超宽带接收机,利用高斯信道下其系统误比特率是关于比较器门限的凸函数的特点,提出一种基于训练序列的动态门限控制算法.理论分析和数值仿真表明,动态门限控制算法不仅实现复杂度低,而且能够动态跟踪和快速逼近最优的比较器门限,以获得最小的系统误比特率.

关键词: 峰值检测, 超宽带, 凸函数, 训练序列, 动态门限控制

Abstract:

The performance of peak detection of ultra-wide band receiver is greatly affected by the threshold of the comparator. Considering that the bit error rate is a convex function of the threshold, we propose a dynamic threshold control based on training sequence. The simulation results show that the proposed practical algorithm can track and approach the optimal comparator threshold to achieve better reception performance.

Key words: peak detection, ultra-wide band, convex, training sequence, dynamic threshold control

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