应用科学学报 ›› 2005, Vol. 23 ›› Issue (1): 45-50.

• 论文 • 上一篇    下一篇

超宽带无线通信的一种快速同步捕获方法

徐驰, 尹华锐, 徐佩霞   

  1. 中国科学技术大学电子工程与信息科学系, 安徽合肥 230027
  • 收稿日期:2003-09-25 修回日期:2004-03-15 出版日期:2005-01-31 发布日期:2005-01-31
  • 作者简介:徐驰(1978-),男,浙江杭州人,硕士生,E-mail:chxu@zte.com.cn;徐佩霞(1941-),女,浙江宁波人,教授,博导,E-mail:pxxu@ustc.edu.cn
  • 基金资助:
    中国高技术研究发展计划863计划资助项目(2003AA123220)

A Rapid Acquisition Method of UWB Wireless Communication

XU Chi, YIN Hua-rui, XU Pei-xia   

  1. Electronic Engineering and Information ScienceDepartment, University of Science and Technology of China, Hefei 230027, China
  • Received:2003-09-25 Revised:2004-03-15 Online:2005-01-31 Published:2005-01-31

摘要: 改进了利用模拟锁相环捕获UWB信号的电路模型,研究了提取信号时钟的方法,并在此基础上提出了通过二分搜索得到脉冲位置和信号帧定时的算法.采用的方法电路实现简便,仿真结果和分析表明,具有定时精确和捕获时间短的优点.

关键词: 超宽带信号, 二分搜索, 同步捕获, 模拟锁相环

Abstract: The UWB signal acquisition circuit based on the analog PLL is improved.A method to obtain the signal clock is studied, and then on the base of this circuit a binary search algorithm is proposed to obtain the pulse position and the timing of the signal frame.The circuit of this method can be realized easily.The simulation results and analysis indicate that it has the merits of precise timing and fast acquisition.It is of considerable reference value for the realization of UWB communication.

Key words: acquisition, UWB signal, analog PLL, binary search

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