匹配滤波器捕获同步的超宽带通信系统设计.pdf

4 9 10 V o l. 49 N o. 10 2009 10 T e lecommunication Eng ineering O ct. 2009 : 1001- 893X ( 2009) 10 - 0040 - 05 * 匹配滤波器捕获同步的超宽带通信系统设计 1 2 1 1 邓小芳, 罗 剑, 林基明, 周胜源 ( 1. 541004; 2. 310014) : 针对并行结构的匹配滤波器捕获电路存在同步漏捕和计算精度不高等缺点 用了串行匹 配滤波器来实现突发同步捕获 对同步捕获中涉及的三角模板互相关选相特性四积分器合成本地 模板脉冲的原理进行分析研究超宽带通信系统电路模型测试表明 通信系统在短距离收发测试过 程中接收信号能很好地解调出同步序列 效果良好 : 超宽带通信系统; 匹配滤波器; 同步; 串行结构 : TN 914 : A do i: 10. 3969 / j. issn. 1001- 893x. 2009. 10. 009 Design ofUWB Communication System Based on Capture SynchronizedMatched Filter 1 2 1 1 DEN GX iao-f ang , LUO Jian , LIN Ji- m ing , ZH OU Sheng - yuan ( 1. Schoo l o f Inform at ion and Comm un ication Eng ineering Gu ilin U niversity o f E lectron ic T echno logy Gu ilin 541004 Ch ina; 2. H u ax in Con sulting Co. L td. H angzhou 310014 Ch ina) Abstract: In view of the shortcom ings of synchronou s leakage capture and low calcu lation accuracy in the m atched f ilter capture circu its b ased on para lle l architecture a seria l m atched filter is designed to achieve the sudden synchronou s capture and the tr iangu lar cross - correlation ch aracteristics o f the election phase the principle of the four integ rators synthesizing the local pu lse temp late in synchronous cap ture are studied. T ests of the ultra- w ideb and ( UW B) comm unication system circu it mode l show that in the short- range send ing / rece iv ing process the receiv ing signal o f comm un icat ion s system can dem odu late the synchronous sequence w ell and t