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基于多个引导序列实现超宽带系统脉冲同步的方法
王勤果
0
(中国西南电子技术研究所,成都610036)
摘要:
超宽带(Ultra Wideband, UWB)通信系统的脉冲宽度很窄(纳秒量级),单个 脉冲能量非常小,若单纯在接收端做同步,则很难实现。因此收发两端联合设计,通过数据 帧 前置导频同步码是比较理想的选择,一方面能辅助系统快速捕获实现同步,另一方面为后续 均衡提供训练序列。插入导频序列后会带来一定的功率和效率损失,但从全局来看,是值得 的。
关键词:  DS-UWB  脉冲同步  时延扩展  相关
DOI:
基金项目:
A Pulse Synchronization Method Based on Multi guide Sequence for Ultra Wideband(UWB) System
WANG Qing-guo
(Southwest China Institute of Electronic Technology,Chengdu 610036,China)
Abstract:
The pulse width is very narrow and the monopulse energy is very low fo r ultra wideband(UWB) communication system, so it is difficult to realize synchr oniza tion in receiver terminal. An ideal selection is to insert guide code before data frame through codesigning receiver and transmitter. It can help syst em to realize synchronization quickly, on the other hand it also provides train seque n ce for subsequent balance. The guide sequence inserting may bring some loss in p ower and efficiency, but it is worthy for the full system.
Key words:  DS-UWB  pulse synchronization  time delay expanding  correlation