摘要
讨论了超宽带(UWB)脉冲无线通信系统中的同步问题,总结了目前的研究现状。首先讨论了UWB脉冲形状和信道模型,然后从信号处理角度分析了UWB同步问题,比较性地研究了基于检测理论和估计理论的UWB同步技术。分析了目前基于这两种理论的主要同步方法、特点和性能,并指出了今后UWB脉冲无线通信系统中同步面临的主要问题和研究方向,对于UWB同步技术的研究有一定的指导意义。
The synchronization technique in IR-UWB （Impulse Radio Ultra Wideband） wireless communication system is discussed in this paper, and the research situation at present is presented. The pulse shape and channel model are discussed, then from the point of view of signal processing, the two different synchronization techniques： detection-based approach and estimation-based approach are compared. And a survey on main current synchronization techniques based on the two different theories is presented, focusing on the approach, characteristic and performance of several synchronization methods. The main problem in the IR-UWB synchronization technique and the potential research direction in the future are pointed.
出处
《南京邮电大学学报（自然科学版）》
2006年第2期51-54,共4页
Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
关键词
超宽带
同步
检测
估计
UWB
Synchronization
Detection
Estimation
