利用训练符号进行SC-FDE系统粗定时同步算法的研究  

Study of coarse timing synchronization algorithms for SC-FDE system using training symbol

作　　者：刘然[1] 江修富[2] 郝建华[2] 

机构地区：[1]装备指挥技术学院研究生院,北京101416 [2]装备指挥技术学院光电装备系,北京101416

出　　处：《国外电子测量技术》2008年第7期25-28,共4页Foreign Electronic Measurement Technology

摘　　要：定时同步是单载波频域均衡(SC-FDF)系统所有同步内容中最关键的部分,其中的粗定时同步阶段则关系到整个定时同步能否正确建立。本文对SC-FDE系统粗定时同步算法中最常用的采用训练符号的估计算法进行了专门的研究,总结出了这一类算法的实质,概括出基于被分为4个相同部分的训练符号这一结构的3组重要的相关曲线。本文研究的结论将为SC-FDE系统粗定时同步提出新的算法和改进已有的算法提供理论基础,为系统其他部分乃至系统的整体设计提供技术参考。Timing synchronization is the most critical point of all synchronizations for single carrier frequency domain equalization （SC-FDE） system. As the first phase, coarse timing synchronization relates accurate establishment of the entire timing synchronization process or not. In this paper, as the most frequently used algorithm of coarse timing synchronization for SC-FDE system, the estimating algorithm using training symbols is especially studied. The paper summarizes the essential of this kind of algorithms, generalizes three important correlation curves of the structure which is based on making the training symbol into four identical parts. The conclusion of paper will provide theory foundation for proposing new algorithms or improving the proposed ones of coarse timing synchronization for SC-FDE system, offer technique reference for the design of other parts and even the entire system.

关 键 词：单载波频域均衡 粗定时同步 训练符号 定时测度 

分 类 号：TN929[电子电信—通信与信息系统]