帧同步检测技术的研究进展  

Research Advances in Frame Synchronization Detection

作　　者：胡莉[1] 张力伟 周希元[1,3] 

机构地区：[1]西安电子科技大学,陕西西安710071 [2]中国移动通信集团河北有限公司,河北石家庄050021 [3]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2009年第2期12-15,共4页Radio Engineering

摘　　要：帧同步检测技术是数据传输的关键技术之一,影响帧同步系统的性能。近年来提出了很多帧同步检测的方法,对其中一些具有代表性的帧同步检测方法做了简单介绍,如传统相关法、基于最大似然法以及基于似然比检验的方法。很多方法是在此基础上衍生出来的,因此理解这些典型帧同步检测方法是必要的。同时对这些方法进行了分析比较,指出了各自的优缺点及适用场合。提出了进一步的研究方向,如盲、快速的问题。The detection of frame synchronization sequence is one of the key techniques in data transmission, affecting the performance of the synchronization system. Some existing typical methods for frame synchronization detection are reviewed, such as traditional correlation, maximum likelihood（ML） rule and likelihood ratio test（LRT）. Since many methods are derived from them, knowledge of these typical frame synchronization detection methods is necessary. Comparison of these methods is also presented with respect to their merits and disadvantages and applicable situations. Finally, further research directions are proposed, such as blind detection and fast algorithm.

关 键 词：帧同步 帧定位 相关 最大似然 似然比检验 

分 类 号：TN911.23[电子电信—通信与信息系统]