基于RASE的快速全程同步方法  

RASE-Based Rapid Full-Range Synchronization Method

作　　者：刘艳[1] 尹欣[1] 练羽[1] 邵谦明[1] 

机构地区：[1]复旦大学通信科学与工程系,上海200433

出　　处：《复旦学报（自然科学版）》2002年第2期134-139,共6页Journal of Fudan University：Natural Science

基　　金：上海市教委重点学科资助项目 (B990 111)

摘　　要：介绍了一种基于RASE的新的PN码同步方法 .通过分析RASE初始同步原理 ,对其结构进行了改进 .理论分析和模拟结果证明新的方法和系统不仅能完成初始同步 ,并能适应信息传送过程中的PN码同步 .模拟结果还表明 ,它具有较短的搜索时间和较好的跟踪特性 ,同时大大降低了系统中同步模块的硬件复杂度 ,是一个简单而有效的PN码同步方案 .An improved method of PN synchronization is described and analyzed based on the principle of RASE initial synchronization method. Both analytical and simulation results show that this new system not only realizes initial synchronization successfully, but also woks effectively during the normal information transmission. Besides, it has shorter search time and better track performance, as compared with the conventional sequential search methods. Hardware compplexity of synchronization system is also reduced remarkably.

关 键 词：RASE 快速全程同步方法 序列估计快速搜索 码分多址 伪随机码 移动通信 

分 类 号：TN929.533[电子电信—通信与信息系统]