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跟踪与数据中继卫星系统中的码同步技术
引用本文:颜彪,仰书耀.跟踪与数据中继卫星系统中的码同步技术[J].系统工程与电子技术,1993(6).
作者姓名:颜彪  仰书耀
作者单位:扬州工学院 (颜彪),南京工学院(仰书耀)
摘    要:本文针对跟踪与数据中继卫星系统(TDRSS)中的码同步问题,着重讨论了定长检测和序贯检测这两种捕获方法。分析了同步系统的捕获性能并给出了平均捕获时间的计算公式。基于理论分析和TDRSS正向链路同步性能的计算结果,序贯检测的捕获性要优于定长检测。

关 键 词:扩频通信  同步  ~+捕获  数据中继卫星

The Code Synchronization Technique in Tracking and Data Relay Satellite System
Yan BiaoYangzhou Institute of TechnologyYang ShuyaoNanjing Aeronautical Engineering Institute.The Code Synchronization Technique in Tracking and Data Relay Satellite System[J].System Engineering and Electronics,1993(6).
Authors:Yan BiaoYangzhou Institute of TechnologyYang ShuyaoNanjing Aeronautical Engineering Institute
Institution:Yan BiaoYangzhou Institute of TechnologyYang ShuyaoNanjing Aeronautical Engineering Institute
Abstract:Aiming at code synchronization problems in Tracking and Date Relay Satellite System (TDRSS), this paper chiefly discussed the acquisition methods of both fixed length test and sequential detection test. Synchronization system's acquisition performance was analysed and computing formula of mean acquisition time was given. Based on theoretical analysis and calculated results of the synchroniztion performance for TDRSS forward link, the acquisition performance of sequential detection test is superior to that of fixed length test.
Keywords:Spread spectrum system  Code synchronization  Fixed length test  Sequential detection test  Mean acquisition time
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