高速铁路通信系统时钟同步状态验证方法的探讨  

Research of Validation Approach for Clock Synchronization of High-speed Railway Telecommunication System

作　　者：王玉强 

机构地区：[1]中铁电化集团北京电信研究试验中心

出　　处：《铁道通信信号》2015年第1期42-44,共3页Railway Signalling & Communication

摘　　要：高速铁路通信系统由光传输子系统、电话交换子系统、调度通信系统、GSM-R移动通信系统、数据网子系统等十余个子系统组成。其中多个子系统均有时钟频率同步的要求。按照高速铁路通信系统时钟同步的需求与现状,提出切实可行的同步状态验证及同步性能的测试方法。The high-speed railroad communication system is composed of ten subsystems, including the optical transmission subsystem, the telephone exchange subsystem, the dispatching communication sub- system, the GSM-R mobile communication subsystem, the data network subsystem and so on, among which multiple sub-systems require clock frequency synchronism. According to the demand and status of clock synchronization of high-speed railroad communication systems, practical and feasible validation and test methods of synchronized performance are proposed.

关 键 词：高速铁路 GSM-R 时钟同步 测试方法 

分 类 号：U238[交通运输工程—道路与铁道工程] U285