摘要
时频中心为用户提供可靠精准的时间同步服务,需采用高精度时间同步方法。研究了当前各类时间同步方法,分析了方法的优缺点,提出了一种以卫星共视比对为主、网络授时为辅的时间同步方案,并设计了基于卫星共视方法的时频中心,从而实现了中心间10ns级时间同步。
Reliable and precise time synchronization services for users are provided by time-frequency centers,and the high precision time synchronization methods need to be used.The time synchronization methods are researched,and the advantages and disadvantages of methods are analyzed.A time synchronization scheme is proposed with prime method of satellite common view and backup method of network time synchronization.The time-frequency centers are designed based on the satellite common view method.Therefore,the time synchronization with 10 ns level precision is realized.
出处
《指挥信息系统与技术》
2016年第1期58-62,共5页
Command Information System and Technology
关键词
卫星共视
时频中心
时间同步
satellite common view
time-frequency center
time synchronization
