导航定位以及授时技术中的时空关系特征及其应用  

Feature and Application of Time-Space Relationship in Satellite Navigation and Time Service

作　　者：白诚[1] 李卫[1] 杨富印[1] 

机构地区：[1]西安通信学院军事电子工程系,陕西西安710106

出　　处：《电子质量》2011年第3期13-15,共3页Electronics Quality

摘　　要：星地时间同步是导航定位系统的重要组成部分,其精度和可靠性对导航系统的定位精度和性能有重大影响。该文分析比较了常用的单向、共视、双向三种卫星授时方法的原理和特征,研究了影响授时精度的原因,介绍了高精度时间同步技术的应用。The time synchronization between a satellite and an earth station is the most importance of satellite navigation,and its precision and reliability have great influence on the precision and performance of navigation and orientation.The theory and measurement of both one-way time transfer,common-view time transfer and two-way time transfer navigation satellite timing is studied.The influence of the error sources on the timing accuracy is analyzed.Finally,the application of these methods is introduced.

关 键 词：卫星导航 卫星授时 时间同步 时间频率传递 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]