摘要
为了确保动态已知点的所需精度,需要不断地更新发送给用户的卫星导航电文。本文以GPS地面监控系统为例,论述了对卫星导航电文的更新方法及其相关问题。
In order to ensure the required accuracy of the dynamic known points,it is necessary to update constantly the satellite navigation message sent to the users.GPS ground control system as an example,this paper discusses updating method of satellite navigation message and its associated issues.
出处
《数字通信世界》
2014年第8期1-7,共7页
Digital Communication World
关键词
卫星导航电文
地面监控系统
星历
satellite navigation message
ground control system
Ephemeris
