卫星星曆可以分为广播星曆(Broadcast Ephemeris) 及精密星曆(Precise Ephemeris)兩种，广播星曆为预估的星曆，约2~4 小时更新，精度在公尺等级， 因此一般是作为导航上使用(Xu, 2003)；精密星曆则是根据地面追踪...
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Since the availability of GLONASS precise ephemeris and clock products, the combined GPS/GLONASS precise point positioning has become possible. In this thesis, the main research contents are as follows.
随着GLONASS精密星历和卫星钟差数据产品的出现,组合GPS/GLONASS精密单点定位已成为可能。
参考来源 - GPS/GLONASS组合精密单点定位理论与方法·2,447,543篇论文数据，部分数据来源于NoteExpress
The broadcast ephemeris, which is the basic of satellite navigation, must be precise and real time.
卫星导航定位的基础，要求有较高的精度和实时性。
The thesis uses the generalized extended interpolation method in precise satellite ephemeris and clock bias interpolation and GPS height fits.
本文采用广义延拓法进行卫星精密星历插值、卫星精密钟差插值和GPS高程转换。
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