Short-term Stability of GNSS Satellite Clocks and its Effects on Precise Point Positioning
Short-term Stability of GNSS Satellite Clocks and its Effects on Precise Point Positioning
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发表时间：
2008-09
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通讯作者：
A. Hesselbarth;L. Wanninger
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作者：
A. Hesselbarth;L. Wanninger
精密单点定位（PPP）要求所有使用的卫星都有精确的轨道和时钟校正。遗憾的是，只有国际GNSS服务（IGS）的两个分析中心（AC）提供GLONASS时钟校正。这两种产品都包含以5分钟为间隔的表格式时钟值，这对于许多运动学PPP应用来说不够密集。因此，需要对卫星时钟校正进行数学插值。
Precise Point Positioning (PPP) requires the availability of precise orbit and clock corrections for all satellites used. Unfortunately, only two Analysis Centers (AC) of the International GNSS Service (IGS) make GLONASS clock corrections available. Both products consist of tabular clock values with 5 minute intervals, which is not dense enough for many kinematic PPP applications. Thus, mathematical interpolation of the satellite clock corrections is required.