刘亚, 何文涛. 组合SSR改正数实时精密单点定位性能研究[J]. 微电子学与计算机, 2021, 38(2): 14-18.
引用本文: 刘亚, 何文涛. 组合SSR改正数实时精密单点定位性能研究[J]. 微电子学与计算机, 2021, 38(2): 14-18.
LIU Ya, HE Wen-tao. Researches on real-time precise point positioning performance based on combined SSR corrections[J]. Microelectronics & Computer, 2021, 38(2): 14-18.
Citation: LIU Ya, HE Wen-tao. Researches on real-time precise point positioning performance based on combined SSR corrections[J]. Microelectronics & Computer, 2021, 38(2): 14-18.

组合SSR改正数实时精密单点定位性能研究

Researches on real-time precise point positioning performance based on combined SSR corrections

  • 摘要: 实时精密单点定位精度很大程度上取决于轨道及钟差精度,本文通过组合SSR改正数结合广播星历的方式为实时精密单点定位提供了高精度、稳定的卫星轨道及钟差.相较于单SSR改正源来说,卫星轨道及钟差改正数据缺失率分别下降0.39 %和2.14 %.最后通过对3测站7天观测数据进行精密单点定位分析,在静态定位模式下最快收敛时间在20 min以内,定位精度优于2 cm甚至是毫米级,动态模式下定位精度为分米级.

     

    Abstract: The real-time precision point positioning depends largely on the accuracy of the satellite orbit and clock bias. This paper provide a high-precision, stable satellite orbit and clock bias for real-time precise point positioning by combined SSR corrections with broadcast ephemeris. Compared with the single SSR correction source, the missing rate of satellite orbit and clock corrections decreased by 0.39% and 2.14% respectively. Through the precise point positioning analysis of 7 days observation data with 3 IGS stations, the fastest convergence time is within 20 min and the positioning accuracy is better than 2 cm or even millimeter level in static positioning mode, the positioning accuracy in dynamic mode is decimeter level.

     

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