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

LIU Ya; HE Wen-tao

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

更新时间：2026-09-04

- Researches on real-time precise point positioning performance based on combined SSR corrections
- Vol. 38, Issue 2, Pages: 14-18(2021)
- 作者机构：
  
  1. 中国科学院机构微电子研究所,浙江,杭州,310053
  2. 中国科学院大学机构,北京,101408
  3. 杭州中科微电子有限公司,北京,100029
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2021
- 稿件说明：
移动端阅览
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]. 2021, 38(2): 14-18.
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. DOI：

LIU Ya, HE Wen-tao. Researches on real-time precise point positioning performance based on combined SSR corrections[J]. 2021, 38(2): 14-18. DOI：

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.

关键词

Keywords

references

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WANG L, LI Z S, GE M R, et al. Validation and assessment of multi-GNSS real-time precise point positioning in simulated kinematic mode using IGS real-time service[J]. Remote Sensing, 2018, 10(2): 337. DOI:10.3390/rs10020 337.

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