北斗三期试验卫星精密定轨及对PPP定位影响的分析
发布时间：2018-12-14 17:20
【摘要】：基于北斗三期试验卫星的实测数据确定其精密轨道和钟差,结果表明三期试验卫星IGSO径向重叠弧段精度优于7.0cm,MEO优于5.3cm,与二期非GEO卫星相当。采用相应轨道和钟差产品进行静态精密单点定位结果表明,在加入北斗三期试验卫星后,监测站坐标平面精度优于1.0cm,高程精度优于2.6cm,相对于仅采用北斗二期卫星定位结果分别提高0.5cm和1.2cm,且收敛时间缩短约2h35min。
[Abstract]:Based on the measured data of Beidou Phase III test satellite, the precision orbit and clock error are determined. The results show that the accuracy of IGSO radial overlapping arc is better than 7.0 cm, and the accuracy of MEO is better than 5.3 cm, which is similar to that of the second phase non-GEO satellite. The static precision single point positioning with the corresponding orbit and clock difference products shows that the coordinate plane accuracy of the monitoring station is better than 1.0 cm and the elevation accuracy is better than 2.6 cm after the addition of Beidou Phase III test satellite. Compared with only using Beidou Phase II satellite positioning results, the 0.5cm and 1.2 cm are increased, and the convergence time is shortened by about 2 h 35 min.
【作者单位】： 武汉大学卫星导航定位技术研究中心;武汉大学地球空间信息技术协同创新中心;
【基金】：国家自然科学基金(41574030)~~
【分类号】：P228.1
，
本文编号：2379008
[Abstract]:Based on the measured data of Beidou Phase III test satellite, the precision orbit and clock error are determined. The results show that the accuracy of IGSO radial overlapping arc is better than 7.0 cm, and the accuracy of MEO is better than 5.3 cm, which is similar to that of the second phase non-GEO satellite. The static precision single point positioning with the corresponding orbit and clock difference products shows that the coordinate plane accuracy of the monitoring station is better than 1.0 cm and the elevation accuracy is better than 2.6 cm after the addition of Beidou Phase III test satellite. Compared with only using Beidou Phase II satellite positioning results, the 0.5cm and 1.2 cm are increased, and the convergence time is shortened by about 2 h 35 min.
【作者单位】： 武汉大学卫星导航定位技术研究中心;武汉大学地球空间信息技术协同创新中心;
【基金】：国家自然科学基金(41574030)~~
【分类号】：P228.1
，
本文编号：2379008
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