Estimation of GPS antenna phase center variation and its effect on precise orbit determination of LEOs

被引：0
作者：
Ma, Yang [1 ,2 ]
Ou, Jikun [1 ]
Yuan, Yunbin [1 ]
Huo, Xingliang [1 ]
Ding, Wenwu [1 ]
机构：
[1] State Key Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan
[2] University of the Chinese Academy of Sciences, Beijing
来源：
Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | 2015年 / 40卷 / 07期
基金：
中国国家自然科学基金;
关键词：
GPS; JASON-2; LEO; Phase center variation(PCV); Precise orbit determination;
D O I：
10.13203/j.whugis20130626
中图分类号：
学科分类号：
摘要：
Accurate calibration of GPS satellite transmitting antenna phase centers is very important for precise GNSS data processing, as well as for precise orbit determination of LEOs. This paper takes GPS as the starting point for a new method based on residuals from space-borne data to calibrate GPS satellite antenna PCVs. PCVs obtained from JASON-2 GPS residuals are compared with igs08_1745.atx. Results show that the agreement is about 1 mm~2 mm below 14°, and the estimated GPS PCVs values is extended up to nadir angle of precisely 17°. Several schemes were designed to consider the effects of GPS PCVs on the precise orbit determination of LEOs. Results show that errors about 2 cm can be caused by GPS PCVs. The resulting PCVs obtained the same accuracy orbits as ones using IGS PCVs, with accuracy at about 3cm in 3D, and 1cm in the radial direction. The method used in this paper can provide references for calibrating the antenna phase center variation of BEIDOU satellites.
引用
收藏
页码：894 / 900
页数：6
相关论文
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