Determination of CHAMP orbit from onboard GPS double-difference phase data with dynamic method

Jinyun Guo*, Chein-way Hwang, Jianguo Hu, Jiancheng Li

*Corresponding author for this work

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

In order to determine the CHAMP's orbit, the onboard GPS data of CHAMP, the GPS data of IGS tracking stations, EOP, SGO and time data are necessary. The GPS data should be pre-processed to correct the clock error, solve the ambiguity, detect the cycle slips, determine the satellite attitude, and calculate the antenna phase center offset and correction. Then the air-ground GPS double-difference phase observations are constructed. The CHAMP's orbit is really determined with the dynamic method. Comparing with the PSO from German GFZ, the precision (RMS) in the radial direction is 0.285 7 m. For the 1-day overlapping orbit, the RMS of radial orbit difference is 0.095 8 m. Comparing the orbit end-points, the mean difference of radial orbit is 0.066 6 m.

原文English
頁(從 - 到)213-217
頁數5
期刊Geomatics and Information Science of Wuhan University
31
發行號3
出版狀態Published - 5 三月 2006

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