摘要
Considering the characteristic orbit of Shenzhou IV spacecraft and the advantages and disadvantages of several types of domestic orbit measurements, a scheme of IPOD is determined, which uses GPS, SLR and USB observation data jointly plus precise ionosphere corrections to GPS observation data. IPOD system and mathematic models of OD are introduced. The results of different joint OD are analyzed using true observation data, and show that radial accuracy is better than 2 m.
作者
L Congmin1,2, GU Yidong3, LIN Baojun3 & GUO Jiong3 1. Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
3. General Establishment of Space Science and Application, Chinese Academy of Sciences, Beijing 100080, China
Correspondence should be addressed to L Congmin
