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| 引用本文： | 张德成,赵春梅,郑作亚.???????????????????????[J].大地测量与地球动力学,2014,34(2):142-145. |
| 作者姓名： | 张德成 赵春梅 郑作亚 |
| 作者单位： | 1）山东科技大学测绘科学与工程学院，青岛 266590 2）中国测绘科学研究院，北京 100830 |
| 基金项目： | 国家自然科学基金（41274018）；测绘地理信息公益性行业科研专项（201412001） |
| 摘 要： | ???÷?????????????ü??????????????????????????GEMT3??JGM3??EGM96??TEG4??EIGEN2??EIGEN??GL04C??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????н???????????CHAMP ??GRACE?????????????????????????????????????????????????????????????????cm????????22.47 cm????????????к??????? |
| 关 键 词： | ????GPS??????? ?????????? ????????? CHAMP GRACE |
| 收稿时间： | 2013-08-30 |
INFLUENCE OF GRAVITY FIELD MODELS ON ORBIT DETERMINATION OF LEOS |
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| Zhang Decheng,Zhao Chunmei,Zheng Zuoya.INFLUENCE OF GRAVITY FIELD MODELS ON ORBIT DETERMINATION OF LEOS[J].Journal of Geodesy and Geodynamics,2014,34(2):142-145. | |
| Authors: | Zhang Decheng Zhao Chunmei Zheng Zuoya |
| Institution: | 1）Geomatics College，Shandong University of Science and Technology，Shandong Qingdao 266590 2）Chinese Academy of Surveying and Mapping，Beijing 100830 |
| Abstract: | Simulation of onboard GPS data was completed using the simulation model of Bernese software.With the observation data obtained from simulation，The influence of different gravity field models（GEMT3、JGM3、EGM96、TEG4、EIGEN2 and EIGEN GL04C）on the accuracy of orbit determination in low orbit satellites was analized by simplified dynamic orbit determination method.The results show that the simulation data is consistent with actual situation，which can meet the need of a variety of experimental analysis.The influences of different gravity field models and degree on the accuracy of orbit determination are different，and the best result with the models generated from CHAMP’s and GRACE’s gravity data were achieved.Compared to the other gravitational field models，the accuracy difference of orbit determination with the method is in centimeter level. |
| Keywords: | onboard GPS observation simulation orbit determination of LEOs gravity field model CHAMP GRACE |
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