| 基于星载GPS数据的GRACE卫星动力学法定轨 |
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| 引用本文： | 张德成,郑作亚,刘娴,李兵.基于星载GPS数据的GRACE卫星动力学法定轨[J].全球定位系统,2013(5):1-4. |
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| 作者姓名： | 张德成 郑作亚 刘娴 李兵 |
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| 作者单位： | [1]山东科技大学测绘科学与工程学院,山东青岛266590 [2]中国测绘科学研究院大地测量与地球动力研究所,北京100830 [3]北京工业大学计算机学院,北京100124 |
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| 基金项目： | 国家自然科学基金项目（批准号：41074012,41274018） |
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| 摘 要： | 利用GRACEA卫星的星载GPS观测数据，采用非差动力学低轨卫星定轨方法，解算了2012年1月11日至18日的卫星轨道，将得到的结果与GFZ发布的RSO轨道进行对比分析，并通过SLR观测数据进行轨道的校验。结果表明：定轨精度满足低轨卫星精密定轨的要求，与RSO轨道比较，在X、Y、Z方向的均方根误差的平均值分别为4．7cm、4．3cm和4．9cm；通过SLR观测数据进行校验，残差平均值为-1．6cm，均方根误差为4．7cm．
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| 关 键 词： | GRACE卫星 星载GPS观测数据 动力学 低轨卫星定轨 |
GPS-Based Dynamic Orbit Determination of GRACE Satellite |
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| ZHANG Decheng,＇,ZHENG Zuoy#,LIU Xian,LI Bing.GPS-Based Dynamic Orbit Determination of GRACE Satellite[J].Gnss World of China,2013(5):1-4. |
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| Authors: | ZHANG Decheng ＇ ZHENG Zuoy# LIU Xian LI Bing |
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| Institution: | ＇2 ( l. Geomatics College, Shandong University of Science and Technology, Qingdao Shandong 266590, China ; 2. Institute of Geodesy and Geod ynamics , Chinese Academy of Surveying and Mapping, Beijing 100830, China; 3. College of Computer Science, Beijing University of Technology, Beijing 100124,China) |
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| Abstract: | Using zero-difference satellite-borne GPS data, the orbit of GRACE A satel- lite by dynamic method with GPS observations is determined during the period from January 11 to 18, 2012. The orbit results will he compared with RSO which were released by GFZ, and be verified by SLR observation. The comparison results show that the accuracy of orbit determination can meet the requirement of LEO satellite. Compared with the RSO orbit in X, Y, Z direction, the average of RMS is 4.7 cm, 4.3 cm and 4.9 cm respectively. Calibra- ted with SLR observation, the mean of residuals is --1.6 cm, and the RMS is 4.7 cm. |
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| Keywords: | Key words： GRACE satellite spaceborne GPS data dynamic the orbit determination of LEO satellite |
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