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《Journal of Geodesy and Geodynamics》 2014-05
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STUDY ON INFLUENCE OF OBSERVATION ERROR ON MISSION OF NEW GENERATION OF GRAVITY SATELLITES

Zhao Qian;Xu Xinyu;Peng Lifeng;Institute of Earthquake Science,CEA;GNSS Reseach Center,Wuhan University;School of Geodesy and Geomatics,Wuhan University;  
Based on the dynamic method,observation error of gravity satellite and its influence on gravity fieldsuch were fully analyzed through simulation experiments.The results show that the contribution of orbital determination precision on gravity field is in low-order,while contribution of inter-satellite ranging precision on the gravity field is in middle-to-high order.When orbital precision keeps at 2-3 cm level,resolution accuracy of gravity field depends on inter-satellite ranging data,that is,the higher precision of inter-satellite ranging data is,the higher inverse precision of gravity field is.However,orbital determination precision impacts low order part of gravity field when inter-satellite ranging-rate reaches nano-meter level with invariable orbital error.Therefore,improving orbit determination precision might be one of the key issues in new generation gravity field satellite mission.
【Fund】: 中国地震局地震预测研究所基本科研业务费项目(2013IES0203 2013IES010102)
【CateGory Index】: P223
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 ZHAO Qian1,2,JIANG Weiping2,XU Xinyu3,ZOU Xiancai3,PENG Lifeng2 1.Chinese Academy of Surveying and Mapping,Beijing 100830,China;2.GNSS Research Center,Wuhan University,Wuhan 430079,China;3.School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;Research on the Design of LEO Repetition Period and Its Influence on Gravity Field Recovery[J];Acta Geodaetica et Cartographica Sinica;2013-02
【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 JIANG Weiping;ZHAO Wei;ZHAO Qian;XU Xinyu;ZOU Xiancai;GNSS Research Center,Wuhan University;School of Geodesy and Geomatics,Wuhan University;Institute of Earthquake Science China Earthquake Administration;;Satellite Formation for a New Gravity Field Exploration Mission[J];Acta Geodaetica et Cartographica Sinica;2014-02
【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 ZHAN Jingang1,2,WANG Yong1,HAO Xiaoguang11.Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Improved Method for Removal of Correlated Errors in GRACE Data[J];Acta Geodaetica et Cartographica Sinica;2011-04
2 Zhao Qian1),Jiang Weiping1),Xu Xinyu2) and Guo Jing1)1)GNSS Reseach Center,Wuhan University,Wuhan 4300792)School of Geodesy and Geomatics,Wuhan University,Wuhan 430079;ANALYSIS OF INFLUENCE OF FREQUENCY ALIASING EFFECTS ON GRACE GRAVITY SOLUTION[J];Journal of Geodesy and Geodynamics;2011-04
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