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《Chinese Journal of Geophysics》 2005-02
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Determination of geoid by GPS/Gravity data

LI Fei 1,2 ,YUE Jian-Li 1, ZHANG Li-Ming 2,3 1 School of Geodesy and Geomatics of Wuhan University, Wuhan 430072, China 2 Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China 3 Graduate School of the Chinese Academy of Sciences, Beijing 100049, China  
As an application and test of GPS/Gravity boundary value problem, a local geoid located on N area is determined, by using 702 GPS/Gravity data for calculation and 52 GPS/Leveling for matching and checking. The accuracy analyses by matching with GPS/Leveling data and by direct correction to system difference show that the determination of local geoid computed by GPS/Gravity data and method of GPS/Gravity BVP achieved centimeter accuracy.
【Fund】: 国家自然科学基金 (4 0 3 740 0 5 );; 测绘遥感信息工程国家重点实验室开放基金(WKL0 3 0 2 0 1);; 地理空间信息工程国家测绘局重点实验室基础测绘若干重大关键技术课题 (14 60 13 0 42 42 10 )资助
【CateGory Index】: P223
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