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《Engineering of Surveying and Mapping》 2001-04
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An Approach to the Precision of Computing the GPS Levelling Heights Using Gravity Field and Local Gravity Data

HUANG Jian-ye, XIE Jun (Tongji University, shanghai 200092, China)  
Directly computing the GPS Levelling heights using the geoid heights and GPS height infor- mation is a wholly new and charming solution. Based on the key technique of this solution, the proper- ties of the geoid heights (including long wave length-global gravity field, medium wavelength -local gravity data and short wavelength data topography), the paper discusses in detail the actualization, appli- cation scope and precision analysis of the method. On the basis of that, some applied specifications and requirements for the GPS levelling are put forward, and testing and verifying are carried out with the experiental data.
【CateGory Index】: P228.3
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1 XU Wei ming, LU Xiu ping, ZHU Mu hua;GPS Leveling Refinement with the Earth's Gravity Field Model[J];Hydrographic Surveying and Charting;2003-02
2 Lu Tieding, Lv Kaiyun, Wei Zhiming, Guan Yunlan (Surveying Department of Dong Hua Science and Engineering Institute, FuZhou JiangXi 344000);The Influence of Different Height Anomaly Datum on Normal Height Difference in GPS Height Transformation[J];Modern Surveying and Mapping;2004-03
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1 Shi Pan Sheng Zongqi(Xi'an Kesearch Institute of Surveying and Mapping);A METHOD FOR DETERMINING GRAVIMETRICGEOID WITH DEGREE-BY-DEGREE RESIDUALS OFGRAVITY ANOMALIES[J];Acta Geodaetica Et Cartographic Sinica;1993-04
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1 XU Xi 1,2,ZHU Jianjun 1 1.College of Information Physics Engineering,Central South University,Changsha 410083,China;2.Department of Civil Engineering,Hunan University,Changsha 410082,China;Relative Accuracy Estimation for Determining Regional Gravimetric Geoid[J];Acta Geodaetica et Cartographica Sinica;2009-05
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【Secondary References】
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1 LU Bin,ZHUANG Shi-dong(1.Shanghai Institute of Surveying and Mapping,Shanghai 200063,China;2.The Third Topographic Survey Crew of State Bureau of Surveying and Mapping,Harbin 150086,China);Brief Discussion on the High Precision of Centimeter-level Geoid in Shanghai[J];Geomatics & Spatial Information Technology;2006-04
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