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《Geomatics & Spatial Information Technology》 2017-11
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Based on Surface Fitting Accuracy of GPS Height Transformation

XIE Zhong-liang;Shaanxi Railway Institute;  
Accuracy problems for large,complex terrain areas of GPS Height Transformation paper by the basic principles of GPS elevation fitting their specific mathematical models such as flat fitting correlation plane,two surfaces,three-dimensional curve fitting model based on the research,an area in Xinjiang by GPS/leveling test data,using MATLAB software programming calculation results show that the plane and the second fitting surface fitting model fitting test area for the elevation accuracy is poor,and the three surfaces high conversion precision fitting model,to meet the subsequent measurement needs.
【Fund】: 陕西省教育厅自然科学基金资助项目(14JK1167)资助
【CateGory Index】: P228.4
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