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《Developments In Surveying and Mapping》 2001-01
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Study of High Precision Calculation Methods in Local GPS Leveling

GUI Qing-ming,GUO Jian-feng,SUI Li-fen,MENG Fan-yu(Institute of Surveying and Mapping, Information Engineering University of PLA, Zhengzhou,450052)  
Based on the latest research in computational mathematics, the principle and computing method of B-spline least squares are presented as a new method in response to overcome the defects which are often occur in the contemporary GPS leveling. The surveying data with GPS in southwest of China are disposed by using B-spline least squares, through the numerical results we can draw a conclusion that the precision and stability of B-spline least squares are better than other calculation methods in local GPS leveling.
【Fund】: 国家杰出青年科学基金资助项目! (4 982 5 10 7);; 国家自然科学基金项目!(4 0 0 740 0 6 );; 河南省自然科学基础研究项目!(0 0 40 5 13
【CateGory Index】: P228
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