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《Engineering of Surveying and Mapping》 2009-02
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Analysis on some problems about moving interpolation method in GPS-leveling

LIU Chang-jian,CHAI Hong-zhou,WU Hong-ju,MA Gao-feng(Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)  
Some problems,such as the difference between interpolation accuracy and extrapolation accuracy,accuracy estimating of translated normal height,evaluating on height class of GPS-Leveling and so on,are discussed.By use of a set of GPS-Leveling data,moving weighted average and moving polynomial function and corresponding methods with earth gravity model are compared.At the end,advice for how to choose the best moving method is given.
【CateGory Index】: P228.4
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