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The influence on accuracy of GPS precise point positioning caused by troposphere delay
Pages: 50-52
Year: Issue:  7
Journal: Geotechnical Investigation & Surveying

Keyword:  precise point positioningtroposphereSasstamonien modelNiell modelMarini modelEKF;
Abstract: Parameter estimation and model correcting are used to study the influence of troposphere delay on GNSS precise point positioning. In terms of parameter estimation,we use the mapping model of Niell and Marini to analyze the influence of troposphere delay. In terms of model correcting,we discuss the Sasstamonien model and the combinations of Sasstamonien model separately with Niell and Marini model. While we compare the precision and convergence of calculating coordinates of three methods,and obtain a better solution to reduce tropospheric delay error in precise point positioning.
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