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《Engineering of Surveying and Mapping》 2008-02
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Impact of ionosphere TEC graeient on DGPS positioning precision

XU Yu-yue,HUANG Zhang-yu,CHEN Su-juan(Department of Geomatics,Hohai University,Nanjing 210098,China)  
In view of the GPS localization survey signal path of propagation error,analyzes the influence of TEC gradient on the differential GPS(DGPS) positioning precisions.In this paper,DGPS positioning precisions in the anomaly region are investigated during the period of solar maximum 1999-2000 using data L1 carrier wave.Positioning precision of long baseline is improved obviously by wide area DGPS precision.
【CateGory Index】: P228.4
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