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《Beijing Surveying and Mapping》 2018-10
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GPS Baseline Solution through Eliminate Ambiguity Based on Schreiber Law

XU Huan;WANG Aisheng;Architectural Engineering College,Suqian College;School of Geography Mapping and Urban Rural Planning,Jiangsu Normal University;  
Whether GPS static measurement or dynamic measurement,as long as the use of GPS carrier phase observations will encounter ambiguity resolution operator problems.Based on the first rule of Schreiber reduction law,by adding a few accumulation equations in the observation equation group,ambiguity items can be eliminated so that the coordinates of rover point could be calculated,ambiguity float solution further could be estimated.Firstly the Schreiber reduction rule is introduced,then an example shows that the result using the Schreiber law is the same as conventional.The example presented in detail forming method of non-difference,single difference,double difference observation and calculation process of corresponding error equation coefficients.
【CateGory Index】: P228.4
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