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《Science of Surveying and Mapping》 2005-03
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Fast carrier phase integer ambiguity resolution for differential GPS

ZHU Zhi-yu ①②,LIU Wei-ting①,ZHANG Bing ①②(①Dept.of Electronics and Information,Jiangsu University of Science and Technology,Zhenjiang Jiangsu 212003,China;②College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjin 210016)  
A fast method of integer ambiguity resolution is proposed in this paper,in which all the GPS measurements are divided into main set and subordination set.The phase measurements in the main set is applied to reduce search space,while that in subordination set to validate candidate value of integer ambiguity resolution.Adopting constraint condition that length of base line is known,search space is reduced,as a result,the speed to solve integer ambiguity resolution is improved,at last,Cholesky Decompose is employed to enhance solution efficiency.
【CateGory Index】: P228.4
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