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《Science of Surveying and Mapping》 2012-06
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Establishing single epoch pseudorange and carrier phase double difference model based on fitting method of weights

WEN Yong-jun①,WANG Ai-sheng①,FENG Zun-de①,SONG Wei-ke②(①School of Geodesy and Geomatic,Xuzhou Normal University,Jiangsu Xuzhou 221116,China;②Jiangsu Geological Pile Engineering Company,Jiangsu Zhenjiang 212021,China)  
The study is according to the quality of the fitting method of selecting parameter weights which means that the estimations of the other parameters are unbiased as long as the restrained parameters are unbiased.In this paper,this property implied that the estimation of the fitting method of parameter weights is conditional unbiased.This property which is different from that of the classical regularizations was used in GPS fast positioning for the resolution of ambiguities.Finally the calculation results of an example validated that this measurement method was feasible.
【Fund】: 江苏省高校自然科学研究基金(09KJB420003)
【CateGory Index】: P228.4
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