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Title: Schreiber approach for GPS carrier phase ambiguity resolution
Authors: Zhu, JJ
Ding, XL 
Chen, YQ 
Keywords: Schreiber approach
Common-mode errors
Minimum norm
Issue Date: 2003
Publisher: Wuhan University
Source: Wuhan University journal of natural sciences (武汉大学学报. 自然科学版), 2003, v. 8, no. 2B, p. 492-500 How to cite?
Journal: Wuhan University journal of natural sciences (武汉大学学报. 自然科学版) 
Abstract: Differenced GPS carrier phase observations are usually used in GPS positioning to eliminate the various common GPS errors. A different approach is proposed in this paper where no differencing of the observations is required. In this method, the common GPS errors are modelled explicidy and eliminated by introducing the Schreiber method, which is used in traditional geodesy to eliminate the azimuth unknowns in observation equations. The paper first introduces the Schreiber method, and then discusses its application to the various GPS common-mode error models. It is shown that if only the real ambiguity solution is concerned, the estimate of the position parameters from the Schreiber approach is the same as that from the differencing approach. However, the variance of the ambiguity estimate from the Schreiber approach is smaller than that from the differencing approach. Numerical examples are given to show that the results are reliable.
ISSN: 1007-1202
EISSN: 1993-4998
DOI: 10.1007/BF02899811
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