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《Engineering of Surveying and Mapping》 1997-02
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Adjustment in Successive Steps of Indirect Correlative Observations

Zhao Changsheng(Liaoning University of Technology, Fuxin, 123000)  
Based on the theory of adjustment of correlates, the mathematical model of the adjustment in successive steps of two groups of indirect correlative observations has been deduced, and the method used to eliminate the correlation between the two groups by reforming the second group of error equations has been put forward. In the paper,the reformed algorithm of the error equations of multigroup correlation observations has been presented. Based on the specialities of covariance matrix of triple-differential observations of GPS carrier phase, the algorithm of reforming the triple-differential error equations has been given.
【CateGory Index】: P207
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