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《Site Investigation Science and Technology》 2007-01
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Compensation of Least Square Collocation in GPS Elevation Fitting Model Errors

Li Chong Ji Lingyun Zhang Dongju(School of Geological Engineering and Surveying Engineering,Chang′an University)  
The model errors exist inevitably in conventional least square fitting model of elevation abnormility.Considering the indeterminacy of the model errors,we may solute the problem by taking the errors as signal with using least square collocation.The model and detailed calculation are given.The paper used this method to solute the problem on basis of GPS level data in a survey area,and obtained satisfying results.Finally,prior errors to the model precise are analyzed with examples.
【CateGory Index】: P228.4
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