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《Geomatics & Spatial Information Technology》 2005-06
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Least Squares Collocation in Calculating Potential Coefficient with Satellite Gravity Gradiometry Data

ZHANG Hao,CHEN Qiong(Institute of Surveying and Mapping,Information Engineering University,ZhengZhou 450052,China)  
Satellite Gravity Gradiometry is widely used in computing Earth's gravity field.In this paper the covariance function about satellite gravity gradiometry data and gravitational potenfial coefficient is educed by space disturbances potential covariance.Least Squares Collocation is used to educe the function that can directly compute gravitational potential coefficient by satellite gravity gradiometry data.The practicabilities of the function are analysed briefly.
【CateGory Index】: P223.6
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