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《Engineering of Surveying and Mapping》 2011-01
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Optimum arithmetic choice model of local quasi geoid determination

LEI Wei-wei1,ZHANG Feng2(1.School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo 454000,China;2.Navy 92493,Huludao 125001,China)  
Establishing local quasi-geoid model in high precision and high resolution was the first problem which must be solved in GPS height surveying application.The model and arithmetic of BP neural networks and surface fitting were introduced in this paper;their validity and reliability were proved through experiment and calculation by MATLAB based on the GPS surveying data of Jiaozuo city.The results indicated that BP neural networks was better than other methods mentioned in the paper,and some useful conclusions were given finally.
【Fund】: 河南省重点科技攻关项目(082102350039);; 河南省教育厅自然科学研究计划项目(2009B170006)
【CateGory Index】: P228.4
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