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《Science of Surveying and Mapping》 2013-04
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Further refining provincial local quasi-geoid

TANG Qiu-xiang,WU Bai-fa(First Surveying and Mapping Institute of Hunan Province,Hunan Hengyang 421001,China)  
Height anomaly residual error of common points can be calculated with a spot of new control points of height anomaly and the existent high-accuracy provincial quasi-geoid.In local area,the precision of provincial quasi-geoid could be improved significantly by the height anomaly correction for unknown points which are obtained using hardy function interpolation.It was proved by some examples that it is a simple and feasible scheme with strong practical meaning for further refining provincial quasi-geoid.
【Fund】: 湖南省国土资源厅科技项目(200804)
【CateGory Index】: P228.4
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