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《Science of Surveying and Mapping》 2008-02
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The adaptability study of Bursa’s 3-parameter and 7-parameter models

YU Cai-xia, HUANG Wen-qian,FAN Pei(Dept. of Hydrography and Cartography, Dalian Naval Academy, Dalian 116018, China)  
In Burs, compared with 3-parameter model, 7-parameter is more strictly. But it has the problems that the parameters are instable locally and hard to ensure the transformation accuracy in the area outside control points. In the paper, the accuracy, stability and the relation with the control points range of 3-parameter and 7-parameter models are verified by simulation test. The method of choosing model is obtained.
【Fund】: 国家自然科学基金资助项目(40371097)
【CateGory Index】: P228.4
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