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The Application of Kriging Interpolation Method in Geodetic Datum Transformation
Author(s): 
Pages: 30-32,37
Year: Issue:  4
Journal: Hydrographic Surveying and Charting

Keyword:  大地坐标系坐标转换克里金内插法格网;
Abstract: 以陕西地区2000国家大地坐标系(CGCS2000)和旧1954年北京大地坐标系转换为例,探讨了利用普通克里金内插法进行坐标转换的实现方法,比较了采用不同变异函数和空间数据窗口的转换精度.试算结果表明:大地控制网的变形与方向无关;采用适当的变异函数模型比采用简单的线性变异函数模型精度提高约40%且空间数据窗口可大幅度缩小;基于普通克里金内插方法实现陕西地区坐标转换精度可达±0.092m.
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