三维坐标转换的公共点选择方法
he Optimal Choice of Common Point in Coordinate Transformation
三维坐标变换中转换参数直接影响到转换点的精度，而转换参数与公共点的分布和精度有关。本文通过以转换点的拟合误差最小为目标函数求解转换参数，逐步剔除精度不高和分布不合理的公共点，使得转换参数相对于所有的转换点达到局部最优。最后通过模拟实例证明：通过该方法获取的转换参数与求得的转换点精度优于常规方法。
he transformation parameters effect on the precision of translation point in coordinate transformation. And it is related to the distribution and precision of control points. In this paper， it looks for the transformation parameters by the least fitting error of transformation points and gradually eliminates the control points of low precision and unreasonable. Ultimately， the imitative illustration proves that the transformation parameters and the precision of transformation points obtained by this method are better.
陈建平、田毅、牛琳
工程设计、工程测绘测绘学
GPS坐标转换转换参数误差
GPScoordinate transformationtransformation parameterserror
陈建平,田毅,牛琳.三维坐标转换的公共点选择方法[EB/OL].(2006-12-08)[2025-08-05].http://www.paper.edu.cn/releasepaper/content/200612-173.点此复制
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