坐标相似变换模型的探讨--《北京测绘》2008年04期

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【摘要】:常用的坐标转换模型,讨论了大地高的不确定性对应用Bursa模型进行坐标转换的影响。结合工程应用的实际情况,选择平面坐标转换模型对北京地方坐标与西安80坐标进行转换,转换精度满足实际需求。

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坐标转换 大地高误差 转换精度水利论文p H'PF\

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坐标系统间的差异主要来自于坐标系统的定义差,即原点位置、坐标轴向的定向和尺度的定义差。我国目前测图及工程规划、设计等通常采用的是北京54坐标系统、西安80坐标系统或地方坐标系统等参心坐标系。为了将不同坐标系统统一到同一坐标基准,可以采用相似变换模型、多项式拟水利论文C XpI3GBMg

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