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- 2016
GPS高程转换的总体最小二乘拟合推估模型
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Abstract:
在现有的关于GPS高程转换的总体最小二乘方法研究中，通常是将高程异常转换参数的计算与待求点高程异常的计算分两步进行处理，并且只考虑由已知高程异常点的平面坐标组成的系数矩阵的误差，忽略了高程异常待求点的坐标误差。针对以上问题，本文提出了GPS高程转换的总体最小二乘拟合推估模型，将计算高程异常转换参数和待求点高程异常联合处理，且考虑到所有点的点位误差，最后采用拟合推估法进行求解。实验结果表明，本文方法能够有效地提高高程转换的精度
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