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提出并分析了 EDM三角高程测量进行高耸建筑物高程放样时 ,大气折光是影响精度的关键因素。推导出大气折光平均折射系数的计算公式。给出了进行大气折光改正的实际操作步骤
It is proposed and analyzed that atmospheric refraction is a key factor influencing the accuracy when EDM triangulation is used for high-rise buildings. Derived the calculation formula of atmospheric refractive index average refractive index. Given the actual steps for atmospheric refraction correction