[請益] 高程差之標準誤差計算?
求兩點間由下式計算所得高程差之標準誤差:
H = Dtanα + (1-2m/2R)D2
式中 D 為兩點間之距離 =4142±0.7m
α為垂直角=4°13’20”±5”
m為折射係數=0.065±0.015
R為地球曲率半徑=6378km
感激不盡!!
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