高程精度 meaning in English
height accuracy
vertical accuracy
Examples
- Vdop - vertical dilution of precision
高程精度衰减因子 - Because the elevation data we have acquired through gps is too variable to satisfy the mapping accuracy requirement the elevation value is solved by the water lever observation in the hydrology station and datum horizon correction of sounding observation
由于gps的rtk模式测量所获取的高程精度不能满足测图精度要求，因此其高程值是通过测量水深值、结合其统一到基准面的改正数、根据相关水文部门各水位站提供的水位观测资料综合计算获得。 - Now the 2d precision of spatial points is very great , but because by usual correlation fitting method we can transfer gps ellipsoidal height into normal height of the local geoid is considered as mathematical curve plane , it is not conform the fact of mountainous districts so the precision of elevation is so small that it is not satisfied with the requirement of leveling
目前，地面点的平面位置确定精度已相当高，但高程精度始终未能达到水准测量的要求，因为将gps大地高转化为水准正常高的拟合推估方法是将局部大地水准面视为数学曲面，常常与实际情况差异较大(特别在西部山区差异更大) 。