GPS高程拟合在秦岭山区的精度探析

The accuracy of GPS fitting height in Qinling Mountains mountain area

通过在实际工作中收集的GPS观测数据及高程测量数据,对比GPS拟合高程与水准测量高程的精度,阐述了利用GPS高精度观测值加高程已知点来拟合求得待定点高程的方法及精度情况,并结合工程实际,根据GPS拟合高程在秦岭山区的实际应用和试验,对GPS拟合高程的精度进行了对比探析,从而得出两者精度相当,在某些地区可利用GPS高程拟合代替低等级水准测量的目的。

Through collected in the actual work of GPS observation data and elevation data,carries on the contrast analysis to the fitting of GPS height and leveling precision,describes the use of high precision GPS observation value plus point of known elevation to were calculated to be point elevation method and precision of the situation,and combined with the engineering practice,according to the GPS height fitting in the Qinling Mountains of practical application and testing,the accuracy of GPS height fitting were comparative analysis. In order to achieve the purpose of using GPS technology instead of the low grade level measurement.