两种常用的GPS高程拟合模型拟合精度研究

Research on the Altitude Precision of Two Common Models for the GPS Height Fitting

通过利用金塘大桥海中一级加密网这一成果对GPS高程异常拟合模型精度进行研究,分别用平面拟合模型和多项式曲面拟合模型解算出各点的正常高并与四等水准结果比较,得出一些有益的结论,对GPS的实际应用具有一定的指导意义。

Taking the results of Haizhong first leveling control network of Jintang Bridge as an example, this paper studied the accuracy of GPS height abnormal fitting model. It comparod between the normal height calculated by plane fitting model and polynomial surface fitting model, and the results of fourth order leveling. It got some beneficial conclusions and could guide the practical application of GPS.