区域对流层模型在GPS高精度基线测量中的应用

Application of Regional Tropospheric Model in GPS High Precision Baseline Measurement

提出利用CORS网络的观测数据,基于PPP方法和多面函数拟合建立区域对流层模型,并利用该模型对GPS基线测量结果进行对流层延迟改正,通过实际GPS观测数据计算对比发现,该方法能够显著提高GPS基线解算精度,优于传统对流层改正模型。

The observation data of CORS network is put forward,and the model is built based on PPP method and multi surface function fitting.The model is used to correct the GPS baseline measurement.By comparing with the actual GPS data,it is found that the proposed method can significantly improve the accuracy of the baseline solution of GPS,and which has great advantages compared with the traditional troposphere correction model.