区域格网电离层模型的建立和试算

A Test of Setting up Regional Grid Ionospheric Delay Model

简要叙述了格网电离层延迟模型的建立原理和数学模型,重点探讨了确定格网点处电离层延迟的权值的确定。借用江苏CORS网中的五个基准站数据建立了覆盖江苏的格网电离层模型,并用三个基准站的数据检验的模型的精度。实例表明,模型精度能达到0.2 m,Kriging插值法具有一定的优势。

The principle and Mathematical Model of establishing grid ionospheric delay model are introduced in the paper,and the weight of the ionospheric grid point is discussed primarily.The grid ionospheric delay model of JianSu is established using five CORS reference stations,and the precision of the model is examined by three CORS reference stations.The results indicate that the precision of the model is 0.2 meter and the Kriging is superiority.