摘要
结合实际数据,对GPS/GLONASS集成的CORS网中利用参考站间的大气延迟内插流动站处的误差改正量的各种内插算法进行比较。比较结果认为:双差电离层延迟改正采用克里金插值模型(KRG)方法精度最高,精度优于3cm;而对流层延迟误差改正中,GPS采用最小二乘配置模型(LSC)插值方法效果最好,精度一般可达3cm,而GLONASS则应采用3阶趋势面模型(LSM3)进行内插,精度为4cm。
Combined with the actual data,the comparision of various error interpolation models are described for Rover station using atmospheric delay corrections by reference stations based on GPS/GLONASS Integrated CORS Network.The results show that if DD ionospheric delay corrections use Ordinary Kriging Model（KRG）interpolation method with the highest accuracy,the accuracy is better than 3cm;and if the tropospheric delay error correction is being used,GPS with Least Squares Collocation Model（LSC）interpolation,the general accuracy can reach 3cm,and if the Three-Order Surface model（LSM3）is used in GLONASS,the accuracy can reach 4cm.
出处
《测绘工程》
CSCD
2016年第7期1-6,共6页
Engineering of Surveying and Mapping
关键词
CORS
大气延迟
插值模型
CORS
atmospheric delay
interpolation model
