摘要
针对如何获得准确、可靠的GPS单日解序列并提高GPS数据处理效率的问题,该文探讨了不同解算策略对单日解序列的影响,提出了GPS单日解批处理策略,并开发了相应的辅助工具,提高了GPS数据处理的效率且有效降低了人为误差的干扰。对所选择的165个IGS站实测数据的GAMIT解、GIPSY解与联合解进行比较分析,结果表明:联合解能有效抑制、减弱单一模型及策略解算中引入的随机误差,提高了GPS单日解坐标序列的精度,验证了GAMIT与GIPSY加权联合解的最优经验权值为1∶2.4的可靠性。
In order to obtain accurate and reliable GPS daily solution series and improve the processing efficiency of GPS data,this paper discussed the effects of different solutions on the daily solution series,put forward the GPS daily solution batch processing strategy and developed corresponding auxiliary tool which greatly improved data processing efficiency and effectively reduced interference of human error.On the basis of 165 IGS stations measured data of GAMIT solution,GIPSY solution and combined solution with comparative analysis,the results showed that the combined solution could effectively weaken the random error introduced in the single model and strategy and improve the accuracy of GPS daily solution coordinate series.At the same time,it was concluded that the optimal empirical value of GAMIT and GIPSY of the weighted combined solution was 1∶2.4.
作者
舒颖
贺小星
花向红
龚国栋
马梦然
SHU Ying;HE Xiaoxing;HUA Xianghong;GONG Guodong;MA Mengran(School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;China Railway Siyuan Survey and Design Group Co. , I.td. , Wuhan 430063, China;School of Civil Engineer and Architecture, East China J iaotong University, Nan- chang 330013, China;Collaborative Innovation Center for Geospatial Technology, Wuhan 430079, China;Research Center for Hazard Monitoring ＆ Prevention, Wuhan University, Wuhan 430079, China)
出处
《测绘科学》
CSCD
北大核心
2018年第6期7-12,共6页
Science of Surveying and Mapping
基金
江西省数字国土重点实验室开放研究基金资助项目(DLLJ201701)
国家自然科学基金项目(41674005
41374011
41374033)
国家杰出青年科学基金项目(41525014)
关键词
GPS单日解序列
GAMIT双差解算
GIPSY非差解算
加权联合解算
性能分析
GPS daily solution series
GAMIT double-difference solution
GIPSY non-difference solution
weighted combined solution
performance analysis
