基于系统间交叉验证的海上精密单点定位质量检核方法  

Quality Check Method for Marine Precise Point Positioning Based on Cross Validation between Systems

作　　者：关小果 柴洪洲[2] 韩世静 钱跃磊[1] GUAN Xiaoguo;CHAI Hongzhou;HAN Shijing;QIAN Yuelei(College of Urban and Environmental Sciences,Xuchang University,Xuchang 461000,China;School of Surveying and Mapping,Information Engineering University,Zhengzhou 450001,China;School of Natural Resources and Surveying,Nanning Normal University,Nanning 530001,China)

机构地区：[1]许昌学院城市与环境学院,河南省许昌市461000 [2]信息工程大学地理空间信息学院,郑州市450001 [3]南宁师范大学自然资源与测绘学院,南宁市530001

出　　处：《大地测量与地球动力学》2021年第12期1235-1240,共6页Journal of Geodesy and Geodynamics

基　　金：河南省重点研发与推广专项(科技攻关)(212102310029,202102310015);许昌学院科研项目(2021ZD009);许昌学院教育教学研究与实践项目(XCU2021-YB-024)。

摘　　要：基于MGEX(multi-GNSS experiment)测站实测数据,采用系统间交叉验证方法检核海上BDS/GNSS精密单点定位质量。分析不同系统组合的精密单点定位精度和收敛速度,结果表明,相对于单BDS,不同系统组合可有效提高精密单点定位的收敛速度和定位精度;组合系统的数目越多,相应的精密单点定位精度越高,收敛速度越快。同时,在静态、仿动态、海上动态不同定位模式下,采用系统间交叉验证方法检核精密单点定位的精度和可靠性。Based on the measured data of MGEX stations,we use the cross validation method between systems to check the quality of Beidou/GNSS precise point positioning(PPP).We analyze the accuracy and convergence speed performance of multi-GNSS PPP with different combinations.The results show that compared with single BDS,multi-GNSS can accelerate the convergence speed as well as the accuracy of PPP.The greater the system combinations number,the higher the positioning accuracy and the faster the convergence speed of PPP.Then,we use the cross validation method between systems to check the accuracy and reliability of PPP results in static,pseudo-dynamic and marine dynamic positioning modes.

关 键 词：BDS 精密单点定位 系统间交叉验证 质量检核 

分 类 号：P228[天文地球—大地测量学与测量工程]