BDS非差非组合精密单点定位研究
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摘要
针对BDS目前可提供服务的在轨卫星已经超过18颗,因此,研究非差非组合模型在BDS PPP中的应用具有重要意义。在简明阐述观测模型和参数估计基本理论的基础上,重点分析了BDS非差非组合PPP在静态、后处理动态和模拟实时动态下的定位精度。实验选取亚太区域4个MGEX跟踪站2016年第206—208天的BDS/GPS观测数据。研究表明:BDS静态E、N、U方向定位精度分别为1.8 cm、0.7 cm、3.1 cm; BDS模拟实时动态E、N、U方向定位精度分别为5.3 cm、3.9 cm、12.1 cm; BDS后处理动态与模拟实时动态E、N、U定位精度相当。
There have been more than 18 satellites that BDS can currently serve on the orbit,so it is of great significance to study the application of un-differential and Un-combined model in BDS PPP. Based on the basic theory of briefly elaborating the observation model and parameter estimation,emphatically analyzing the positioning accuracy of BDS PPP with un-differential and un-combined observations in static,post processing dynamic and simulate real-time dynamic. The experiment selected 4 MGEX tracking stations in the Asia Pacific region from the 206 th to the 208 th day of BDS/GPS observation data in 2016. The average value of GPS static PPP single day has been used in the experiment as the reference value. The results show that BDS static positioning accuracy is 1.8 cm,0.7 cm,3.1 cm in the E,N,U directions,BDS real-time dynamic accuracy is 5.3 cm,3.9 cm,12.1 cm in the E,N,U directions,BDS post processing dynamic accuracy is equal to BDS real-time dynamic accuracy.
There have been more than 18 satellites that BDS can currently serve on the orbit,so it is of great significance to study the application of un-differential and Un-combined model in BDS PPP. Based on the basic theory of briefly elaborating the observation model and parameter estimation,emphatically analyzing the positioning accuracy of BDS PPP with un-differential and un-combined observations in static,post processing dynamic and simulate real-time dynamic. The experiment selected 4 MGEX tracking stations in the Asia Pacific region from the 206 th to the 208 th day of BDS/GPS observation data in 2016. The average value of GPS static PPP single day has been used in the experiment as the reference value. The results show that BDS static positioning accuracy is 1.8 cm,0.7 cm,3.1 cm in the E,N,U directions,BDS real-time dynamic accuracy is 5.3 cm,3.9 cm,12.1 cm in the E,N,U directions,BDS post processing dynamic accuracy is equal to BDS real-time dynamic accuracy.
引文
[1]KOUBA J,HEROUX P.GPS precise point positioning using IGS orbit products[J].GPS Solution,2001,5(2):12-28.
[2]GENG J.Rapid integer ambiguity resolutionin GPS precise point positioning[D].Notinghanm:University of Notinghanm,2011.
[3]辜声峰.多频GNSS非差非组合精密数据处理[D].武汉:武汉大学,2013.
[4]杨徉.基于非差非组合模型的大气误差提取及区域建模算法研究[D].南京:东南大学,2016.
[5]闫伟,袁运斌,欧吉坤,等.非组合精密单点定位算法精密授时的可行性研究[J].武汉大学学报:信息科学版,2011,36(6):648-651.
[6]张宝成.GNSS非差非组合精密单点定位的理论方法与应用研究[D].武汉:中国科学院测量与地球物理研究所,2012.
[7]李博峰,葛海波,沈云中.无电离层组合、Uofc和非组合精密单点定位观测模型比较[J].测绘学报,2015,44(7):734-740.
[8]张小红,左翔,李盼.非组合与组合PPP模型比较及定位性能分析[J].武汉大学学报:信息科学版,2013,38(5):561-565.
[9]章红平,高周正,牛小骥,等.GPS非差非组合精密单点定位算法研究[J].武汉大学学报:信息科学版,2013,38(12):1 396-1 399.
[10]付婧雯.北斗导航系统精密单点定位技术研究[D].北京:北京理工大学,2016.
[11]张小红,左盼,李盼等.BDS/GPS精密单点定位收敛时间与定位精度的比较[J].测绘学报,2015,44(3):250-256.
[12]马瑞,施闯.基于北斗卫星导航系统的精密单点定位研究[J].导航定位学报,2013,1(2):7-10.
[2]GENG J.Rapid integer ambiguity resolutionin GPS precise point positioning[D].Notinghanm:University of Notinghanm,2011.
[3]辜声峰.多频GNSS非差非组合精密数据处理[D].武汉:武汉大学,2013.
[4]杨徉.基于非差非组合模型的大气误差提取及区域建模算法研究[D].南京:东南大学,2016.
[5]闫伟,袁运斌,欧吉坤,等.非组合精密单点定位算法精密授时的可行性研究[J].武汉大学学报:信息科学版,2011,36(6):648-651.
[6]张宝成.GNSS非差非组合精密单点定位的理论方法与应用研究[D].武汉:中国科学院测量与地球物理研究所,2012.
[7]李博峰,葛海波,沈云中.无电离层组合、Uofc和非组合精密单点定位观测模型比较[J].测绘学报,2015,44(7):734-740.
[8]张小红,左翔,李盼.非组合与组合PPP模型比较及定位性能分析[J].武汉大学学报:信息科学版,2013,38(5):561-565.
[9]章红平,高周正,牛小骥,等.GPS非差非组合精密单点定位算法研究[J].武汉大学学报:信息科学版,2013,38(12):1 396-1 399.
[10]付婧雯.北斗导航系统精密单点定位技术研究[D].北京:北京理工大学,2016.
[11]张小红,左盼,李盼等.BDS/GPS精密单点定位收敛时间与定位精度的比较[J].测绘学报,2015,44(3):250-256.
[12]马瑞,施闯.基于北斗卫星导航系统的精密单点定位研究[J].导航定位学报,2013,1(2):7-10.