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铁路导航精密单点定位方法改进及性能验证 认领

Improved Navigation Application Precise Point Positioning Method in Railways
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摘要 在铁路导航应用中,通常采用差分GNSS定位的方式,需要在铁路沿线设置差分参考站,从而提高定位精度,建设以及后续的运营维护成本较高。精密单点定位PPP是一种基于卫星导航系统的定位技术,PPP使用非差码和载波相位观测量,可通过在全球广泛分布的参考站提供纠正参数,进而完成高精度的位置解算。PPP可实现动态分米级、静态厘米级的定位精度,而且精度不随着距离的增加而出现明显降级,不需要自建参考站。基于加拿大自然资源部的CSRS-PPP软件,介绍了传统组合精密单点定位的解算原理。通过典型场景分析PPP在铁路导航应用中存在的实时性、可用性和安全性问题。提出一种改进的基于PPP和惯性导航系统INS的扩展卡尔曼滤波EKF组合定位方案,试验结果表明,PPP/INS组合定位方法能够在不降级定位精度的前提下解决因观测量短暂不足导致的可用性问题。 Traditional navigation and positioning applications in railways adopt DGNSS,a differential reference station network has to be established along tracks in order to meet the requirements of positioning accuracy,which requires high construction and subsequent operation and maintenance costs.Precise Point Positioning(PPP)is one of GNSS positioning techniques,which resolves position,velocity based on code and carrier-phase measurements combined with globally distributed GNSS reference station networks.PPP is capable of obtaining centimeter-level accuracy in static mode and decimeter-level one in kinematic mode.In addition,its performance won’t degrade with the increase of distance and no additional reference stations are required.This paper introduced PPP fundamentals based on CSRS-PPP software platform coming from Natural Resources Canada(NRC).The authors analyzed PPP’s capacity of real-time,availability and safety issues in typical railway navigation application environments.Then a modified integrated positioning method of PPP/INS-based extended Kalman filter was proposed.The results show that integrated solution could solve the availability issue caused by transitory observation unavailability without degrading the accuracy of positioning.
作者 靳成铭 蔡伯根 王剑 上官伟 Allison Kealy JIN Chengming;CAI Baigen;WANG Jian;SHANGGUAN Wei;Allison Kealy(School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China;Beijing Engineering Research Center of EMC and GNSS Technology for Rail Transportation, Beijing 100044, China;State Key Laboratory of Rail Traffic Control and Safety, Beijing 100044, China;School of Science, Royal Melbourne Institute of Technology, Melbourne 3001, Austrailia)
出处 《铁道学报》 EI CAS CSCD 北大核心 2020年第12期82-89,共8页 Journal of the China Railway Society
基金 国家自然科学基金(U1934222) 国家重点研发计划(2018YFB1201500) 中央高校基本科研业务费专项资金(2017YJS030)。
关键词 交通信息工程及控制 铁路导航 精密单点定位 性能分析 应用架构 卡尔曼滤波 traffic information engineering and control railway navigation PPP performance assessment application architecture Kalman filter
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  • 1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(2):7-10. 被引量:15
  • 2李凯.青藏铁路ITCS信号控制系统方案[J].中国铁路,2005(7):31-36. 被引量:30
  • 3张小红,刘经南,Rene Forsberg.基于精密单点定位技术的航空测量应用实践[J].武汉大学学报:信息科学版,2006,31(1):19-22. 被引量:139
  • 4Roberg J A.Data Reduction Algorithm for Planar Curves[J].Computer Vision Graphics Image Process,1985,29(2):168-195. 被引量:1
  • 5GB50090-99铁路线路设计规范[S].中华人民共和国铁道部,1999:7-8. 被引量:5
  • 6Mohammed A.Quddus,Washington Y.Ochieng,Robert B.Noland.Current Map-Matching Algorithms for Transport Applications:State-of-the art and Future Research Directions[R].Transportation Research Part C 15,2007:312-328. 被引量:1
  • 7Samer S Saab.A Map Matching Approach for Train Positioning I:Development and Analysis[J].IEEE,Transactions on Vehicular Technology,2000,49(2):467-474. 被引量:1
  • 8Greenfeld J S.Matching GPS Observations to Locations on A Digital Map[C]∥Proc of the 81th Annual Meeting of the Transportation Research Board,Washington D C,2002:118-125. 被引量:1
  • 9Joshi R R.A New Approach to Map Matching for In-Vehicle Navigation Systems:The Rotational Variation Metric[C]∥ Proc IEEE Intelligent Transportation Systems,2001:33-38. 被引量:1
  • 10Joshi R.Novel Metrics for Map-Matching in In-Vehicle Navigation Systems[C]∥ IEEE Intelligent Vehicle Symposium,2002(1):36-43. 被引量:1

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