列车组合定位系统定位精度评估方法研究  

Research on Positioning Accuracy Evaluation Method for Integrated Train Positioning System

作　　者：刘丹[1] 王剑[1,2,3] 姜维 上官伟 LIU Dan;WANG Jian;JIANG Wei;SHANGGUAN Wei(School of Electronics and Information Engineering,Beijing Jiaotong University,Beijing 100044,China;State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing 100044,China;Beijing Engineering Research Center,Beijing 100044,China)

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]北京交通大学轨道交通控制与安全国家重点实验室,北京100044 [3]北京市工程技术研究中心,北京100044

出　　处：《铁道学报》2019年第11期79-87,共9页Journal of the China Railway Society

基　　金：国家重点研发计划(2016YFB1200100);国家自然科学基金(61703034,60733049);北京市自然科学基金(4172049,4184096)

摘　　要：为定量、准确地评估列车组合定位系统的定位精度,研究了基于高精度参考系统的列车组合定位系统定位精度评估方法,提出实时和后处理定位精度评估策略。选取高精度SPAN-FSAS(Synchronized Position Attitude&Navigation-FSAS)组合导航系统为参考系统,计算瞬时定位误差评估列车组合定位系统的实时定位精度。选取IE(Inertial Explorer)紧耦合和RTKLIB动态模式解算的高精度定位结果为参考,计算多个定位精度评估参数,综合评估列车组合定位系统的后处理定位精度。以环行铁道试验线的实测数据为基础,验证了所提方法可以直观、定量地观测到列车组合定位系统的瞬时定位精度和后处理定位精度。In order to quantitatively and accurately evaluate the positioning accuracy of integrated train positioning system(ITPS), by studying the positioning accuracy evaluation method based on the high-precision reference system, this paper proposed real-time and post-processing positioning accuracy evaluation strategies. The high-precision integrated navigation system SPAN-FSAS(Synchronized Position Attitude & Navigation-FSAS)was selected as the reference system, while instantaneous positioning error was calculated to evaluate the real-time positioning accuracy for ITPS. In addition, the positioning results based on the IE(Inertial Explorer) tightly-coupled integration and RTKLIB kinematic mode were chosen as the post-processing reference system, and multiple positioning accuracy evaluation parameters were calculated to synthetically evaluate the post-processing positioning accuracy of ITPS. The real operation data of Test Loop Track verified that the proposed method can observe the instantaneous and post-processing positioning accuracy intuitively and quantitatively for ITPS.

关 键 词：列车组合定位系统 定位精度 后处理评估 紧耦合 RTKLIB动态模式 

分 类 号：U284[交通运输工程—交通信息工程及控制]