POS在铁路轨道不平顺性检测中的应用  

Application of POS in irregularity detection of railway tracks

作　　者：孟凡效 张宇冉 丁乐乐[1] 黎蕾蕾[2] 权冉冉 MENG Fanxiao;ZHANG Yuran;DING Lele;LI Leilei;QUAN Ranran(Tianjin Institute of Geotechnical Investigation Surveying,Tianjin 300191,China;College of Aerospace Engineering,Chongqing University,Chongqing 400044,China;Tianjin Port Engineering Institute Ltd.of CCCC,Tianjin 300220,China)

机构地区：[1]天津市勘察院,天津300191 [2]重庆大学航空航天学院,重庆400044 [3]中交天津港湾工程研究院有限公司,天津300220

出　　处：《导航定位学报》2018年第3期119-126,共8页Journal of Navigation and Positioning

基　　金：重庆市基础与前沿研究计划项目(cstc2016jcyjA0300)

摘　　要：为了进一步提高高速铁路轨道不平顺性检测的效率和精度,提出使用POS技术进行不平顺值检测的方法:在GNSS/INS松组合算法的基础上,同一测段多次测量,对GNSS差分结果和松组合结果分别进行线性优化;再把优化结果坐标转化到计算不平顺参数的坐标系中;然后按照各参数计算公式对比分析全站仪处理结果。实验结果表明:利用该方法计算30m弦长对应的各不平顺性参数的精度与全站仪给出的精度相当,且效率更高,能够满足高速铁路高精度、高效率的作业要求。In order to further improve the efficiency and accuracy of irregularity detection for high-speed railway tracks,the paper proposed to use POS technology for the detection:based on the GNSS/INS loose combination algorithm,multiple measurements were carried out in the same section,and the GNSS differential result and the loose combination result were linearly optimized respectively,then the coordinates of the optimized result were transformed into the coordinate system for calculating the irregularity parameters,finally the calculation formula of each parameter was calculated and the processing result from the total station was comparatively analyzed.Experimental result showed that the accuracy of the irregularity parameters corresponding to 30 m chord length by the proposed method would be similiar with that by the total station,and even with higher efficiency,which could meet the opertation requirement of high accuracy and high efficiency for high-speed railway.

关 键 词：GNSS INS POS 铁路 不平顺性检测 

分 类 号：P228[天文地球—大地测量学与测量工程]