高铁CPI数据处理及控制点稳定性分析  

Analysis on data processing and stability of control points for high-speed railway CPI

作　　者：吴波[1] 黄博[1] 安江雷 WU Bo;HUANG Bo;AN Jianglei(Jiangsu Provincial Surveying&Mapping Engineering Institute/Key Laboratory for Satellite Mapping Technology and Applications of State Administration of Surveying,Mapping and Geoinformation of China,Nanjing 210013,China)

机构地区：[1]江苏省测绘工程院/卫星测绘技术与应用国家测绘地理信息局重点实验室,南京210013

出　　处：《导航定位学报》2019年第1期112-116,共5页Journal of Navigation and Positioning

摘　　要：为了进一步保证和提高高铁基础平面控制网(CPI)的精度,以通苏嘉铁路(南通至张家港段)为例,提出一套CPI复测技术方案:给出高速铁路CPI测量技术要求,阐述CPI复测数据处理及精度分析过程;并对控制点进行稳定性分析,对不稳定点进行坐标修正更新。结果表明该测量方案可以保证CPI的精度和质量。In order to further ensure and improve the accuracy of high-speed railway CPI,the paper proposed a set of technical scheme for re-measuring CPI by taking Tong-Su-Jia high-speed railway(Nantong to Zhangjiagang section)as the example:the measure technical requirement of the CPI was given,and the procedures of data processing and the accuracy analysis of re-measuring CPI were elaborated;then the stability of the control points was analyzed,and the coordinates of those unstable points were amended and updated.Results showed that the proposed scheme could help ensure the accuracy and quality of CPI.

关 键 词：高速铁路 基础平面控制网数据处理 基线解算 控制点稳定性分析 

分 类 号：P228[天文地球—大地测量学与测量工程]