| 北斗应用于高铁CPI控制测量的算法与试验研究 |
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| 引用本文： | 严丽,梅熙,卢建康,黄丁发.北斗应用于高铁CPI控制测量的算法与试验研究[J].测绘工程,2017,26(5). |
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| 作者姓名： | 严丽 梅熙 卢建康 黄丁发 |
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| 作者单位： | 1. 西南交通大学高速铁路运营安全空间信息技术国家地方联合工程实验室,四川 成都,610031;2. 中铁二院工程集团有限责任公司,四川 成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对高速铁路CPI控制网,对北斗/GPS系统的单独与联合基线解算模型进行研究,开发北斗/GPS基线处理软件,并应用于高铁控制网建设。对川藏铁路成都-雅安段CPI控制网测试的结果表明:北斗基线解算精度X,Z方向优于1mm,Y方向优于2mm;北斗重复基线较差、同步环和异步环闭合差的合格率与GPS相当;北斗无约束平差最弱边相对中误差为3.1ppm,精度与GPS基本一致;北斗CPI控制网测试各项指标均满足《高速铁路工程测量规范》要求,可用于高速铁路测量控制网的建立。
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| 关 键 词： | 北斗卫星系统 GPS 高铁控制网 基线解算模型 相对中误差 |
Algorithm and experiment of applying BDS to constructing CPI control network of high speed railway |
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| YAN Li,MEI Xi,LU Jiankang,HUANG Dingfa.Algorithm and experiment of applying BDS to constructing CPI control network of high speed railway[J].Engineering of Surveying and Mapping,2017,26(5). |
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| Authors: | YAN Li MEI Xi LU Jiankang HUANG Dingfa |
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| Abstract: | This paper discusses the independent and combined BDS/GPS baseline processing models .A corresponding software package has been developed ,which can be applied to constructing CPI and CPII control network of high speed railway .Taken Sichuan‐Xizang high speed railway as an example ,a test of constructing CPI control network in Chengdu‐Yaan section is carried out .The test results show that BDS can achieve better than 1 mm precision in X and Z direction and 2 mm precision in Y direction .BDS and GPS have the same passing rate of repeat baseline differences and synchronous and asynchronous loop closure errors .BDS weakest baseline’ s relative error from constrained adjustment results is 3.1 ppm , which is consistent with that of GPS . All assessments indicate that BDS test results satisfy the requirements of high speed railway engineering surveying specifications ,and it can work well in high speed railway control network constructing . |
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| Keywords: | BDS GPS high speed railway control network baseline processing model relative error |
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