| 基于分段线性融合算法的铁路三维曲线无控制点配准 |
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| 引用本文： | 段付佳,任晓春,武瑞宏,赵英豪,史楠,周乐韬.基于分段线性融合算法的铁路三维曲线无控制点配准[J].测绘与空间地理信息,2020(4):40-44,49. |
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| 作者姓名： | 段付佳 任晓春 武瑞宏 赵英豪 史楠 周乐韬 |
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| 作者单位： | 西南交通大学地球科学与环境工程学院;轨道交通工程信息化国家重点实验室（中铁一院） |
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| 基金项目： | 国家自然科学基金(41874008)资助。 |
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| 摘 要： | 提出了一种基于GNSS和全站仪两种手段获取同名直线的三维坐标转换配准方法,该方法能够对采用GNSS和全站仪两种手段获得的轨道中线进行配准。文中利用实测数据对该方法的有效性进行了验证,结果表明:该方法能够达能达到厘米级的配准精度,同时解决了传统的七参数坐标转换方法依赖参数初值和公共点的问题,为快速、准确地利用多源数据检测轨道平顺性提供了技术支持。
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| 关 键 词： | 坐标转换 七参数 配准 同名直线 轨道平顺性 |
Railway Three-dimensional Curve Non-control Point Registration Based on Piecewise Linear Fusion Algorithm |
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| DUAN Fujia,REN Xiaochun,WU Ruihong,ZHAO Yinghao,SHI Nan,ZHOU Letao.Railway Three-dimensional Curve Non-control Point Registration Based on Piecewise Linear Fusion Algorithm[J].Geomatics & Spatial Information Technology,2020(4):40-44,49. |
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| Authors: | DUAN Fujia REN Xiaochun WU Ruihong ZHAO Yinghao SHI Nan ZHOU Letao |
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| Institution: | (Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 611756,China;State Key Laboratory of Rail Transit Engineering Infornatization(FSDI),Xi′an 710043,China) |
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| Abstract: | In this paper,a three-dimensional coordinate transformation registration method for the corresponding straight line obtained by GNSS and total station is proposed.This method can register the orbital midline obtained by GNSS and total station.The validity of the proposed method is verified.The results show that the method can achieve the accuracy of centimeter-level registration,and solve the problem that the traditional seven-parameter coordinate conversion method relies on the initial value of the parameter and the common point,which is fast and accurate.Technical support is provided for detecting track smoothness with multi-source data. |
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| Keywords: | coordinate transformation seven parameters registration corresponding line track smoothness |
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