| 基于LiDAR的城市坐标系精度评估及应用 |
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| 引用本文： | 胡耀锋,胡欣然.基于LiDAR的城市坐标系精度评估及应用[J].测绘通报,2020,0(10):101-105. |
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| 作者姓名： | 胡耀锋 胡欣然 |
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| 作者单位： | 广州市城市规划勘测设计研究院, 广东 广州 510060 |
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| 基金项目： | 智慧广州时空信息云平台建设项目（GZIT2016-A5-147） |
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| 摘 要： | 本文以广州为例，阐述了高斯投影变形的传统方法。结合广州市利用高精度机载LiDAR和广州2000坐标系的建设项目，介绍了高精度LiDAR数据获取及DEM制作流程，以及设计了高斯投影变形数据处理的两种关键技术方法，并且开发了自动化处理软件，提出了城市坐标系精度评估新方法。
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| 关 键 词： | 机载激光雷达 高斯投影 中央子午线 数字高程模型 精度评估 |
| 收稿时间： | 2020-04-09 |
Accuracy evaluation and application of urban coordinate system based on LiDAR |
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| HU Yaofeng,HU Xinran.Accuracy evaluation and application of urban coordinate system based on LiDAR[J].Bulletin of Surveying and Mapping,2020,0(10):101-105. |
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| Authors: | HU Yaofeng HU Xinran |
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| Institution: | Institute of Guangzhou Urban Planning and Design Survey Research, Guangzhou 510060, China |
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| Abstract: | Taking Guangzhou as an example, this paper expounds the traditional method of Gauss projection deformation. Combined with Guangzhou high-precision LiDAR and construction project with Guangzhou 2000 coordinate system, this paper introduces high-precision LiDAR data acquisition and DEM production process, designs two key technical methods of data processing of Gauss projection composite deformation, develops the automatic processing software and puts forward a new method of urban coordinate system accuracy evaluation. |
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| Keywords: | LiDAR Gauss projection centralmeridian DEM accuracy evaluation |
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