| 浅析大比例尺地形测量坐标系的选择 |
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| 引用本文： | 朱春芬,俞春,陈建新. 浅析大比例尺地形测量坐标系的选择[J]. 地理空间信息, 2007, 5(3): 100-101 |
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| 作者姓名： | 朱春芬 俞春 陈建新 |
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| 作者单位： | 1. 长江水利委员会,水文局长江下游水文水资源勘测局,江苏,南京,210011
2. 重庆市规划局,重庆,400000 |
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| 摘 要： | 大比例尺地形测量通常会遇到坐标系统选择的问题,测量规范中要求坐标系的选择以投影长度变形值不大于2.5cm/km为原则。通过对苏通大桥控制测量选择多种坐标系得出的成果进行比较,简单分析了地形测量如何选择坐标系以满足测量精度要求。
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| 关 键 词： | 地形测量 投影 大比例尺 坐标系 |
| 文章编号： | 1672-4623（2007）03-0100-02 |
| 修稿时间： | 2007-04-04 |
Choice of Coordinate System for Topographic Survey with Large Scale |
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| ZHU Chunfen,YU Chun,CHEN Jianxin. Choice of Coordinate System for Topographic Survey with Large Scale[J]. Geospatial Information, 2007, 5(3): 100-101 |
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| Authors: | ZHU Chunfen YU Chun CHEN Jianxin |
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| Affiliation: | 1. Survey Bureau of the Hydrology and Water Resources of Lower Reaches of Changjiang River, CWRC, Nanjing 210011,China; 2. Chongqing Urban Planning Bureau, Chongqing 400000, China |
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| Abstract: | Large-scale topographic survey often encountered coordinate system option. As the principle surveying norms require the coordinate system to choose the length of the projection deformation is not longer than 2.5 cm/km. Through comparing the results of many coordinate system in the control survey of the Sutong Bridge project, this article make a simple analysis of how to choose the terrain measurement coordinate system to meet the accuracy requirements. |
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| Keywords: | topographic survey projection large scale coordinates system |
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