| GPS控制测量的一种坐标转换方法 |
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| 引用本文： | 徐源强,高井祥,张丽.GPS控制测量的一种坐标转换方法[J].全球定位系统,2010,35(3):14-18,27. |
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| 作者姓名： | 徐源强 高井祥 张丽 |
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| 作者单位： | 中国矿业大学环境与测绘学院,江苏,徐州,221008;中国矿业大学江苏省资源环境信息工程重点实验室,江苏,徐州,221008 |
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| 摘 要： | 坐标转换是测量工作的一项重要任务，通过分析布尔沙模型进行坐标转换的缺点，提出了两步法坐标转换，即选择合适的投影面和中央子午线，先通过布尔沙模型建立一个预转换，然后再利用平面坐标转换模型进行坐标转换，最后，通过工程实例得出：在已知点较少的情况下采用两步法坐标转换可以得到高精度的转换坐标。
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| 关 键 词： | 坐标转换 布尔沙模型 两步法 |
A Method of Coordinate Transformation of GPS Control Surveying |
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| XU Yuan-qiang,GAO Jing-xiang,ZHANG Li.A Method of Coordinate Transformation of GPS Control Surveying[J].Gnss World of China,2010,35(3):14-18,27. |
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| Authors: | XU Yuan-qiang GAO Jing-xiang ZHANG Li |
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| Institution: | 1. China University of Mining and Technology School of Environmental Science and Spatial ln f ormatics , Xuzhou J iangsu 221008, China ; 2. China University of Mining and Technology J iangsu Key Laboratory of Resources and Environmental, Xuzhou J iangsu 221008, China) |
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| Abstract: | Coordinate transformation is important in surveying work. The paper discusses the disadvantages of the Bursa model, and then introduces a two-step coordinate transformation method that choose a suitable projection plane and central meridian, establishes a pretronsformation based on Bursa model, and converts the coordinates by transformation model of plane coordinates. Through a practical example, the conclusion is obtained, with less common points, we can have high precision converted measurements using the two-step method. |
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| Keywords: | Coordinate transformation Bursa model two-step method |
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