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| 平面相似变换之换算测点精度研究 | |
| 引用本文： | 汤仲安,王新洲,莫登华,周儒夫. 平面相似变换之换算测点精度研究[J]. 长江科学院院报, 2003, 20(4): 54-57 |
| 作者姓名： | 汤仲安 王新洲 莫登华 周儒夫 |
| 作者单位： | 1. 武汉大学,测绘学院,湖北,武汉,430079 2. 长江水利委员会,长江中游水文水资源勘测局,湖北,武汉,430012 3. 长江水利委员会,荆江水文水资源勘测局,湖北,荆州,434002 |
| 基金项目： | 国家高新技术研究发展计划(863计划)项目资助(2001AA135081) |
| 摘 要： | 在以往研究成果的基础上，结合生产实际，提出了换算测点边长放样精度研究的有效途径；通过实例计算与可视化分析，验证了该方法的理论可靠性，演示了该方法的实用性及可操作性。 |
| 关 键 词： | 平面相似变换 最小二乘估计 误差椭圆 可视化 |
| 文章编号： | 1001-5485(2003)04-0054-04 |
Precision research on conversion surveying point data based on reliable model of plane simulitude conversion |
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| TANG Zhong-An,WANG Xin-Zhou,MO Deng-Hua,ZHOU Ru-Fu. Precision research on conversion surveying point data based on reliable model of plane simulitude conversion[J]. Journal of Yangtze River Scientific Research Institute, 2003, 20(4): 54-57 | |
| Authors: | TANG Zhong-An WANG Xin-Zhou MO Deng-Hua ZHOU Ru-Fu |
| Abstract: | The problems on coordinate system conversion and precision of conversion surveying points are always encountered in surveying engineering. For solving the reliability problem of precision of line length between conversion surveying points in practical engineering, on the basis of previous study results and the method of building a plane simulitude conversion model by using least squares estimation, an effective way solving the presision problem of line length between two surveying points in coordinate is theoretically proposed. Througth the result of an illustration calculation and visualization analysis t he reliability of the method is verified theoretically, meanwhile, its practicability and operaling reliability is revealed. |
| Keywords: | plane simulitued coversion least squares estimation error ellipse visualization |
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