| 地图数字化数据处理的相关平差与精度分析 |
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| 引用本文： | 余晓红. 地图数字化数据处理的相关平差与精度分析[J]. 武汉大学学报 ( 信息科学版), 2003, 28(5): 555-558. |
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| 作者姓名： | 余晓红 |
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| 作者单位： | 中国科学院测量与地球物理研究所, 武汉市徐东路174号, 430077 |
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| 基金项目： | 国家自然科学基金资助项目 (4 0 1710 78) |
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| 摘 要： | 根据地图数字化坐标转换方法、转换所得地面坐标平差方法,得到数字化数据处理的几种方案,对不同方案的计算结果进行比较,讨论了相关性对平差结果的影响,并对数字化数据的精度评定进行了分析。
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| 关 键 词： | 地图数字化 坐标转换 相关平差 |
| 文章编号： | 1671-8860(2003)05-0555-04 |
| 收稿时间： | 2003-05-01 |
| 修稿时间： | 2003-05-01 |
Correlation Adjustment and Accuracy Analysis in Map Digitization Data Processing |
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| YU Xiaohong. Correlation Adjustment and Accuracy Analysis in Map Digitization Data Processing[J]. Geomatics and Information Science of Wuhan University, 2003, 28(5): 555-558. |
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| Authors: | YU Xiaohong |
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| Affiliation: | Institute of Geodesy and Geophysics, Chinese Academy of Sciences, 174 Xudong Road, Wuhan, China, 430077 |
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| Abstract: | The methods for the transformation of map digitized coordinates to ground coordinates include conform method, affine method and project method. Based on these transformation methods, map digitized data are processed by transforming these data into the ground coordinates. And these coordinates are treated as independent observations with the same accuracy. Several schemes of map digitized data adjustment are presented. The results are then analyzed and compared. The influence of digitized data correlation on the adjustment results are further discussed. The accuracy estimation of digitized data is analyzed in the end. |
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| Keywords: | map digitization coordinate transformation correlation adjustment accuracy analysis |
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