| 基于Ⅰ—范解的加权最小二乘平差 |
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| 引用本文： | 李广云,贾国宪.基于Ⅰ—范解的加权最小二乘平差[J].测绘学院学报,1993(2). |
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| 作者姓名： | 李广云 贾国宪 |
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| 作者单位： | 解放军测绘学院
(李广云)，57652部队(贾国宪) |
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| 摘 要： | 本文首先讨论了I—范解的统计特性,并构造了用I—范解残差进行粗差检测的统计量L_i;提出了基于I—范解的加权最小二乘平差方法;通过实际算例和其它选权迭代法进行了比较,得到了一些实用的结论。
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| 关 键 词： | Ⅰ—范解 粗差检测 加权最小二乘平差 |
The Weighted Least Squares Adjustment Based on L_1-Norm Solution |
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| Li Guangyun Jia Guoxian.The Weighted Least Squares Adjustment Based on L_1-Norm Solution[J].Journal of Institute of Surveying and Mapping,1993(2). |
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| Authors: | Li Guangyun Jia Guoxian |
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| Institution: | Li Guangyun Jia Guoxian |
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| Abstract: | The statistical properties of L_1-norm solution are discussed firstly in this paper, Then test value Li for outlyer detection which is based on L_1-norm solution is derived. From which a new weighted L. S. adjustment method is proposed.It's comparison to other iterative weight and data-snooping methods is given in two examples. Finally, we get some conclusions. |
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