| L_p估计的计算问题 |
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| 引用本文： | 周世健. L_p估计的计算问题[J]. 测绘学院学报, 1995, 0(2) |
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| 作者姓名： | 周世健 |
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| 作者单位： | 江西抚州华东地质学院 |
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| 摘 要： | 本文对Ｌｐ估计的直接算法进行了详细的分析和讨论，由于直接算法效率低，文中提出了一种快速算法（残差逐步下降法），采用可变尺度因子来修正Ｈｕｂｅｒ的常数尺度因子。最后，以实例加以分析和说明。
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| 关 键 词： | L_p估计，直接算法，快速算法，可变尺度因子 |
The Computational Problem for L_p Estimation |
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| Zhou Shijian. The Computational Problem for L_p Estimation[J]. Journal of Institute of Surveying and Mapping, 1995, 0(2) |
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| Authors: | Zhou Shijian |
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| Affiliation: | Zhou Shijian |
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| Abstract: | The direct algorithm of Lp estimation is analysed and discussed in detail. A fast algorithm (residual steepest descent) which can revise Huber's constant scale factor using a variable scale factor is proposed because the computational efficiency of direct algorithm is very low. Finally. the analysis and explanation is given by numerical example. |
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| Keywords: | L_p estimation Direct algorithm Fast algorithm A variable scale factor |
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