| 数字化坐标转换中顾及模型误差的影响 |
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| 引用本文： | 孙同贺,闫国庆.数字化坐标转换中顾及模型误差的影响[J].北京测绘,2011(2):27-29. |
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| 作者姓名： | 孙同贺 闫国庆 |
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| 作者单位： | 内蒙古科技大学矿业工程学院;内蒙古第五地质矿产勘察开发院; |
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| 摘 要： | 针对数字化坐标转换的模型误差,给出了函数模型优选的标准,提出了衡量误差大小的精确度指标及实用估计方法,讨论了线性和非线性对数字化坐标转换的影响,结果表明采用二阶多项式拟合模型对数字化坐标转换的影响很小,在理论上更为合理,文中通过具体的数字化坐标拟合实例论证了这一点。
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| 关 键 词： | 数字化坐标转换 模型误差 非线性 多项式拟合 |
The Influence of Model Error among the Digitized Coordinates after Conversion |
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| SUN Tong-he YAN Guo-qing.The Influence of Model Error among the Digitized Coordinates after Conversion[J].Beijing Surveying and Mapping,2011(2):27-29. |
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| Authors: | SUN Tong-he YAN Guo-qing |
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| Institution: | SUN Tong-he1 YAN Guo-qing 2(1.Mining Engineering Institute,Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia,Inner Monglia 014010,China 2.The Fifth Geology and Mineral Resources Institute in Inner Mongolia,Inner Mongolia 010100,China) |
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| Abstract: | There exist inevitably model errors in the adjustment function of the digitized coordinates after conversion,due to the various systematic errors.The quality of adjustment results in some extent depends on the function models.For this purpose,the errors of the function models have to be compensated or controlled to the greatest extent.The optimum seeking criteria of the adjusted function models are given in this paper.Then the criteria for judging the function model errors are presented,as well as their pra... |
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| Keywords: | digitized coordinates conversion model error non-linearity multinomial fitting |
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