| 二次曲面拟合法在区域似大地水准面精化中的应用 |
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| 引用本文： | 雷伟伟,郑红晓.二次曲面拟合法在区域似大地水准面精化中的应用[J].测绘与空间地理信息,2008,31(6). |
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| 作者姓名： | 雷伟伟 郑红晓 |
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| 作者单位： | 1. 河南理工大学测绘学院,河南,焦作,454000
2. 河南省中纬测绘规划信息工程有限公司,河南,焦作,454000 |
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| 基金项目： | 河南省教育厅自然科学基金
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河南理工大学校科研和校改项目
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| 摘 要： | 以某市为例,介绍了二次曲面拟合法在区域似大地水准面精化中的应用,拟合得到厘米级的似大地水准面模型,并给出有益结论.
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| 关 键 词： | 似大地水准面 高程异常 二次曲面拟合 精度 |
The Application of Quadric Surface Fitting in Regional Quasi Geoid Refining |
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| LEI Wei-wei,ZHENG Hong-xiao.The Application of Quadric Surface Fitting in Regional Quasi Geoid Refining[J].Geomatics & Spatial Information Technology,2008,31(6). |
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| Authors: | LEI Wei-wei ZHENG Hong-xiao |
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| Institution: | 1.School of Surveying and Mapping;Henan Polytechnic University;Jiaozuo 454000;China;2.Henan Zhongwei Surveying and Mapping Planning Information Engineering Co.;Ltd.;China |
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| Abstract: | Based on the GPS control network of a city,the application of quadric surface fitting in regional quasi geoid refining was introduced.Then the quasi geoid model in centimeter level and some useful conclusion was given. |
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| Keywords: | Quasi Geoid abnormal height Quadric Surface Fitting precision |
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