| 利用EGM2008和面状函数求解高程异常的效果分析 |
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| 引用本文： | 徐国宏.利用EGM2008和面状函数求解高程异常的效果分析[J].现代测绘,2014(2):31-32. |
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| 作者姓名： | 徐国宏 |
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| 作者单位： | 福建省测绘产品质量监督检验站,福建福州350001 |
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| 摘 要： | 本文选取了EGM2008模型和面状拟合中的二次曲面拟合、平面拟合、多面函数拟合等方法进行GPS高程异常计算,通过实测数据分析了EGM2008模型和面状拟合法求解的高程异常的精度,结果表明:二次曲面拟合相比其他方法精度更好,达到厘米级。
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| 关 键 词： | 高程拟合 EGM2008 二次曲面拟合 平面拟合 |
The Performance Analysis of EGM2008 and Surface Functions for Height Anomaly Calculation |
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| XU Guo-hong.The Performance Analysis of EGM2008 and Surface Functions for Height Anomaly Calculation[J].Modern Surveying and Mapping,2014(2):31-32. |
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| Authors: | XU Guo-hong |
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| Institution: | XU Guo-hong (Fujian Quality Surpervison and Check Station of Surveying and Mapping Product, Fuzhou Fujian 350001, China) |
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| Abstract: | This paper calculatesthe height anomaly by EGM2008 and quadratic surface fitting,plane fitting and multi-face functions.Utilizing a data set from a surveying project,the accuracy of height anomaly obtained by EGM2008 and surface fitting is analyzed.The results show that the accuracy of quadratic surface fitting is the best and at centimeter level. |
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| Keywords: | height fitting EGM2008 quadratic surface fitting plane fitting |
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