| GPS高程曲面拟合算法的精度分析 |
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| 引用本文： | 南亲江,卜建阳.GPS高程曲面拟合算法的精度分析[J].现代测绘,2008,31(4). |
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| 作者姓名： | 南亲江 卜建阳 |
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| 作者单位： | 1. 南京工程高等职业学校,江苏,南京,211135
2. 江苏省水文地质工程地质勘察院,江苏,淮安,223005 |
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| 摘 要： | 在GPS高程测量中需要将大地高转换为正常高。本文对GPS高程的多项式曲面拟合、多面函数拟合和移动曲面函数拟合算法进行了比较分析。结果表明,三种拟合算法均能达到四等几何水准的要求,但移动曲面拟合算法精度最高,多面函数拟合算法精度最低。
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| 关 键 词： | GPS高程拟合 多项式曲面拟合 多面函数拟合 移动曲面拟合 |
GPS High Distance Draw up to Match Calculate Way Curved Face Draws Up the Accuracy Analysis of Worthwhile Method |
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| Nan Qinjiang,Po Jianyang.GPS High Distance Draw up to Match Calculate Way Curved Face Draws Up the Accuracy Analysis of Worthwhile Method[J].Modern Surveying and Mapping,2008,31(4). |
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| Authors: | Nan Qinjiang Po Jianyang |
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| Abstract: | In the GPS height surveying,it is necessary to convert geodetic height to normal height.The principles of polynomial curve surface fitting,multiply surface function fitting and moving curve surface fitting are analyzed and compared with each other.The results indicate that all three kinds of fitting can meet the criterion of Fourth-grade Leveling.But the fitting results of multiply surface function is worst and the fitting results of moving curve surface fitting is best. |
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| Keywords: | GPS height surveying Polynomial curve surface fitting Multiply surface function fitting Moving curve surface fitting |
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