| 利用GPS高求取正常高的几种拟合方法 |
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| 引用本文： | 田建波,曾志林.利用GPS高求取正常高的几种拟合方法[J].海洋测绘,2004,24(2):15-18,23. |
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| 作者姓名： | 田建波 曾志林 |
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| 作者单位： | 61365部队，61365部队 天津 300140，天津 300140 |
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| 摘 要： | 全面系统地研究了GPS点正常高的拟合方法，对平面拟合、二次多项式拟合、移动曲面拟合、多曲面拟合的GPS水准拟合方法，采用不同参数进行了论述。并结合实际测区，对GPS水准点进行了计算分析。提出了不同测区、不同地形、不同大地水准面的拟合方法，部分拟合方法已用于实际生产中，结果表明，这些方法是切实可行的。通过计算分析，得出结论：不同地形、不同面积的测区需要采用不同的拟合模型，并且拟合时采用的参数也不同。利用GPS高求定正常高，能够降低劳动强度和作业成本，提高作业效率。
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| 关 键 词： | GPS 正常高 平面拟合 二次多项式拟合 移动曲面拟合 多曲面拟合 水准拟合 |
| 文章编号： | 1671-3044(2004)02-0015-04 |
Fitting Methods for Normal Height with GPS |
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| TIAN Jian-bo,ZENG Zhi-lin.Fitting Methods for Normal Height with GPS[J].Hydrographic Surveying and Charting,2004,24(2):15-18,23. |
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| Authors: | TIAN Jian-bo ZENG Zhi-lin |
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| Abstract: | The fitting methods for normal height with GPS are systematically studied in this paper, The GPS leveling fitting methods such as plane fitting, binary polynomial fitting, moving curved surface fitting and multiple curved surface fitting are considered with different parameters, The calculation and analysis of GPS leveling points are undertaken according to the actual coverage, It puts forward the fitting methods in correspondence with different coverage, topography and geoid, Some of the methods have already been used in actual production and the result shows that the methods are feasible and practicable, After calculation and analysis, it concludes that it is necessary to use different fitting models in different terrain and area, and the parameters used in the models are also different, By using the GPS height to get the normal height, we can decease labor intensity, reduce cost and enhance work efficiency, |
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| Keywords: | plane fitting binary polynomial fitting moving curved surface fitting multiple curved surface fitting |
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