| 考虑地球重力场模型的移动曲面法 |
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| 引用本文： | 赵煜,贺学文,司向阳.考虑地球重力场模型的移动曲面法[J].地矿测绘,2011,27(3):25-28. |
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| 作者姓名： | 赵煜 贺学文 司向阳 |
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| 作者单位： | 1. 河南省地质测绘总院,河南郑州,450006
2. 夏邑县国土资源局,河南夏邑,476400 |
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| 摘 要： | 利用GPS水准法求解GPS点位正常高的方法有很多,但这些方法各有利弊,其精度与地形起伏大小、重合点数量、点位分布等有关。为此,提出利用地球重力场模型改进GPS水准中移动曲面法的方法。实践证明,利用该方法在一定程度上可以提高GPS定位的精度。
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| 关 键 词： | GPS水准 正常高 高程异常 地球重力场模型 改进移动曲面法 |
Moving Surface Method Considered by Earth's Gravity Field Model |
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| ZHAO Yu,HE Xue-wen,SI Xiang-yang.Moving Surface Method Considered by Earth's Gravity Field Model[J].Surveying and Mapping of Geology and Mineral Resources,2011,27(3):25-28. |
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| Authors: | ZHAO Yu HE Xue-wen SI Xiang-yang |
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| Affiliation: | 1.Henan General Institute of Surveying and Mapping of Geology,Zhengzhou Henan 450006,China;2.Xiayi County Land Resources Administration,Xiayi Henan 476400,China) |
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| Abstract: | There are many kinds of methods to estimate normal height of GPS points by using GPS leveling,but there are advantages and disadvantages in these methods.Their precision are related to relief,the number of closely coincide and their distribution and so on.This paper is mainly about how to improve moving surface method of GPS leveling by means of earth’s gravity field model.The experiment certifies,the method could heighten,to a certain degree,GPS height precision. |
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| Keywords: | GPS leveling normal height height anomaly earth’s gravity field model improved moving surface method |
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