| 利用二次曲面法建立山区局部范围似大地水准面的效果分析 |
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| 引用本文： | 陈栋栋,刘长星.利用二次曲面法建立山区局部范围似大地水准面的效果分析[J].城市勘测,2016(5):96-98. |
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| 作者姓名： | 陈栋栋 刘长星 |
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| 作者单位： | 1. 咸阳市勘察测绘院,陕西 咸阳,712000;2. 西安科技大学,陕西 西安,710054 |
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| 摘 要： | 研究了二次曲面法求取高程异常模型的方法,分析了二次曲面拟合GPS高程的精度,并与水准测量的高程进行对比分析,建立了矿区的似大地水准面模型,从而达到利用GPS高程测量替代传统低等级水准测量的目的,为应用二次曲面法拟合山区地形条件下GPS高程的理论提供了依据。
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| 关 键 词： | 大地水准面 二次曲面法 高程异常 GPS高程 |
Analysis of Effect on Building the Quasi-geoid of Local Area in Mountain by Quadratic Surface Fitting |
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| Chen Dongdong,Liu Changxing.Analysis of Effect on Building the Quasi-geoid of Local Area in Mountain by Quadratic Surface Fitting[J].Urban Geotechnical Investigation & Surveying,2016(5):96-98. |
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| Authors: | Chen Dongdong Liu Changxing |
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| Abstract: | This paper describes how to gain gcycmx using quadratic surface fitting. And analyses the accuracy of GPS height of quadratic surface fitting and compare with geoid height.For the purpose of the use of GPS height to alterna-tive the low-grade leveling by building geoid height model,provides a basis for the theory of quadratic surface fitting GPS height in mountainous terrain conditions. |
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| Keywords: | geoid quadratic surface fitting abnormal height GPS height |
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