| GPS高程拟合在工程中的应用 |
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| 引用本文： | 刘彦祥.GPS高程拟合在工程中的应用[J].水道港口,2012,33(6):536-539. |
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| 作者姓名： | 刘彦祥 |
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| 作者单位： | 交通运输部天津水运工程科学研究所,天津,300456 |
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| 摘 要： | 随着现代GPS技术的不断发展,GPS高程逐步在工程建设中得到广泛应用。为了证实在地势平缓区域充分利用现代GPS测量技术,GPS拟合高程可以满足工程应用的问题,通过对高程拟合中常用方法的简要介绍,结合工程实例,采用平面与曲面拟合模型,解算待定点的正常高,之后与三等水准测量的结果进行分析比较后证实,在进行C级以上GPS控制测量时,可获得高精度拟合中误差的GPS水准高程。
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| 关 键 词： | GPS高程测量 正常高 大地高 高程异常 |
Application of GPS elevation fitting in engineering |
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| LIU Yan-xiang.Application of GPS elevation fitting in engineering[J].Journal of Waterway and Harbour,2012,33(6):536-539. |
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| Authors: | LIU Yan-xiang |
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| Institution: | LIU Yan-xiang(Tianjin Research Institute for Water Transport Engineering,Tianjin 300456,China) |
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| Abstract: | With the development of Global Positioning System(GPS)technology,GPS elevation obtains unprec-edented applications in construction.In order to prove that the GPS fitting elevation could meet the application of engineering in plane area with modern GPS survey technology,some common methods applied in GPS elevation fitting were introduced briefly in this paper.For the control points and the third-grade leveling,the normal heights of the points were computed by the fitting model of plane and curved surface.Compared with the result of leveling,the GPS elevation fitting precision was analyzed.The conclusion is that the GPS leveling elevation with fewer fitting mean square error and high precision can be obtained in surveying of level C GPS control network. |
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| Keywords: | GPS elevation survey normal height geodetic height height anomaly |
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