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。
With the development of Global Positioning System （GPS）technology,GPS elevation obtains mpree-edented applications in construction. In order to prove that the GPS fitting elevation could meet the pplication of engineering in plane area with modem GPS survey technology,some common methods applied in , ;PS elevation fitting were introduced briefly in this paper. For the control points and the third-grade leveling, the＂ ormal heights of the points were computed by the fitting model of plane and curved surface. Compared with the esult of leveling, the GPS elevation fitting precision was analyzed. The conclusion is that the GPS leveling levation with fewer fitting mean square error and high precision can be obtained in surveying of level C GPS ontrol network.
出处
《水道港口》
2012年第6期536-539,共4页
Journal of Waterway and Harbor
关键词
GPS高程测量
正常高
大地高
高程异常
GPS elevation survey
normal height
geodetic height
height anomaly
