基于二次曲面拟合法确定区域似大地水准面
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摘要
采用GPS测量方法获得大地高,取代传统的水准测量来确定区域似大地水准面精化的方法。在如何确定区域似大地水准面方面,通过对某一区域似大地水准面精化计算,得到计算结果残差与中误差计算等,采用计算机编程实现了该区域大地水准面精化。计算结果表明二次曲面拟合法可以较好解决小区域似大地水准面精化,在该区域内任一GPS测量点,依据其三维坐标就可以得到这个点位的正常高。
GPS measurements are used to obtain geodetic heights, replacing traditional leveling measurements to determine areas of geoid-like refinement. In terms of how to determine the regional geoid level, the calculation results of residual and medium error calculations are obtained by refining the geodetic surface of a certain area, and the geoid refinement of the area is realized by computer programming. The calculation results show that the quadric surface fitting method can better solve the refinement of the small area like the geoid. In any GPS measurement point in this area, the normal height of this point can be obtained according to its three-dimensional coordinates.
GPS measurements are used to obtain geodetic heights, replacing traditional leveling measurements to determine areas of geoid-like refinement. In terms of how to determine the regional geoid level, the calculation results of residual and medium error calculations are obtained by refining the geodetic surface of a certain area, and the geoid refinement of the area is realized by computer programming. The calculation results show that the quadric surface fitting method can better solve the refinement of the small area like the geoid. In any GPS measurement point in this area, the normal height of this point can be obtained according to its three-dimensional coordinates.
引文
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[3]辛久志.GPS高程应用的若干理论与实践的研究[D].辽宁:辽宁工程技术大学,1998.
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[5]龚善荣,尤建标.似大地水准面精化成果在土地整治领域的应用[J].地矿测绘,2014,(2):36-38.
[6]蒋平.小区域似大地水准面精化方法的研究[D].陕西:西安科技大学,2011.
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[10]庄亚飞,李素敏.基于Python的ArcGIS数据属性值顺序码处理研究[J].软件,2018,39(7):68-71.
[11]艾嘉豪,朱大明.无人机倾斜摄影测量在三维建模中的应用[J].软件,2018,39(6):192-195.
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[13]庾佳.浅谈OOP在软件开发中的应用与优势[J].软件,2018,39(6):58-60.
[14]杨旭东,陈婷,梁潇聆.基于web的本科毕业师生双选系统开发设计[J].软件,2018,39(5):182-188.