摘要
从球面几何学的原理出发,探讨了测量中地球曲率严密改正的方法,推导出了全站仪测距三角高程测量、普通三角高程测量的严密计算公式,给出了相应的观测斜距、观测平距、视线水准面上大地线长、大地水准面(或参考椭球面)上大地线长、高斯平面距离间的数学关系。阐述了实现国家高程向岛礁精确传递的过程与效果。
According to the principle of the spherical geometry, this paper approaches the methods of the Earth curvature correction in surveying. It gives accurate calculation formulas of the ETS (electronic total station) trigonometric leveling and the ordinary trigonometric leveling. The strict mathematic relations among slope distance, horizontal distance, arc length on the instrument level surface, the arc length on the geodetic level surface (or on the surface of reference ellipsoid) and distance on the Gauss plane has been given. It elaborates the process and results of transmittance the state height to islands and islets by the accurate ETS trigonometric leveling and the accurate ordinary trigonometric leveling.
出处
《港工技术》
北大核心
2005年第2期50-53,共4页
Port Engineering Technology
基金
山东省交通科研基金项目(LJK(字)02-016)
