摘要
针对大范围或距中央子午线较远的工程,利用椭球变换构建工程独立坐标系方法难以抉择的问题,文中详述了三种椭球变换构建独立坐标系方法原理与流程,通过模拟算例验证了三种方法都能满足工程的精度要求,并分析比较出各方法的特点差异与适用场景,为工程独立坐标系的构建提供参考。
Aiming at the large scale projects or projects farther from the central meridian, it was difficult to choose the method of constructing the independent coordinate system using the ellipsoid transformation. In this paper, the principle and process of three methods of the ellipsoidal transformation to construct the independent coordinate system were described in detail, and through the simulation examples, it was verified that all three methods could meet the accuracy requirements of the engineering, and the characteristic differences and the application scenarios of each method were analyzed and compared, which provided the reference for the construction of the independent coordinate system of the engineering.
作者
刘国栋
刘佳
秦浩
刘浪
Liu Guodong;Liu Jia;Qin Hao;Liu Lang(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《矿山测量》
2021年第4期34-39,共6页
Mine Surveying
基金
山区桥梁与隧道工程国家重点实验室培育基地课题(QSLBF-Y16-19)
重庆市研究生教育优质课程建设项目(JDYZ2019009)。
关键词
椭球变换
独立坐标系
抵偿投影面
高斯正形投影
ellipsoid transformation
independent coordinate system
compensation projection surfaceGaussian conformal projection
