摘要
各个城市和大型工程项目,正在使用着大量的独立坐标系成果,本文从坐标系建立的基本要素入手,分析了高程改化和投影变形的分布规律,提出了独立坐标系建立的基本方法,结合实际的工程案例,探讨建立不同独立坐标系的系统差异和优势,为独立坐标系的选择和建立提供了参考。
A large number of results based on independent coordinate system are using in cities and largeengineering projects. This paper analyzed the elevation change and projection deformation distribution law through the basic elements of establishing coordinate system , and put forward the basic method of establishing the independent coor- dinate system. Combining with the actual engineering case, this paper also discussed the system differences and advanta- ges of forming different independent coordinate system, which provided the references for the choice and setting up of in- dependent coordinate system.
出处
《北京测绘》
2013年第5期50-53,64,共5页
Beijing Surveying and Mapping
关键词
独立坐标系
椭球参数
中央子午线投影变形
高程改化
independent coordinate system
ellipsoid parameters
central meridian
projection deformation
elevation change
