摘要
详细阐述了8种利用椭球变换建立独立坐标系的方法,推导了独立坐标系高程面与椭球面之间的相互关系,进而建立了椭球变换模型,减少了高程归化变形;并通过计算实例对其投影变形值进行分析,以探究不同方法间的特点与差异,得出了一些有益的结论。
In this paper, we presented eight different ellipsoid transformation methods to establish independent coordinate, and deduced the relationship between ellipsoid and elevation surface of independent coordinate, so as to establish the ellipsoid transformation models and reduce elevation naturalization deformation.Then, we analyzed the projection deformation values by calculation examples, in order to research the characteristics and differences of eight different methods, and obtained some useful conclusions.
出处
《地理空间信息》
2019年第7期87-90,I0003,共5页
Geospatial Information
基金
国家自然科学基金资助项目(41474004)
中建三局集团有限公司武汉绿地中心科研资助项目(WH-LDZX-ZY-078)
关键词
椭球变换
独立坐标
高程投影面
坐标投影
ellipsoid transformation
independent coordinate
height projection plane
coordinate projection
