摘要
介绍了天球的基本概念,对比分析了岁差、章动和极移等地球自转轴的运动,着重对几种坐标系相互之间的关系进行了探讨,以实现任意坐标系任意时刻之间的转换,为空间定位奠定了基础。
This paper introduced the basic concept of celestial sphere, comparative analyzed the movement of precession, nutation and polar shift and other earth rotation axis, emphatically discussed the relationship between several coordinate systems, in order to realize the conversion of any coordinate time, laid foundation for spatial localization.
出处
《山西建筑》
2013年第16期206-207,共2页
Shanxi Architecture
关键词
天球坐标系
地球坐标系
岁差
章动
极移
celestial coordinate system, earth coordinate system, precession, nutation, polar shift