摘要
在利用地心坐标完成从雷达站球面坐标到指挥中心直角坐标的转换中,当考虑到地球自转、地形因素及重力作用时,所采用的地球模型与地球实际水准面并不重合,坐标系的坐标轴与实际之间存在着垂线偏差。在对上述因素进行分析的基础上,找出了一种修正偏差的方法,并给出了其计算过程,对提高防空系统的坐标转换精度具有重要意义,对于以后大型分布式系统的进一步研究具有借鉴作用。
In the course of the transform from spherical surface coordinates of radar's station to right-angle coordinates of the command center fulfilled by the earth-centered coordinate, when the rotation of the earth and the factor of topography and the function of the gravity are considered. The model of the earth and the level surface of the earth are not a one. The coordinate axis and the reality lies the vertical warp. On the base of the analysis of the above factor, a method of error mending is found, and the course of the computing is given, it has a great sense on the improving the precision of the transform and has a use for reference for the further research on the large scale of the distributed system.
出处
《空军工程大学学报（自然科学版）》
CSCD
2003年第3期44-46,共3页
Journal of Air Force Engineering University(Natural Science Edition)
基金
国家高等学校骨干教师资助计划首批资助项目(GG-810-90039-1004)
关键词
坐标变换
防空系统
地心坐标
coordinate transformation
air-defense system
earth-centered coordinate
