摘要
在电磁波测距高程导线,四等和一、二级电磁波测距导线等常规控制测量作业中,高差计算、水平距离的参考椭球面归算以及参考椭球面边长的高斯平面改化计算均与地球曲率半径有关。通过探讨地球曲率半径取值精度对控制测量精度的影响,以满足控制测量精度要求为前提,得出地球曲率半径取值精度的统一认识。
In work of conventional control survey, such as electromagnetic distance measurement height traverse, fourth order and 1-2 class electromagnetic distance measurement traverse, the calculation of altitude difference and the horizontal distance reduction on the surface of reference ellipsoid and Gauss plane, are related to the earth curvature radi- us. Through discussing the influence earth radius value precision to control survey precision to meet the required control survey precision as the prerequisite, work out the unified cognition about the earth curvature radius precision.
出处
《地矿测绘》
2012年第4期27-28,31,共3页
Surveying and Mapping of Geology and Mineral Resources
关键词
地球曲率半径
控制测量
精度
earth curvature radius
control survey
precision
