摘要
(土木工程系)本文从生产实践中普遍采用的计算大气竖直折光系数的公式出发,推导出计算折光系数中误差的半经验半理论公式,并举例说明了使用方法,比已有的方法简便实用.提出了提高 EDM 测高精度的具体措施,对生产实践有参考价值.
Baaed on the formulae of Calculating atmospheric verticalrefraction coefficient,a semi-experiential,semi-theoreticalformula is derived for estimating mean square error of refractioncoefficient in this paper.Moreover,the method of applyingthis formula is illustrated by example and concrete measures toenhance the accuracy of trigonometric leveling with EDM arealso proposed.
出处
《长沙铁道学院学报》
CSCD
1992年第4期74-79,共6页
Journal of Changsha Railway University
关键词
电磁波测距
高层大气
高程测量
eletro-magnetic distance measurement,atmospheric refraction coefficient,trigonometric leveling
