摘要
本文通过分析大气密度与大气垂直折光系数的关系 ,推导出消除了大气垂直折光影响的天顶距和斜距计算公式 ,既拓宽了天顶距的适用范围 ,又提高了三角高程测量成果精度。
The thesis elicits two equations by analysing the relations between the coefficiency of aerial refraction and atmosphere density. Then the zenith distance and slope distance can be worked out even if the effects of erect refraction of atmosphere does exist, thus extending the adaptability of zenith distance and enhancing its accuracy in trigonometrical leveling.
出处
《四川测绘》
2000年第2期87-89,共3页
Surveying and Mapping of Sichuan
关键词
三角高程测量
天顶距
斜距
计算
高程测量
trigonometrical leveling
zenith distance
slope distance
computation
