摘要
如何评定经纬仪水平角观测的精度 ,探求按菲律罗公式计算的测角中误差与各测站平差后单位权方向中误差的平均值和不同测回数之间合适的数学表达式 ,是三角测量中具有实际意义的重要研究课题。本文根据 2 3个高精度短边三角网和 3个城市二等网的实测资料统计结果 ,对有关经验估算公式 ,系统与偶然误差的分析、检验、影响比例和最适宜测回数等进行了研究。
How to assess the accuracy observed from horizontal angle by theodolite and how to search for the average MSE between the MSE of angular observations calculated by Felalo formula and the MSE of unit weigh for each station after adjustment,as well as how to find the suitable mathematics expression in different sets should be an important subject in trigonometrical survey.The statistical data in this paper are obtained from the measured value in 23 higher precision short side triangulation networks and the secondary triangulation networks in 3 cities,in which study of the formula for experience estimation,analysis of the systematic and accidental error,and inspection of the factors in influence proportion and the most suitable set are conducted.
出处
《工程勘察》
CSCD
北大核心
2005年第3期46-49,65,共5页
Geotechnical Investigation & Surveying
关键词
经纬仪水平角观测精度
数学表达式
系统误差影响系数
最适宜测回数
accuracy observed from theodolite horizontal angle
mathematics expression
systematic error influence coefficient
most suitable sets
