人民长江Issue(16)：60-62,72,4.
影响航测高程精度的关键因素分析与探讨
Analysis and discussion on key influential factors of aerial survey elevation accuracy
沈方雄 1刘祥发 1刘幼华 1陈汉文1
作者信息
- 1. 湖北省水利水电规划勘测设计院，湖北 武汉430064
- 折叠
摘要
Abstract
In large-scale elevation measurement by aerial survey, due to influences of multiple factors, the measurement ac-curacy often can not meet the code requirement. In the combination of the characteristics of aerial photogrammetry, the main fac-tors influencing elevation measurement accuracy are analyzed and the problems to be paid attention from photogrammetry to indoor work are pointed out. Based on analysis results, the methods for improving the measurement accuracy are put forward, and it is considered that the effective measures for improving the elevation measurement accuracy are selecting right camera, controlling flying quality, optimizing image control design and increasing aerial triangulation density, etc. The measurement case shows that the adoption of the above mentioned measures can make the measurement accuracy meet the code requirement.关键词
高程航测精度/空三连接点/相机选择/像控/内定向Key words
elevation accuracy of aerial survey/connection of aerial triangulation/camera selection/image control/interior o-rientation引用本文复制引用
沈方雄,刘祥发,刘幼华,陈汉文..影响航测高程精度的关键因素分析与探讨[J].人民长江,2014,(16):60-62,72,4.
