摘要
通过机载激光雷达测量技术在环北广西工程等多个复杂山区水利工程测量中的实践与研究,在平面和高程上,其数据精度的较差绝对值均以≤0.10 m为主,占比分别为89.0%(X方向)、90.0%(Y方向)、93.0%(Z方向)、63.0%(XY方向),平面和高程中误差分别为±0.035 m(X方向)、±0.036 m(Y方向)、±0.033 m(Z方向)、±0.050 m(XY方向),满足1∶500、1∶1000地形图数据精度要求。机载激光雷达测量相较于人工测量节约了大量人力成本,节约时间84.3%,工作效率得以大幅提升。
According to the practice and research results of applying airborne LiDAR measurement technology for multiple water conservancy projects in complex mountainous areas,including Guangxi Water Resources Allocation Project Around Beibu Gulf,the absolute values of the difference in both plane and elevation are mainly≤O.1Om,accounting for 89.0%(X direction),90.0%(Y direction),93.0%(Z direction),and 63.0%(XY direction),respectively;the plane and elevation mean errors are±0.035m(X direction),±0.036m(Y direction),±0.033m(Z direction),and±0.050m(XY direction),respectively,meeting the data accuracy requirements of 1:500 and 1:1000 topographic map.Compared with manual measurement,airborne LiDAR measurement saves a lot of manpower costs,saves 84.3%of time,and greatly improves work efficiency.
作者
王荣志
毕研群
WANG Rong-zhi;BI Yan-qun(Guangxi Water&Power Design Institute Co.,Ltd.,Nanning 530023,China)
出处
《广西水利水电》
2025年第6期37-41,共5页
Guangxi Water Resources & Hydropower Engineering
关键词
机载激光雷达测量技术(LiDAR)
复杂山区
水利工程
测量精度
airborne LiDAR measurement technology
complex mountainous area
water conservancy project
measurement accuracy
