摘要
基于无人机摄影测量技术,本文对甘肃省武威市凉州区河流确权划界项目进行了1∶2000带状地形图测绘,获取了河流区域高精度地形图。与RTK测图成果比对,发现平面精度、间距精度和高程精度符合规范要求,且平面误差、间距误差和高程误差在平地、丘陵和山地具有相同的高精度符合率,证明无人机地形测量具有较好的精度稳健性。通过误差分析,发现三类误差呈正态分布,表明无人机测绘系统误差已得到有效控制,可以作为传统地形测量的一种快速可靠的补充手段。
Based on UAV photogrammetry technology,the 1∶2000 scale strip topographic map of the river right confirmation project is surveyed and mapped in Liangzhou district,Wuwei city,Gansu province,and the high-precision topographic map of the river area was obtained.Compared with RTK mapping results,it shows that the plane accuracy,spacing accuracy,and elevation accuracy meet the requirements of specifications.The plane error,spacing error,and elevation error have the same high accuracy coincidence rate in flat,hilly,and mountainous areas,which proves that UAV topographic survey has better accuracy and robustness.Through error analysis,three types of errors are found to be normal distribution,which indicate that the systematic errors of UAV surveying and mapping have been effectively controlled.The UAV surveying and mapping can be used as a fast and reliable supplementary means of traditional topographic survey.
作者
骆成才
LUO Chengcai(Gansu Water Conservancy and Hydropower Survey and Design Research Institute Co.,Ltd.,Lanzhou 730000,China)
出处
《测绘与空间地理信息》
2020年第11期187-190,共4页
Geomatics & Spatial Information Technology
