测绘科学技术学报2025，Vol.41Issue(4)：388-393,401,7.DOI:10.3969/j.issn.1673-6338.2025.04.008
广州城市CORS在无人机免像控航测中的应用
Application of Guangzhou Urban CORS in Control-free Aerial Survey of Unmanned Aerial Vehicle
摘要
Abstract
GNSS/IMU-assisted aerial triangulation can significantly reduce the requirement for the number of ground control points(GCPs).High-precision POS(position and orientation system)can enhance the accuracy of aerial triangulation results,which is a crucial factor in UAV(unmanned aerial vehicle)photogrammetry without image control.In the absence of high-precision POS technology,a certain number of GCPs are still required,which decreases the efficiency of UAV photogrammetric mapping.In this paper,high precision real-time RTK tech-nology is combined with UAV photogrammetry,and Guangzhou Urban CORS(continuously operating reference sta-tions)is used to improve the accuracy of airborne POS,and a method of photogrammetric technique without image control or very few image control points is discussed.Through the project experiments and accuracy analysis,a rap-id photogrammetric methodology that can meet the accuracy requirements of relevant specifications for large-scale mapping is obtained,which reduces the workload of internal and field work and effectively improves the efficiency of the whole process of UAV photogrammetric mapping.关键词
GNSS/IMU组合系统/POS系统/免像控航测/广州城市CORS/大比例尺测图Key words
GNSS/IMU/POS system/control-free aerial survey/Guangzhou urban CORS/large-scale mapping分类
测绘与仪器引用本文复制引用
蓝楚强,吴伟,莫永强..广州城市CORS在无人机免像控航测中的应用[J].测绘科学技术学报,2025,41(4):388-393,401,7.基金项目
湖南省重点研发项目(2021SK2048). （2021SK2048）
