南极消费级无人机倾斜摄影测量精度分析OA

To addressing the issue of insufficient evaluation of absolute positioning accuracy in consumer-grade UAV photogrammetry under the sparse environment of Antarctic GNSS reference stations,this study takes the area around the Zhongshan Station in Antarctica as the experimental zone.Using the DJI Mavic 3 UAV equipped with a PPP module to capture oblique images,high-resolution 3D models,DOMs,and DSMs are generated.The absolute positioning accuracy of the products is systematically evaluated with and without constraints from six GCPs and twelve check points measured by high-precision GNSS RTK.The results indicate that after incorporating six ground control points for block adjustment,the RMSES of the photogrammetric control points for plane and elevation are reduced to 0.016 m and 0.056 m,respectively.The corresponding RMSES for the check points reached 0.069 m and 0.184 m,achieving centimeter-level accuracy.These findings offer a reliable technical reference for large-scale,high-precision geographic information acquisition in Antarctica.