某铝土矿低空无人机遥感测绘成果精度分析

对于分布散、范围大的铝土矿区,传统测量手段及时获取满足精度要求的矿区测绘资料具有一定难度。采用低空无人机遥感技术,能够快速提供矿山建设所需要的数字线划图、数字高程模型及数字正射影像,实现矿山的数字化与信息化建设。结合某铝土矿测绘面积大、矿区地物要素较少的测绘特征,通过无人机影像快速空三加密以及DLG,DEM,DOM的制作技术,获得低空无人机遥感测绘成果。通过对解析空三加密点精度分析和GPS实测点检查,表明测绘成果满足1∶2 000测图精度要求。

Precision analysis of low-altitude UAV remote sensing mapping results in the bauxite

For the distribution of scattered ,large‐scale bauxite area ,it is hard for traditional measurements to have timely access to the mine surveying and mapping data w hich can meet the accuracy requirements . The low‐altitude UAV remote sensing technology is proposed to provide rapid DLG ,DEM and DOM for mine construction in order to complete the digital and information construction of the mine . T he paper combines the characteristics of a large bauxite area ,and less feature elements of mine with the UAV images quickly air triangle encryption and DLG ,DEM ,DOM production technology ,to have access to low‐altitude UAV remote sensing and mapping results .Through the theoretical analysis of data precision adjustment and GPS actual accuracy analysis ,it shows that mapping results comply with the 1∶2 000 mapping accuracy .