机载LiDAR技术支持下的荒漠地区1:10 000地形图测绘与研究——以内蒙古阿拉善地区为例

尝试应用机载LiDAR技术测绘1：10 000比例尺地形图3D（DLG、DEM、DOM）产品，给出了机载LiDAR测绘3D产品的技术流程，并选择荒漠地区作为试验区，验证了此种技术方法在荒漠地区测绘3D产品的可行性，分析了成果精度。试验证明，该方法可以满足荒漠区域的1：10 000比例尺3D基础数据生产要求，且具有外业工作量小、自动化程度高、成图快、高程精度高、受外界环境影响小等优点，同时也总结了该方法中有待完善之处。该方法为荒漠地区3D基础测绘数据获取提供了有益借鉴。

Mapping and research of 1: 10 000 topographic map in desert area based on airborne LiDAR technology: an example for Alxa,Inner Mongolia

In recent years, airborne LiDAR technology has been applied to power, forestry, surveying and mapping and so on. Compared with optical image, LiDAR point cloud data has unique advantages in surveying and mapping. This paper attempts to use airborne LiDAR technology to survey and map 1:10 000 scale 3D (DLG, DEM, DOM) products, summarizes the technological process and precision analysis method of airborne LiDAR 3D products, and selects desert areas as experimental areas to verify the feasibility of this technology in desert areas to produce 3D products. The method can satisfy the requirement of 1:10 000 scale 3D basic data production in desert area, and has the advantages of small outdoor workload, high automation, fast mapping, high elevation accuracy, and small environmental impact. At the same time, the method is also summarized. This method provides a useful reference for the acquisition of 3D basic surveying and mapping data in desert areas.