Application of Airborne Laser Radar in Topographic Mapping
Airborne laser radar(with photogrammetry)can quickly and efficiently obtain digital elevation model(orthophoto map),extract and produce a variety of surveying and mapping results.Based on the working principle,technical characteristics,survey steps and accuracy statistics of airborne lidar,this paper introduces how to use this technology to carry out topographic surveying and mapping,so as to improve the quality of topographic surveying and mapping design,which is of great practical significance to shorten the period of field surveying and mapping,reduce the difficulty and cost of survey,and ensure the safety of personnel.It can provide experience for the application of airborne lidar in topographic surveying and mapping,and improve the overall quality of topographic surveying and mapping in China.