机载LiDAR多脉冲模式在山区数据采集中的应用

Application of Airborne LiDAR Multi Pulse Mode in Mountain Data Acquisition

机载激光雷达单脉冲作业模式在地形起伏较小的地区得到了很好的应用,但在地形起伏大的地区受到地形的影响作业效率偏低。机载激光雷达多脉冲模式则可以以更高的高度采集高精度的点云数据,降低地形起伏带来的影响。本文介绍了一种机载激光雷达多脉冲多频率作业模式在山区地形数据采集中的应用,阐述了多脉冲模式工作原理及优势。通过工程应用中的精度分析确定了多脉冲多频率模式在山区数据采集的可行性。

The single pulse mode of airborne lidar has been applied well in the regions with small topography,but it is affected by the terrain in the area where the topography fluctuates greatly.Airborne lidar multi-pulse mode can capture high-precision point cloud data at a higher altitude and reduce the impact of terrain relief.This paper introduces the application of multi-pulse multi-frequency operation mode of airborne lidar in mountainous terrain data acquisition,and expounds the working principle and advantages of multi-pulse mode.The feasibility of multi-pulse multi-frequency data acquisition in mountainous areas was confirmed through the accuracy analysis of engineering applications.