机载激光雷达技术在复杂地形土石方测量中的应用  

Application of Airborne LiDAR in Earthwork Calculation in Complex Terrain

作　　者：凌晨阳 余盛艳 陈科玚 Ling Chenyang;Yu Shengyan;Chen Kechang(Ningbo Institute of Surveying and Mapping,Ningbo 315000,China)

机构地区：[1]宁波市测绘设计研究院,浙江宁波315000

出　　处：《城市勘测》2020年第5期125-128,共4页Urban Geotechnical Investigation & Surveying

摘　　要：针对传统土方测量方法在面对复杂地形状况时存在的不足,采用了机载激光雷达快速精准测量复杂地形的方法。利用机载激光雷达对复杂地形进行扫描得到原始数据,结合高精度组合惯导数据解算以获取点云数据,再通过点云分类、点云抽稀,获取目标区域原始地面高密度、高精度的高程点数据,作为土石方计算的重要原始数据。采用网络RTK方法对机载激光雷达点云数据进行精度评价,对比分析得出利用机载激光雷达测量复杂地区的土石方的方法能够满足相关精度要求,具有很大的应用前景。In view of the deficiency of traditional earthwork measurement method in complex terrain,airborne LIDAR is used to quickly and accurately measure complex terrain.The airborne LiDAR is used to scan complex terrain to collect the point cloud data,and by using the high precision combined INS solution and LAS point cloud data solution obtain the point cloud data.Then,the point cloud is classified and simplificed to obtain the high-density and high-precision elevation point data of the original ground,which can be used as the important original data of earthwork calculation.The method of Network RTK for airborne LiDAR to measure earthwork in complex terrain can meet the relevant requirements of earthwork measurement accuracy and it has great application prospect.

关 键 词：机载激光雷达(LiDAR) 复杂地形 土石方 点云数据 

分 类 号：P225.2[天文地球—大地测量学与测量工程] P258[天文地球—测绘科学与技术]