CAJ | 학술논문

机载LiDAR技术获取地面三维地物信息快捷、高效，近年来发展迅速，应用广泛。介绍了无人机雷达技术的航测技术流程，结合山洪灾害调查评价的应用需求，论述了激光点云数据的分类方法，数字高程模型（DEM）制作方法，河道断面批处理方法，居民户位置和高程的自动提取方法等应用关键技术，并以栾川县2个山洪灾害典型小流域为例，开展了示范应用。研究表明，无人机激光雷达测量技术获取数据速度快、精度高，能够满足山洪灾害调查的工作要求，为全国无资料地区山洪灾害调查工作提供了新技术的应用示范，将在全国山洪灾害调查工作中发挥巨大作用，具有较大的应用前景。
궤재LiDAR기술획취지면삼유지물신식쾌첩、고효，근년래발전신속，응용엄범。개소료무인궤뢰체기술적항측기술류정，결합산홍재해조사평개적응용수구，논술료격광점운수거적분류방법，수자고정모형（DEM）제작방법，하도단면비처리방법，거민호위치화고정적자동제취방법등응용관건기술，병이란천현2개산홍재해전형소류역위례，개전료시범응용。연구표명，무인궤격광뢰체측량기술획취수거속도쾌、정도고，능구만족산홍재해조사적공작요구，위전국무자료지구산홍재해조사공작제공료신기술적응용시범，장재전국산홍재해조사공작중발휘거대작용，구유교대적응용전경。
In recent years, the airborne Lidar is widely applied due to its ability to quickly obtain the third degree ground terrain information with efficiency and accuracy. Using UAV laser radar measurement technique, this research acquired flash flood data in two typical smal watersheds of Luanchuan County and introduced the process of the technique. Considering requirements of flash flood disaster evaluations, this paper detailed various methods including classification of laser point cloud data, DEM production, data processing technique of river cross-sections, and key technology of the automatic extraction of houses location and elevation. UAV laser radar technology features rapid data acquisition speed and high precision; it can meet the requirements of flash flood disaster investigations and provides the application demonstration of this technology. Consequently, this technique wil play an important role in investigation of flash flood disasters and have great application prospect.