摘要
研究目的:机载激光雷达技术作为一项新型航空测量技术,在国内外多个行业内已经得到了较为广泛的应用研究。但是现阶段各行业内,包括应用于铁路勘察方面,尚未形成成熟的应用模式。因此,一方面加深新技术在铁路勘察中的应用研究,另一方面在推动新技术发展应用的同时,及时加深梳理过程中发现关键问题都是十分必要的。研究结论:通过对激光雷达在工程应用过程中发现的几个关键问题分析认为:认真总结工程实例,确定机载激光雷达传感器在我国地形条件下的参数设置;结合具体工程,熟练掌握适合于铁路应用的点云分类方法与标准;通过本文提到的机载激光雷达成果精度的验证方法完成对机载激光雷达成果的精度验证;在工程应用前将基于UTM系统下的机载激光雷达观测成果通过投影转换纳入工程坐标系获取地理信息成果是能够满足铁路勘察设计、施工需要的。
Research purposes： As a new aerial survey technique,the airborne LIDAR technology has been widely researched and applied in many industries at home and abroad.However,a mature applied mode has not yet formed in various industries,including railway survey at present.So it is necessary to do deeper research on application of this new technology in railway survey and timely sort the key problems in application found in the research for promoting the development and application of this new technology.Research conclusions：Several key issues of airborne LIDAR applied in railway survey are analyzed.Applications of airborne LIDAR in railway survey are conscientiously summed up,the parameters of airborne laser sensor in the condition of China＇s terrain condition are determined.And fully combined with specific projects,method and standard of point cloud classification for railway survey is mastered,accuracy authentication of airborne LIDAR result can be done through the authentication method of result precision of airborne LIDAR mentioned in the paper,observational result of airborne LIDAR based on UTM system through protection into engineering coordinate to get the geographical information system can meet the requirement of railway survey and design before the project application.
出处
《铁道工程学报》
EI
北大核心
2010年第10期11-14,共4页
Journal of Railway Engineering Society
