机载激光雷达在山区地形图测绘中的应用研究

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摘  要:阐述机载激光雷达(LiDAR)的组成及误差来源,通过广西高速公路勘测中地形图测绘案例实践,介绍LiDAR测图实施过程及关键方法,通过研究植被等因素对数字地面模型精度的影响规律分析,验证LiDAR在大比例尺地形图测制中的技术可行性。

关键词:机载激光雷达;精度分析;植被覆盖;大比例尺地形图;测绘

中图分类号:TN958      文献标志码:A          文章编号:2095-2945(2023)01-0026-04

Abstract: This paper describes the composition and error sources of airborne LiDAR. Through the practice of topographic map surveying and mapping in Guangxi highway survey, the implementation process and key methods of LiDAR survey are introduced. By studying the influence of vegetation and other factors on the accuracy of digital ground model, the technical feasibility of LiDAR in the measurement of large scale topographic maps is proposed.

Keywords: airborne LiDAR; accuracy analysis; vegetation coverage; large scale topographic map; mapping

我国公路建设飞速发展,公路的勘察与设计的任务逐年增加,而道路勘测周期短、地形复杂,勘测难度大;传统测量技术手段在公路勘测中效率不高等问题日益凸显;如何快速高效获取高精度、海量信息的地形数据成为制约道路勘察设计亟需解决的问题,而机载激光雷达扫描测量技术的应用较好地解决了这一难题。(剩余5474字)

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