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机载LiDAR在大比例尺地形图测绘中的应用分析

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针对传统大比例尺地形图测量方式中存在精度低、效率低、无法全天候等缺点,为开展工程中大比例尺地形图测量工作,采用无人机机载LiDAR测量系统对测区进行了快速扫测,经内业处理数据,最后结合测区已有地形图进行对比分析.实验结果表明:无人机机载LiDAR测量系统在山区、植被覆盖较密的地形测量中具有快速的优势,且测量数据满足大比例尺地形图精度要求,同时也为未来空天地一体化快速测量大比例尺地形图思路提供借鉴.
Application Analysis of Airborne LiDAR in Large-scale Topographic Mapping
In view of the shortcomings of traditional large-scale topographic map measurement methods, such as low precision, low ef-ficiency and inability to measure all-weather, in order to carry out large-scale topographic map measurement in the project, UAV air-borne LiDAR measurement system is used to quickly scan the survey area, process the data in the office, and finally compare and ana-lyze the existing topographic maps in the survey area. The experimental results show that the UAV airborne LiDAR measurement sys-tem has the advantage of fast topographic survey in mountainous areas with dense vegetation coverage, and the measurement data meet the accuracy requirements of large-scale topographic map. At the same time, it also provides reference for the idea of rapid measure-ment of large-scale topographic map in the future.

LiDARlarge-scale mappingtopographic surveyUAV oblique measurement

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甘肃省地质矿产勘查开发局测绘勘查院,甘肃兰州 730064

LiDAR 大比例尺测绘图 地形测量 无人机倾斜测量

2024

测绘与空间地理信息
黑龙江省测绘学会

测绘与空间地理信息

影响因子:0.788
ISSN:1672-5867
年,卷(期):2024.47(4)
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