摘要
消费级无人机的普及使得海滩监测有新的选择,但不同无人机平台的监测精度与适用情景各异,有必要进行适用性评价。本研究利用两种无人机平台(精灵4 RTK、经纬M300 RTK)与两种地形监测技术(SFM摄影测量、激光雷达)在象山县大沙海滩进行海滩地形监测,计算低空无人机监测海滩地形的平面误差与高程误差,分析不同无人机平台准同步监测结果之间的差异及其原因;利用无人机监测结果分析大沙海滩的地形特征,讨论海滩地形冬季前后变化。分析结果显示,无人机平台能胜任高精度的海滩地形变化监测工作。
With the development of consumer-grade unmanned aerial vehicles(UAVs),new possibilities for beach monitoring are now available.However,different monitoring accuracies and suitability exist across different UAV platforms.We employed two UAV platforms,namely the DJI Phantom 4 RTK and DJI M300 RTK,in combination with two terrain monitoring techniques:Structure from Motion(SFM)photogrammetry and Light Detection and Ranging(LIDAR),to undertake beach terrain monitoring at Dasha Beach in Xiangshan County,Zhejiang,East China.The planimetric and elevation errors of low-altitude UAV measurements were assessed.Differences among the synchronously monitored results of diverse UAV platforms were analyzed,and their respective application scenarios were discussed.Additionally,we analyzed beach terrain characteristics and investigated beach terrain variations before and after winter.The analysis results show that the drone platform is capable of performing high-precision monitoring of beach topographic changes.
作者
陈奇
张阳
唐雯雯
朱永兰
何方婷
宗羿冰
贾建军
CHEN Qi;ZHANG Yang;TANG Wenwen;ZHU Yonglan;HE Fangting;ZONG Yibing;JIA Jianjun(State Key Laboratory of Estuarine and Coastal Research,School of Marine Sciences,East China Normal University,Shanghai 200241,China)
出处
《海洋地质与第四纪地质》
CSCD
北大核心
2023年第6期55-68,共14页
Marine Geology & Quaternary Geology
基金
自然资源部海洋空间资源管理技术重点实验室开放课题“岬湾型海滩的剖面与沉积物特征及其对建设生态岸线的意义”(KF-2021-104)
江苏省自然资源发展专项资金项目“江苏海岸带地质资源环境多要素监测网优化与动态监测”(2021046)。
关键词
海滩监测
SFM摄影测量
激光雷达
精度对比
beach terrain monitoring
structure from motion(SFM)photogrammetry
light detection and ranging(LiDAR)
accuracy comparison
作者简介
陈奇(2000-),男,硕士研究生,研究方向为河口海岸动力沉积地貌,E-mail:51213904001@stu.ecnu.edu.cn;通讯作者:贾建军(1973-),男,研究员,主要从事海岸带地貌动力过程与空间资源研究,E-mail:jjjia@sklec.ecnu.edu.cn。
