摘要
针对传统测量方式在洲滩地形测量中存在效率低、精度低、安全性差等缺点,为开展长江下游洲滩地形测量工作,采用了无人机机载LiDAR测量系统对民主沙地形进行了快速扫测,经过内业处理获取了测区高精度点云数据,最后结合不同植被覆盖区的检查点进行了精度评定及误差分析。应用结果表明:无人机机载LiDAR测量系统在小范围、人工走测困难区域的地形测量具有快速、高精度的优势,可快速了解洲滩变迁情况,为航道整治工程效果评估提供依据。
According to the traditional way of topographic survey was inefficiency,low precision and poor safety,in order to carry out topographic surveying of marshland on lower reaches of the Yangtze River,UAV airborne LiDAR system was used to carry out terrain scanning application on Minzhu sand terrain.The high-precision point cloud data of the survey area were obtained through the indoor processing.Finally,the accuracy evaluation and error analysis were carried out combining with the field inspection points of different vegetation coverage areas.The application results show that the UAV airborne LiDAR system has the advantages of fast and high precision in small area and difficult manual walking survey area,which can quickly understand the changes of marshland,so as to provide basis for the effect evaluation of waterway regulation project.
作者
杨俊凯
颜惠庆
YANG Jun-kai;YAN Hui-qing(Shanghai Waterway Engineering Design and Consulting Co.,Ltd.,Shanghai 200120,China)
出处
《中国港湾建设》
2021年第9期42-45,共4页
China Harbour Engineering
作者简介
杨俊凯(1990—),男,江苏盐城人,硕士,工程师,主要从事港口、航道勘察测量工作。E-mail:505960112@qq.com。
