免像控无人机在河道大比例尺测图中的应用

Application of Non-GCPs UAV in large scale river mapping

针对河道带状复杂地形的高精度测量要求,以天狼星Sirius PRO无人机航测系统为研究对象,进行了汾河流域实地测量和精度比对。在免像控的条件下完成了测区范围内11000比例尺的DOM、DEM、DLG等一系列数据产品的生产制作,分析最终成果并进行精度比对。结果表明:11000大比例尺测图精度满足规范要求,效率明显提高的同时还能提供其他附加数字产品,为后续的设计施工提供丰富精确的数据支持。

In order to meet the requirement of high-precision measurement of complex river terrain,the Sirius PRO UAV aerial survey system was taken as the research object,and the field survey and accuracy comparison of Fenhe River Basin were carried out.Under the condition of Non-GCPs,a series of data products,such as DOM,DEM and DLG,with a scale of 1:1000 in the measuring area,were produced.The final results were analyzed and the accuracy was compared.The results show that:1:1000 large-scale mapping accuracy meet the requirements of specifications;the efficiency is significantly improved,while other additional digital products can be provided;the results can provide rich and accurate data support for the follow-up design and construction.