摘要
目前,水下地形数据获取主要依赖于大型船只搭载多波束测深仪或单波束测深仪进行水下测量。由于船只吃水等原因,这种作业模式在近岸、浅滩、岛礁及一些危险区域,存在测量盲区,且作业效率较低,数据精度不高。本文以辽宁某河水下地形测量工程项目为例,详细的介绍了搭载单波束测深仪的无人测量船的工作原理,以及无人测量船利用LNCORS系统对该河流进行无验潮水下地形测量的工作流程和具体优势,并对测量数据作出具体分析得出无人船测量在水下地形测量中具有精确、便捷、安全和测量区域全覆盖等特点。
At present,underwater terrain data acquisition is mainly dependent on large ships carrying multi-beam depth sounder or single-beam depth sounder for underwater measurement.Due to the draft of the vessel and so on,this mode of operation in the near shore,shoal,island reef and some dangerous areas,there is a blind spot,and the operating efficiency is low,the data accuracy is not high.In this paper,a river underwater terrain survey project in Liaoning Province as an example,a detailed description of the single beam depth sounder equipped with unmanned ship working principle,and unmanned measuring ship using LNCORS system for the river without tide underwater terrain measurement.And the concrete analysis of the measured data shows that the unmanned aerial survey has the characteristics of accurate,convenient,safe and full coverage of the measurement area under the underwater topography.
出处
《北京测绘》
2017年第4期69-72,共4页
Beijing Surveying and Mapping
