无人船测量系统在河道水下地形测量中的应用

Application of unmanned ship survey system in underwater terrain survey of river channel

为减少河道水下地形人工涉水测量的误差和风险,提升测量精度和测量效率,文章基于徒骇河水下地形测量工程实例,对河道水下地形测量中无人船测量系统的应用展开研究。首先阐述徒骇河的河道自然地理情况和工程特点,然后从无人测量船系统架构、作业流程、测深时间延迟三方面说明基于无人测量船的河道水下地形测量方法,最后通过深度互差统计和地形图精度验证的方法,验证无人船测量系统在实际河道水下地形测量中具有测深误差小、地形图精度高、测量稳定的应用优势。

In order to reduce the error and risk of manual wading survey of underwater topography of river channel,and improve the accuracy and efficiency of survey,this paper studies the application of unmanned vessel survey system in underwater topographic survey of river channel based on the Tuhai underwater topographic survey project.Firstly,the natural geographical conditions and engineering characteristics of Tuhai River are described,and then the structure,operation process the underwater topographic survey method of river channel based on the unmanned survey ship is illustrated in three aspects of the time delay of sounding.Finally,through the method of depth mutual difference statistics and the accuracy verification of topographic map,it is verified that the unmanned survey system has the application advantages of small sounding error,high accuracy of topographic map and stable measurement in the actual underwater topographic survey of river channel.