摘要
Abstract
RTK technology can provide centimeter-level high-precision positioning information in real timeto ensure the positional accuracy of unmanned vessels during the measurement process,thereby providing a reliable foundation for underwater topographic surveying in river channels.Unmanned vessels are small in size and highly maneuverable,and can autonomously switch control modes to conduct measurements in complex water areas such as shallow waters and narrow waterways.This overcomes the limitations of traditional measurement methods in these areas and effectively solves the problems of low safety,difficult implementation,inaccurate data collection,and complex data processing in traditional underwater surveying.This paperfirst introduces the principles and technical processes of RTK technology and unmanned vessel measurement systems;secondly,by combining with project examples,it elaborates on the specific application of unmanned vessel measurement systems in river channel surveying and the key steps of data processing;and through on-site detection and the method of laying out inspection lines,it verifies that the unmanned vessel measurement system meets the requirements of river channel surveying,and the sounding accuracy meets the specification requirements,providing accurate and reliable basic data for subsequent river channel governance.Finally,the paperanalyzes some limitations existing in the actual operation of unmanned vessels to further improve the accuracy and efficiency of underwater topographic surveying.关键词
RTK实时定位技术/无人船系统/河道水下地形测量/数据处理/无人船测量系统Key words
RTK real-time positioning technology/unmanned vessel system/underwater topographic survey of river channels/data processing/unmanned vessel survey system分类
交通工程
