Application of unmanned ship survey system in underwater terrain survey of river channel
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.
underwater topography of rivertopographic surveyunmanned vessel survey
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