【摘要】 基于无人船测量获取的水下地形三维点云数据来实现水下地形建模具有重要意义。介绍了无人船主要结构及工作原理，并利用无人船对某一沉陷水域进行测量，随后利用ArcGIS软件中3D Analyst工具进行水下进行建模实践，并创建TIN,通过插值法转换成栅格数据，随后，在ArcSence软件中进行沉陷水域水下地形三维可视化显示。实验结果表明，采用水下建模方法效果较好。更多还原

【Abstract】 It is of great significance to realize underwater terrain modeling based on the underwater three-dimensional coordinate data obtained by the unmanned ship. The paper introduces the main structure and working principle of the unmanned ship, uses the unmanned ship to measure an experimental body of water, and then conduct underwater modeling based on the 3D Analyst tool in ArcGIS software. Using the 3D Analyst tool in ArcGIS software, TIN can be created and converted into raster data by interpolation method. At last, it was supplemented by ArcSence software for 3D display. The experimental results show that the underwater modeling method introduced in the paper is effective.更多还原