全球经纬度网格的雷达探测范围真三维建模

发布时间：2018-04-17 08:41

本文选题：雷达探测范围 + 真三维建模　；参考：《测绘科学》2017年06期

【摘要】：针对雷达探测范围会受到复杂地形因素影响,单一地依靠电磁传播模型可视化雷达探测区域很难真实有效地展现电磁覆盖情况的问题,该文提出一种基于GeoSOT-3D空间剖分的雷达探测范围的计算与表达一体化的真三维模型。GeoSOT-3D剖分框架将上至地球50 000km,下至地心的全部地球空间划分成多层次、多尺度空间体元,体元可承载多源异构空间数据。依据GeoSOT-3D的剖分流程,将地形数据、雷达探测空间数据离散化。最后,开发了雷达探测范围可视化验证平台。实验结果表明,该建模方法对复杂的地形适应性强,可视化表现效果真实直观。
[Abstract]:In view of the fact that the radar detection range is affected by complex terrain factors, it is difficult to visualize the electromagnetic coverage by relying solely on the electromagnetic propagation model.In this paper, a true 3D model, GeoSOT-3D subdivision framework, which integrates the calculation and representation of radar detection range based on GeoSOT-3D space division, is proposed, which divides the whole earth space up to 50 000 km and down to the center of the earth into multi-level and multi-scale spatial volume elements.Volume elements can carry multiple sources of heterogeneous spatial data.According to the division flow of GeoSOT-3D, the terrain data and radar detection spatial data are discretized.Finally, a visual verification platform for radar detection range is developed.The experimental results show that the modeling method has strong adaptability to complex terrain and the visualization effect is real and intuitive.
【作者单位】：北京大学遥感与地理信息系统研究所;北京大学工学院航空航天工程系;
【分类号】：P225.1

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