虚拟战场环境中地形影响下雷达作用范围表现

Research on Representation of Radar Coverage in Virtual Battlefield Environment Considering Terrain Effect

地形、海洋、气象等环境影响下雷达电磁信息的三维表现是未来数字化虚拟战场环境不可回避的问题。以自由空间中雷达作用范围的三维表现为基础,从虚拟战场环境中获取地形高程数据,利用几何光学法研究了单峰对雷达作用范围的影响,依此给出了地形影响下雷达的三维作用范围表现算法。该算法同样适合于山峰衍射的情况。在将典型雷达嵌入到虚拟战场环境的实验中,允许交互调整雷达和目标参数,实时形象动态的展示了地形影响下雷达的三维作用范围,为用户决策提供支持。

The 3D representation of Radar electromagnetic information affected by terrain, ocean and weather is a crucial problem in the future Digital Virtual Battlefield Environment （DVBE）. Based on the 3D representation of Radar coverage in free space, according to the terrain elevation around the Radar, the influence of a single peak was investigated, and then an algorithm was proposed to represent the 3D Radar coverage affected by terrain. This algorithm is also applicable for peak diffraction. In the experiment of embedding a typical Radar into DVBE, parameters of Radar and target could be adjusted interactively, and the 3D Radar coverage affected by terrain was vividly and dynamically visualized in real time, which could provide excellent decision supporting for users.