实时界定雷达电磁互扰区域的三维可视化方法

3D visualization method on real-time division of radars mutual electromagnetic interference

为了便于多方位、多角度观察和分析舰艇编队中雷达电磁互扰的区域,利用等值面的分界特性,通过使用能流密度和干扰余量来表现舰艇编队中雷达电磁互扰的程度,提出使用递进式栅格采样的极值八叉树快速重构等值面的方法,还提出使用等值面差别显示的方法建立实时交互的三维显示图和俯视、前视、侧视的动态切面图,来动态显示舰艇编队雷达电磁互扰的仿真结果。通过对6艘舰艇共16部单脉冲雷达的仿真,实验结果表明该方法可行、有效。该方法还可以应用到其他电磁环境的实时三维可视化中,也可以应用在研究和预防无人机被雷达电磁干扰的三维仿真中。

In order to observe and analyze the space of mutual electromagnetic interference from different aspects and perspec- tives ,this paper took advantage of the characteristics of the boundaries of the isosurface to divide the radars mutual electromag- netic interference space. It measured the degree of the radars mutual electromagnetic interference by energy flux density and in- terference margin in the warship formation. And it used a progressive grid sampling extremum octree to reconstruct the isosur- face quickly. It employed the differential display mode of the isosurface to create a real-time interactive 3D chart with a top view,a front view and a side view,while displaying the simulation results of the radars mutual interference in the warship for- mation dynamically. This paper simulated 6 ships with 16 single-pulse radars to interfere each other. The result shows this method is feasible and effective. It can be applied to the real-time 3D visual simulation of the electromagnetic environment of the electromagnetic interference in the large scene. It can also be used in the 3D visual simulation of the UAV radar electro- magnetic interference research and prevention.