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雷达作用范围和遮蔽盲区的快速计算和三维可视化是复杂电磁环境研究的重要内容。基于抛物方程建立了雷达探测范围的数学模型,对于三维地形遮蔽雷达作用范围形成的盲区,采用碰撞检测方法进行估算,并利用图形硬件(GPU)的加速功能实现了盲区估算的快速算法。实践证明,快速计算雷达的地形遮蔽盲区可以为用户决策提供支持,具有重要的工程应用价值。
Radar coverage and shadow blind area of the rapid calculation and three-dimensional visualization of complex electromagnetic environment is an important part of the study. A mathematical model of radar detection range was established based on parabolic equation. The dead zone formed by the scope of 3D terrain shadowing radar was estimated by using collision detection method. A fast algorithm of blind area estimation was implemented by using the acceleration function of graphics hardware (GPU). Practice has proved that rapid calculation of radar terrain shadow blind area can provide users with decision-making support, and has important engineering application value.