HEMP作用下车辆附近电磁脉冲环境分析

在复杂电磁环境下的高强度的电磁脉冲会对其覆盖范围内的电子设备造成毁伤,从而导致车辆性能下降,甚至损坏。因此对电磁脉冲武器作用下车辆附近的电磁环境的研究就首当其冲。本文以最为成熟的高空核电磁脉冲（HEMP）为例,对其作用下的车辆电磁环境进行分析,仿真结果表明：地面附近的电磁场会随距地面高度的不同而发生显著的变化,但并不是呈线性变化;在达到电磁场强度峰值以前,电磁场强度幅值随着极化方向角度的增加均呈减小趋势,垂直极化的电磁场强度最大。

Analysis of Electromagnetic Environment Near Vehicles in High Altitude nuclear Electromagnetic Pulse

It will cause damage to electronic equipment by high altitude nuclear electromagnetic pulses in complex electromagnetic enviromnent which reduces the performance of vehicles or even destroyed. Therefore, the research of electromagnetic environment near vehicles under in electromagnetic pulse weapons is of vital importance. In this paper, the vehicle electromagnetic environment is analyzed in the most mature high altitude nuclear electromagnetic pulse. The sinmlation results show that： the electromagnetic field strength near the surface varies in different height but the change is not linearly. The electromagnetic field intensity is decreases as the angle of the polarization direction increases before the peak field strength. It reaches the maximum electromagnetic field strength in vertical polarization.