中文摘要：

利用时域有限差分法(FDTD)对雷达波在二维大气等离子体中传播的反射率进行了数值计算.计算结果表明,在其他条件相同的情况下,大气平板型分布的等离子体层对雷达波的反射率分别取决于入射波参数:电磁波的入射角θ;电磁波入射波频率f;电磁波传播模式(TM波,TE波)以及等离子体参数;等离子体的电子密度剖面;电子与中性粒子碰撞频率νe0;等离子体厚度d.该研究结果为提高组合介质的雷达波衰减性能研究提供理论依据.

英文摘要：

The finite-difference-time-domain(FDTD) method was applied to calculate the reflectivity of the radar wave in the two-dimensional atmospheric pressure plasma(APP).The numerical results indicate that,under give circumstance,the reflectivity property of radar wave in the flat plate APP dependent on the following parameters: the incident wave parameters(the incident angle θ,the incident frequency fand the polarized mode(TM mode,or TE mode) and plasma parameters: the electron density profile,the collision frequ...