导体平面覆盖抛物线分布不均匀等离子体的FDTD分析  

A Novel FDTD Simulation of Conductive Plane Covered with Parabolic Profile Inhomogeneous Plasma

作　　者：刘少斌[1] 莫锦军[1] 袁乃昌[1] 

机构地区：[1]国防科技大学电子科学与工程学院

出　　处：《应用科学学报》2004年第1期85-90,共6页Journal of Applied Sciences

基　　金：863计划课题(2002AA731181);国防科技重点实验室基金(51483010301KG0102)资助项目

摘　　要：用一种新的色散介质的FDTD算法——分段线性电流密度递归卷积FDTD算法分析了不均匀等离子体的隐身技术.通过计算一维碰撞等离子体平板对电磁波的反射和透射系数验证了该算法的高效性和高精度.对电子密度抛物线分布的不均匀非磁化等离子体覆盖雷达目标的隐身效果进行了时域和频域分析.In this paper a novel FDTD formulation for dispersive media called piecewise linear JE recursive convolution (PLJERC) finite-different time-domain (FDTD) method is used to study the stealth technology of inhomogeneous plasma. The high accuracy and efficiency of this method is confirmed by computing the reflection and transmission coefficients of electromagnetic wave through a collisional plasma slab in one dimension. The stealth effect of radar targets covered with parabolic profile inhomogeneous plasma is studied both in time-domain and frequency-domain.

关 键 词：色散介质 电磁波 等离子体隐身 分段线性 电流密度 递归卷积 FDTD算法 不均匀等离子体 

分 类 号：O451[理学—无线电物理] O53[理学—物理]