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采用z变换方法把时域有限差分方法(FDTD)推广应用于二维各向异性色散介质—磁化等离子体中,该算法同时解决了电磁波在各向异性和频率色散介质中传播的计算问题,给出了各向异性磁化等离子体中FDTD迭代公式.计算了各向异性磁化等离子体涂敷导体圆柱前后其雷达散射截面(RCS)的变化情况,分析了等离子体碰撞频率和电子回旋频率对其RCS的影响.
The finite difference time domain method (FDTD) is extended to the two-dimensional anisotropic dispersive media-magnetized plasma using z-transform method. The algorithm solves the problem of electromagnetic wave propagation in anisotropic and frequency-dispersive media simultaneously, The FDTD iterative formula in the anisotropic magnetized plasma is presented. The variations of the radar cross section (RCS) of the anisotropic magnetized plasma before and after the conductor cylinder are calculated. The effects of the plasma collision frequency and the electron cyclotron frequency on the RCS Impact.