| 用FDTD计算各向异性磁化等离子体涂敷二维目标的RCS |
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| 引用本文： | 徐利军,刘少斌,袁乃昌.用FDTD计算各向异性磁化等离子体涂敷二维目标的RCS[J].物理学报,2005,54(10):4789-4793. |
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| 作者姓名： | 徐利军 刘少斌 袁乃昌 |
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| 作者单位： | 国防科技大学电子科学与工程学院，长沙 410073 |
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| 基金项目： | 国家重点基础研究项目(批准号:2002AA731181)资助的课题. |
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| 摘 要： | 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.
关键词：
时域有限差分方法
各向异性磁化等离子体
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| 关 键 词： | 时域有限差分方法 各向异性磁化等离子体 |
| 文章编号： | 1000-3290/2005/54（10）/4789-05 |
| 收稿时间： | 11 23 2004 12:00AM |
| 修稿时间： | 2004-11-232005-03-15 |
RCS of 2-D target loaded with anisotropic magnetized plasma computed by FDTD |
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| Xu Li-Jun,Liu Shao-Bin,Yuan Nai-Chang.RCS of 2-D target loaded with anisotropic magnetized plasma computed by FDTD[J].Acta Physica Sinica,2005,54(10):4789-4793. |
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| Authors: | Xu Li-Jun Liu Shao-Bin Yuan Nai-Chang |
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| Institution: | Institute of Electronic Science and Engineering, NUDT, Changsha 410073, China |
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| Abstract: | The finite-difference time-domain(FDTD) method is extended to two dimensional anisotropic dispersive media-magnetized-plasma using Z transformation for the f ist time. The problem which incorporates both anisotropy and frequency dispersio n at the same time is solved for the electromagnetic wave propagation. The two d imensional FDTD formulations for anisotropic magnetized plasma are derived. The method is applied to the electromagnetic scattering of perfectly conducting cyli nder coated with anisotropic magnetized plasma. By simulating the interaction of electromagnetic wave with magnetized plasma, some bistatic numerical results ar e obtained, which indicate that an appropriate plasma coating may efficiently re duce the RCS of a metallic target. |
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| Keywords: | FDTD anisotropic magnetized plasma |
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