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物理学报. 2005, 54(10): 4789-4793.
doi: 10.7498/aps.54.4789.
用FDTD计算各向异性磁化等离子体涂敷二维目标的RCS
- 收稿日期: 2004-11-23
- 修回日期: 2005-03-15
- 刊出日期: 2005-05-05
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.
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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
English Abstract
RCS of 2-D target loaded with anisotropic magnetized plasma computed by FDTD
- Received Date:
23 November 2004
- Accepted Date:
15 March 2005
- Published Online:
05 May 2005
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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