| 磁化等离子体覆盖导体散射问题的FE/BI方法分析 |
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| 引用本文： | 崔志伟,韩一平,李明磊.磁化等离子体覆盖导体散射问题的FE/BI方法分析[J].电波科学学报,2010(5). |
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| 作者姓名： | 崔志伟 韩一平 李明磊 |
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| 作者单位： | 西安电子科技大学理学院; |
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| 基金项目： | 国家自然科学基金资助项目(NO.60771039) |
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| 摘 要： | 基于矢量有限元方法和边界积分方程,推导了分析三维导体表面覆盖各向异性磁化等离子体电磁散射问题的矢量有限元/边界积分(FE/BI)方法公式,并将该方法推广到外磁场沿任意方向时磁化等离子体的情形。应用该方法计算了磁化等离子覆盖导体目标的双站雷达散射截面(RCS),分析了等离子体厚度、密度、碰撞频率和外磁场方向对雷达散射截面的影响。数值计算结果表明:在导体表面覆盖各向异性磁化等离子体并且选取合适的参数,能够有效地减少雷达散射截面。
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| 关 键 词： | 磁化等离子体 各向异性 FE/BI方法 电磁散射 |
Analysis of scattering characteristics of conducting objects covered with magnetized plasma by FE/BI method |
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| CUI Zhi-wei HAN Yi-ping LI Ming-lei.Analysis of scattering characteristics of conducting objects covered with magnetized plasma by FE/BI method[J].Chinese Journal of Radio Science,2010(5). |
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| Authors: | CUI Zhi-wei HAN Yi-ping LI Ming-lei |
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| Affiliation: | CUI Zhi-wei HAN Yi-ping LI Ming-lei(School of Science,Xidian University,Xi'an Shaanxi 710071,China) |
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| Abstract: | A hybrid edge-based finite element/ boundary integral(FE/BI) method is developed to solve electromagnetic scattering problems from 3-dimensional objects covered with anisotropic magnetized plasma.The method is extended to the case of magnetized plasma subject to an external magnetic field of arbitrary direction.The radar scattering sections(RCS) of perfectly conducting objects covered with anisotropic magnetized plasma are simulated.The effects of plasma thickness,density,collision frequency and the directi... |
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| Keywords: | magnetized plasma anisotropy FE/BI method electromagnetic scattering |
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