| 改进Z-FDTD方法分析等离子体的电磁散射 |
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| 引用本文： | 刘建晓,苏明敏,游雄,李爱萍,杨宏伟. 改进Z-FDTD方法分析等离子体的电磁散射[J]. 科学技术与工程, 2013, 13(15): 4418-4421 |
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| 作者姓名： | 刘建晓 苏明敏 游雄 李爱萍 杨宏伟 |
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| 作者单位： | 衡水学院物理系,衡水学院物理系,南京农业大学理学院,南京农业大学理学院,南京农业大学理学院物理系 |
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| 基金项目： | 国家自然科学基金(No.11171155) 、中央高校基本科研业务费专项资金资助(No.Y0201100265) |
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| 摘 要： | 采用改进的Z变换方法研究了二维非均匀等离子体的散射特性,分析了TM、TE模式下不均匀等离子体包围金属圆柱的双站雷达散射截面。推导了二维情况下改进Z变换方法的公式。此方法具有推导过程简单,迭代公式简洁,计算精度高等优点,用于分析等离子体等色散介质的散射特性具有一定优势。给出了TM模式下电场分量的Matlab代码。数值结果表明,合适选择等离子体厚度、等离子体频率分布可在一定范围内降低目标的RCS,起到一定的隐身效果。
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| 关 键 词： | Z变换 二维 非均匀等离子体 双站雷达散射截面 |
| 收稿时间： | 2013-01-10 |
| 修稿时间： | 2013-01-30 |
Improved Z-FDTD method analysis of the Electromagnetic scattering characteristics from plasma |
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| liuJianxiao,SuMingmin,YouXiong,LiAiping and YangHongwei. Improved Z-FDTD method analysis of the Electromagnetic scattering characteristics from plasma[J]. Science Technology and Engineering, 2013, 13(15): 4418-4421 |
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| Authors: | liuJianxiao SuMingmin YouXiong LiAiping YangHongwei |
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| Affiliation: | Nanjing Agricultural University College of Science |
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| Abstract: | Using an improved Z-transform method to study the scattering characteristics of the two-dimensional inhomogeneous plasma. The bistatic RCS of the metal cylinder surrounded by non-uniform plasma in the TM and TE mode are analyzed. For the method there are some advantages of simple derivation simple iterative formula and high precision.The formulas of improved Z-transform method are derived in the case Two-Dimensions. And parts of the Matlab codes on the TM mode are given. The numerical results show that the method has certain advantages for the analysis of the scattering properties of the plasma and other media. As the appropriate choice of the plasma frequency distribution and the thickness of the plasma can reduce the RCS of target in a certain range and play a stealth effect. |
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| Keywords: | Z-FDTD two dimensional non-uniform plasma bistatic RCS |
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