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FDTD Simulation of Bistatic Scattering by Conductive Cylinder Covered with Inhomogeneous Time-Varying Plasma

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【作者】 刘少斌刘三秋袁乃昌

【Author】 LIU Shaobin ( ~2, LIU Sanqiu ( , YUAN Naichang ( 1 College of Information Science & Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China 2 School of Sciences, Nanchang University, Nanchang 330047, China 3 School of Electronic Science and Engineering, National University of Defense Technology Changsha 410073, China

【机构】 College of Information Science & Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China School of Sciences, Nanchang University, Nanchang 330047, ChinaSchool of Sciences, Nanchang University, Nanchang 330047, ChinaSchool of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

【摘要】 <正> A finite-different time-domain (FDTD) algorithm is applied in this paper to study the bistatic electromagnetic(EM) scattering by a conductive cylinder covered with inhomogeneous, collision, cold, time-varying plasma. The collision frequency of plasma is a function of the electron density and the pressure of the background gas. The plasma density follows any prescribed distribution function of the rise time of plasma and the radius of the column. The bistatic radar cross section (RCS) of the conductive cylinder cgvered with inhomogeneous time-varying plasma and inhomogeneous steady-state plasma is calculated under different conditions. The results illustrate that a plasma cloaking system can successfully reduce the RCS of the conductive cylinder.

【Abstract】 A finite-different time-domain (FDTD) algorithm is applied in this paper to study the bistatic electromagnetic(EM) scattering by a conductive cylinder covered with inhomogeneous, collision, cold, time-varying plasma. The collision frequency of plasma is a function of the electron density and the pressure of the background gas. The plasma density follows any prescribed distribution function of the rise time of plasma and the radius of the column. The bistatic radar cross section (RCS) of the conductive cylinder cgvered with inhomogeneous time-varying plasma and inhomogeneous steady-state plasma is calculated under different conditions. The results illustrate that a plasma cloaking system can successfully reduce the RCS of the conductive cylinder.

【基金】 supported by National Natural Science Foundation of China (No. 60471002);the Natural Science Foundation of Jiangxi Province (No. 0412014)
  • 【文献出处】 Plasma Science and Technology ,等离子体科学和技术(英文版) , 编辑部邮箱 ,2006年02期
  • 【分类号】O53
  • 【被引频次】6
  • 【下载频次】30
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