Analysis of Electromagnetic Scattering Properties From Time-Varying Moving Plasma With Lorentz-FDTD

被引：2
|
作者：
Bo, Yong [1 ,2 ]
Li, Haiyan [1 ,2 ]
Guo, Xianmin [1 ,2 ]
Yang, Lixia [1 ,2 ]
Chen, Wei [1 ,2 ]
Huang, Zhixiang [1 ,2 ]
机构：
[1] Anhui Univ, Key Lab Intelligent Comp & Signal Proc, Minist Educ, Hefei 230601, Peoples R China
[2] Anhui Prov Key Lab Target Recognit & Feature Extra, Luan 237000, Peoples R China
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 2023年 / 51卷 / 10期
关键词：
Time-domain analysis; Finite difference methods; Plasma properties; Electromagnetic scattering; Dispersion; Time-frequency analysis; Plasma sheaths; Electromagnetic (EM) properties; finite-difference time-domain (FDTD); Lorentz transformation; relative motion; time-varying plasma; HIGH-SPEED; RADAR ECHO; PROPAGATION; FLUCTUATION;
D O I：
10.1109/TPS.2023.3313774
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The electromagnetic (EM) scattering properties of a high-speed moving and time-varying plasma target are simulated in this work. The calculation model is first established for moving and time-varying dispersive medium with the Lorentz transformation and shift-operator finite-difference time-domain (SO-FDTD) method. Subsequently, the Lorentz-FDTD method is applied to calculate the EM scattering properties of the time-varying and moving plasma in a two-dimensional (2-D) case. Furthermore, the impact of the time-varying plasma parameters on the EM scattering properties is investigated. Finally, the bistatic radar cross section (RCS) of the time-varying plasma target is analyzed for various moving velocities and the results indicate that the EM wave is modulated by the time-varying and moving plasma, and the EM scattering of the time-varying and moving plasma is influenced by the moving velocity, time-varying properties, and plasma parameters.
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页码：2942 / 2953
页数：12
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