Title :
Numerical calculation of the RCS of conductive objects covered with time-varying inhomogeneous plasma
Author :
Liu, Song ; Wu, Ping ; Zhong, Shuangying ; Zhao, Shuyi
Author_Institution :
Nanchang Univ., Nanchang, China
Abstract :
The trapezoidal recursive convolution (TRC) finite-difference time-domain method (FDTD) is extended to study the back scattering radar cross sections (RCS) of conductive targets covered with inhomogeneous, time-varying plasma. The two-dimensional TRC-FDTD formulations are derived. Parabolic and Epstein density profiles of plasma are assumed in this letter. The back scattering RCS is calculated under different conditions using a 2-D model for a conductive cylinder covered with plasma. The numerical results illustrate that plasma cloaking system can successfully reduce the back scattering RCS, the plasma stealth is effective, and reasonable selection of different density profile (e.g. parabolic and Epstein density profiles), different parameters of plasma can enhance its effectiveness.
Keywords :
backscatter; convolution; finite difference time-domain analysis; invisibility cloaks; plasma applications; radar cross-sections; 2D model; Epstein density profiles; RCS numerical calculation; TRC-FDTD formulations; back scattering radar cross sections; conductive cylinder; conductive objects; finite-difference time-domain method; parabolic density profiles; plasma cloaking system; plasma stealth; time-varying inhomogeneous plasma; trapezoidal recursive convolution method; Finite difference methods; Nonhomogeneous media; Plasmas; Scattering; Time domain analysis; Time frequency analysis; FDTD method; Plasma; Radar Scattering Sections; inhomogeneous; time-varying;
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8556-7
DOI :
10.1109/ICMTCE.2011.5915550