Study on MPI-Based Parallel Modified Conformal FDTD for 3-D Electrically Large Coated Targets by Using Effective Parameters

Author

Lei, Ji Zhao ; Liang, Chang Hong ; Ding, Wei ; Zhang, Yu

Author_Institution

Xidian Univ., Xi´´an

Volume

7

fYear

2008

fDate

6/30/1905 12:00:00 AM

Firstpage

175

Lastpage

178

Abstract

MPI-based parallel modified conformal finite difference time domain (P-MC-FDTD) method based on effective parameters for solving the scattering of electrically large coated targets is presented in this paper. The thin coating and free-space in a curved cell are replaced by an equivalent medium. The effective permittivity and electric conductivity for electric field samples on the cells are calculated by weighted-length of the medium and the free space. The modified conformal technique is used for magnetic field samples by dealing with stable conformal grids and unstable-prone conformal grids respectively. Combined with the parallel FDTD algorithm, the radar cross section (RCS) of 3-D electrically large coated targets can be calculated accurately.

Keywords

coating techniques; electric fields; finite difference time-domain analysis; radar cross-sections; 3D electrically large coated targets; MPI-based parallel modified conformal FDTD; conformal grids; electric field samples; finite difference time domain method; permittivity-electric conductivity; radar cross section; thin coating; unstable-prone conformal grids; Effective parameter; effective parameter; electrically large coated targets; finite difference time domain (FDTD); finite-difference time-domain (FDTD); radar cross section (RCS);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2008.921742

Filename

4488051