Bistatic Scattering From a Three-Dimensional Object Over a Randomly Rough Surface Using the FDTD Algorithm

Author

Kuang, Lei ; Jin, Ya-Qiu

Author_Institution

Fudan Univ., Shanghai

Volume

55

Issue

8

fYear

2007

Firstpage

2302

Lastpage

2312

Abstract

A numerical finite-difference time-domain approach for electromagnetic scattering from an object over a randomly rough surface in three-dimensional (3-D) model is developed. Rough surface is truncated in numerical simulation by using the periodic surface extension, and one period of the rough surface with dependence of the correlation length is used for scattering computation. Generation of the incident wave upon the rough surface is presented. A numerical model and algorithm of a single object on or above a rough surface are developed. Polarized bistatic scattering from the object and rough surface is obtained based on numerical distribution of the near zone fields. Comparison with conventional two-dimensional model is also discussed.

Keywords

electromagnetic wave scattering; finite difference time-domain analysis; numerical analysis; FDTD algorithm; electromagnetic scattering; numerical distribution; numerical finite-difference time-domain; numerical model; numerical simulation; periodic surface extension; polarized bistatic scattering; randomly rough surface; scattering computation; Electromagnetic modeling; Electromagnetic scattering; Finite difference methods; Numerical models; Numerical simulation; Polarization; Rough surfaces; Surface roughness; Surface waves; Time domain analysis; 3-D object and rough surface; Bistatic scattering; finite-difference time-domain (FDTD); periodic boundary condition;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2007.901846

Filename

4286015