Title :
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
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.901846
