Title :
On the scattering by a cylindrical object below a rough surface with the CWA
Author :
Fiaz, Muhammad Arshad ; Ponti, Cristina ; Schettini, Giuseppe
Author_Institution :
Dept. of Electron., Quaid-i-Azam Univ., Islamabad, Pakistan
Abstract :
Cylindrical Wave Approach is applied to the scattering by a cylinder placed below a rough surface, and combined to Small Perturbation Method in the first-order approximation. In the theoretical approach, a surface with arbitrary profile is dealt with. As to the numerical solution, two alternative implementations of the surface are proposed: a sinusoidal profile and a periodic surface with samples from a Gaussian roughness spectrum. The developed method can be applied to the simulation of scattering by buried objects in a realistic environment with natural unevenesses.
Keywords :
approximation theory; electromagnetic wave scattering; perturbation theory; surface roughness; CWA; Gaussian roughness spectrum; cylindrical object; cylindrical wave approach; first-order approximation; numerical solution; periodic surface; perturbation method; rough surface; scattering; sinusoidal profile; theoretical approach; Electromagnetic scattering; Numerical models; Remote sensing; Rough surfaces; Surface roughness; Surface waves;
Conference_Titel :
Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO), 2014 International Conference on
Conference_Location :
Pavia
DOI :
10.1109/NEMO.2014.6995704
