A Computationally Efficient Method in Inverse Scattering Using Fourier Series Expansion in Conjunction with FDTD and PSO

Author

Semnani, Abbas ; Kamyab, Manoochehr

Author_Institution

K.N. Toosi Univ. of Technol., Tehran

fYear

2007

fDate

15-17 Oct. 2007

Firstpage

1

Lastpage

4

Abstract

A computationally efficient algorithm for solving 1D inverse scattering problems in time domain is proposed. The FDTD and particle swarm optimization (PSO) methods are utilized in conjunction with cosine Fourier series expansion in suggested procedure and the performance is studied for various 1D permittivity profile reconstruction cases. It is shown that the number of unknowns and consequently the amount of computations is reduced considerably while the precision of the solutions would not be affected significantly. Sensitivity analysis of the suggested method to some important parameters of the algorithm is studied briefly, as well.

Keywords

Fourier series; computational electromagnetics; electromagnetic wave scattering; finite difference time-domain analysis; particle swarm optimisation; 1D inverse scattering problems; 1D permittivity profile reconstruction cases; FDTD method; PSO method; cosine Fourier series expansion; finite difference time-domain analysis; particle swarm optimization; sensitivity analysis; Electromagnetic scattering; Finite difference methods; Fourier series; Geophysical measurements; Inverse problems; Optical scattering; Particle scattering; Permittivity; Radar scattering; Time domain analysis; FDTD; Fourier series expansion; Inverse scattering; PSO; permittivity reconstruction;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Electromagnetics in Time-Domain, 2007. CEM-TD 2007. Workshop on

Conference_Location

Perugia

Print_ISBN

978-1-4244-1170-2

Electronic_ISBN

978-1-4244-1170-2

Type

conf

DOI

10.1109/CEMTD.2007.4373537

Filename

4373537