Time-domain Reconstruction of a Two-dimensional Dielectric Cylinder by Using Real-coded Genetic Algorithm

Time-domain reconstruction of a two-dimensional dielectric cylinder by using real-coded genetic algorithm is presented in this paper. Scattering from the dielectric cylinder is solved by using finite-difference time-domain method (FDTD). The dielectric cylinder is represented by a set of geometrical...

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Bibliographic Details
Main Authors: Tan Qiongliang, Zhu Feng, Zhang Saiqiao, Liu Lina
Format: Conference Proceeding
Language:English
Subjects:
Dielectric measurements
Electric variables measurement
Electromagnetic fields
electromagnetic inverse scattering
Electromagnetic measurements
Electromagnetic scattering
FDTD
Finite difference methods
Genetic algorithms
Inverse problems
real-coded genetic algorithm
Scattering parameters
Time domain analysis
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Summary:Time-domain reconstruction of a two-dimensional dielectric cylinder by using real-coded genetic algorithm is presented in this paper. Scattering from the dielectric cylinder is solved by using finite-difference time-domain method (FDTD). The dielectric cylinder is represented by a set of geometrical and constitutive parameters. The electromagnetic inverse scattering problem is to retrieve these parameters given the measured time-domain scattered electric fields on finite receivers. It is cast into an optimization problem by defining the objective function as the relative error between the measured and simulated time-domain scattered electric fields on finite receivers. The optimization problem is then solved by using the real-coded genetic algorithm. Good agreement is observed between true profiles and numerically reconstructed ones
DOI:10.1109/CEEM.2006.257929