Title :
Detection of buried inhomogeneous elliptic cylinders by a memetic algorithm
Author :
Caorsi, Salvatore ; Massa, Andrea ; Pastorino, Matteo ; Raffetto, Mirco ; Randazzo, Andrea
Author_Institution :
Dept. of Electron., Univ. of Pavia, Italy
Abstract :
The paper studies the application of a global optimization procedure to the detection of buried inhomogeneities. The object inhomogeneities are schematized as multilayer infinite dielectric cylinders with elliptic cross sections. An efficient recursive analytical procedure is used for the forward scattering computation. A functional is constructed in which the field is expressed in a series solution of Mathieu functions. Starting with the input scattered data, the iterative minimization of the functional is performed by a new optimization method called memetic algorithm.
Keywords :
buried object detection; dielectric bodies; electromagnetic wave scattering; functional analysis; imaging; inhomogeneous media; iterative methods; minimisation; multilayers; Mathieu functions; buried object detection; electromagnetic imaging; forward scattering; global optimization procedure; inhomogeneous elliptic cylinders; iterative minimization; memetic algorithm; multilayer dielectric cylinders; recursive analytical procedure; recursive procedure; series solution; Biomedical imaging; Dielectrics; Electromagnetic scattering; Engine cylinders; Evolutionary computation; Genetic algorithms; Inverse problems; Iterative algorithms; Iterative methods; Nonhomogeneous media;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2003.817984