A crack identification microwave procedure based on a genetic algorithm for nondestructive testing

Author

Caorsi, Salvatore ; Massa, Andrea ; Pastorino, Matteo

Author_Institution

Dipt. di Elettronica, Pavia Univ., Italy

Volume

49

Issue

12

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

1812

Lastpage

1820

Abstract

This paper is aimed at exploring the possibility of using a microwave approach based on a genetic algorithm to detect a defect inside a known host object. Starting from the knowledge of the scattered field, the problem solution is recast as a two-step procedure. After defining a cost function depending on the geometric parameters of the crack, a minimization procedure based on a hybrid-coded genetic algorithm is applied. The influence of the noise as well as of the geometry of the defect on the crack detection and reconstruction is investigated. Moreover, the numerical effectiveness of the iterative approach is examined

Keywords

crack detection; genetic algorithms; image reconstruction; iterative methods; microwave imaging; nondestructive testing; cost function; crack detection; crack identification; crack reconstruction; geometric parameters; hybrid-coded genetic algorithm; iterative approach; microwave imaging; microwave procedure based; minimization procedure; noise; nondestructive testing; scattered field; Conducting materials; Cost function; Dielectrics; Genetic algorithms; Microwave imaging; Microwave theory and techniques; Nondestructive testing; Object detection; Scattering; Stochastic processes;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.982464

Filename

982464