Title :
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
fDate :
12/1/2001 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
