Title :
Non-linear inverse resistivity profiling using wavelets
Author :
Pierri, R. ; Rubinacci, G. ; Tamburrino, A. ; Ventre, S. ; Villone, F.
Author_Institution :
Naples Univ., Italy
fDate :
9/1/1998 12:00:00 AM
Abstract :
A quadratic approach is used to find the unknown resistivity of a conducting body. The resistivity variation are supposed to be spatially localized. The multiresolution analysis is discussed in order to obtain a good estimate of the resistivity profile with a limited number of unknown parameters. The method allows to identify the regions where the perturbations may be localized and to retrieve the unknowns parameters only in those regions. Some numerical results show the main features of the proposed approach
Keywords :
eddy current testing; electric resistance measurement; electrical resistivity; inverse problems; wavelet transforms; conducting body; eddy current nondestructive testing; multiresolution analysis; nonlinear inverse resistivity profiling; quadratic method; wavelets; Approximation methods; Conductivity; Conductors; Eddy current testing; Eddy currents; Inverse problems; Multiresolution analysis; Nondestructive testing; Scattering; Vectors;
Journal_Title :
Magnetics, IEEE Transactions on
