Multiresolution analysis for reconstruction of conductivity profiles in eddy current nondestructive evaluation using probe impedance data

Publication Type:
Journal Article
Citation:
IEEE Transactions on Magnetics, 2004, 40 (4 II), pp. 2101 - 2103
Issue Date:
2004-07-01
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This paper presents a wavelet-based multiresolution analysis method for solving the inverse problem in eddy current testing (ECT). Using the probe impedance signals as the measurement data, the reconstruction of conductivity profiles can be performed by a minimization scheme. The method allows to identify the regions where the perturbation may be localized and to retrieve the unknown parameters only in those regions. Some numerical simulation results show the feasibility of the technique.
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