eprintid: 502 rev_number: 4 eprint_status: archive userid: 5 dir: disk0/00/00/05/02 datestamp: 2011-05-10 lastmod: 2013-07-01 11:25:21 status_changed: 2013-07-01 11:25:21 type: techreport metadata_visibility: show item_issues_count: 0 creators_name: Massa, Andrea creators_name: Rocca, Paolo creators_name: Oliveri, Giacomo title: Improving the Numerical Effectiveness of a Class of Microwave Imaging Techniques For NDE/NDT with the SMW Updating Formula ispublished: unpub subjects: TU full_text_status: public abstract: This paper presents an innovative microwave imaging technique suitable for NDT/NDE applications. To reduce the number of problem unknowns as well a the computational load by improving the convergence rate of the process, the available a-priori information is exploited by introducing a computationally-effective procedure for the prediction of the electric field based on the updating Sherman-Morrison-Woodbury (SMW) formula. The numerical results as well as comparisons with state-of-the-art methods confirm the effectiveness, the feasibility, and the robustness of the proposed approach. date: 2011-01 date_type: published institution: University of Trento department: informaticat refereed: FALSE referencetext: [1] R. Zoughi, Microwave Testing and Evaluation. Kluwer Academic Publishers, The Netherlands, 2000. [2] S. Caorsi, A. Massa and M. Pastorino, “A crack identification microwave procedure based on a genetic algorithm for nondestructive testing,” IEEE Trans. Antennas Propagat., vol. 49, pp. 1812-1820, 2001. [3] S. Caorsi, A. Massa, M. Pastorino, and F. Righini, “Crack detection in lossy two-dimensional structures by means of a microwave imaging approach,” Int. J. Appl. Electromagnetics Mechanics, vol. 11, pp. 233-244, 2000. [4] M. Pastorino, A. Massa, and S. Caorsi, “A global optimization technique for microwave nondestructive evaluation,” IEEE Trans. Instrum. Meas., vol. 51, pp. 666-673, 2002. [5] S. Caorsi, A. Massa, M. Pastorino, and M. Donelli, “Improved microwave imaging procedure for nondestructive evaluations of two-dimensional structures,” IEEE Trans. Antennas Propagat., vol. 52, pp. 1386-1397, 2004. [6] D. S. Jones, The Theory of Electromagnetism. Oxford, U.K.: Pergamon Press, 1964. [7] J. H. Richmond, “Scattering by a dielectric cylinder of arbitrary cross section shape,” IEEE Trans. Antennas Propagat., vol. 13, pp. 334-341, 1965. [8] D. E. Goldberg, Genetic Algorithms in Search, Optimization, and Machine Learning. Addison-Wesley, Reading, MA, USA, 1989. [9] J. M. Johnson and Y. Rahmat-Samii, “Genetic algorithms in engineering electromagnatics,” IEEE Trans. Antennas Propagat. Mag., vol. 39, pp 7-26, 1997. [10] E. Yip and B. Tomas, “Obtaining scattering solution for perturbed geometries and materials from moment method solutions,” ACES Journal, pp. 95-118, 1988. citation: Massa, Andrea and Rocca, Paolo and Oliveri, Giacomo (2011) Improving the Numerical Effectiveness of a Class of Microwave Imaging Techniques For NDE/NDT with the SMW Updating Formula. [Technical Report] (Unpublished) document_url: http://www.eledia.org/students-reports/502/1/DISI-11-277.C88.pdf