eprintid: 314 rev_number: 4 eprint_status: archive userid: 5 dir: disk0/00/00/03/14 datestamp: 2011-08-02 lastmod: 2013-06-28 11:17:12 status_changed: 2013-06-28 11:17:12 type: techreport metadata_visibility: show item_issues_count: 0 creators_name: Franceschini, Gabriele creators_name: Franceschini, Davide creators_name: Donelli, Massimo creators_name: Azaro, Renzo creators_name: Massa, Andrea title: Electromagnetic Inversion of Amplitude-Only Data Through a Two-Step Strategy ispublished: pub subjects: TU full_text_status: public abstract: In the following contribution an innovative two step strategy for the inversion of amplitude-only data in microwave imaging applications is presented. At the first step an inverse source problem is solved for computing the incident field in the investigation domain. Then, in the successive step, an iterative multi-resolution method combined with an evolutionary optimiser is applied in order to extract the reduced amount of information of the problem at hand. Some numerical and experimental results show the effectiveness and the limit of this technique. This is the author's version of the final version available at IEEE. date: 2011-01 date_type: published institution: University of Trento department: informaticat refereed: FALSE referencetext: [1] O. M. Bucci, and G. Franceschetti,”On the degrees of freedom of scattered fields”, IEEE Trans. Antennas Propagat., vol. 37, pp. 918-926,1989. [2] O. M. Bucci and T. Isernia, “Electromagnetic inverse scattering: retrievable information and measurements strategies,” Radio Sci., pp. 2123-2138, 1997 [3] E. Wolf, “Determination of the amplitude and the phase of the scattered fields by holography,” J. Opt. Soc. Am. A, vol. 60, pp. 18-20, 1970. [4] G. W. Faris and H. M. Hertz, “Tunable differential interferometer for optical tomography,” Appl. Opt., vol. 28, pp. 4662-4667, 1989. [5] L. Crocco, M. D’Urso, and T. Isernia, “Inverse scattering from phaseless measurements of the total field on a closet curve,” J. Opt. Soc. Am. A, vol. 21, Apr. 2004. [6] S. Caorsi, M. Donelli, D. Franceschini, and A. Massa, “A new methodology based on an iterative multiscaling for microwave imaging,” IEEE Trans. Microwave Theory Tech., vol.51, pp. 1162-1173, Apr. 2003. [7] J. Robinson and Y. Rahmat-Sami, “Particle swarm optimization in electromagnetics,” IEEE Trans. Antennas Propagat., vol.52, pp. 771-778, Mar. 2004. [8] J. Kennedy, R. C. Eberhart, and Y. Shi, Swarm Intelligence, San Francisco, Morgan Kaufmann Publishers, 2001. [9] M. Donelli and A. Massa, “Computational approach based on a particle swarm optimizer for microwave imaging of two-dimensional dielectric scatterers,” IEEE Trans. Microwave Theory Tech., vol.51, pp. 1162-1173, Apr. 2003. [10] K. Belkebir and M. Saillard, Special issue on “Testing inversion algorithms against experimental data,” Inverse Problems, vol.17, pp. 1565-1702, Dec. 2001. citation: Franceschini, Gabriele and Franceschini, Davide and Donelli, Massimo and Azaro, Renzo and Massa, Andrea (2011) Electromagnetic Inversion of Amplitude-Only Data Through a Two-Step Strategy. [Technical Report] document_url: http://www.eledia.org/students-reports/314/1/DISI-11-249.C116.pdf