eprintid: 527 rev_number: 5 eprint_status: archive userid: 5 dir: disk0/00/00/05/27 datestamp: 2008-12-16 lastmod: 2013-07-01 11:35:00 status_changed: 2013-07-01 11:35:00 type: techreport metadata_visibility: show item_issues_count: 0 creators_name: Massa, Andrea creators_name: ELEDIA, Laboratory title: Microwave Imaging from Amplitude-Only Data–Advantages and Open Problems of a Two-Step Multi-resolution Strategy ispublished: unpub subjects: TU full_text_status: public abstract: In this report, a two step strategy for the inversion of amplitude-only data in microwave imaging applications is analyzed. At the first step of the proposed method, the illuminating source is synthesized according to a line sources model in order to compute the incident field in the investigation domain starting from the values available in the measurement domain. The second step is aimed at reconstructing the profile of the objects under test thanks to the iterative multi-scaling approach integrated with the Particle Swarm Optimizer, an effective evolutionary minimization technique. The reconstruction accuracy of the proposed phaseless retrieval strategy is analyzed using synthetic data concerned with a multiple scatterer configuration and successively further assessed inverting experimental data date: 2008-11 date_type: published institution: University of Trento department: informaticat refereed: FALSE referencetext: [1] Bindu, G., S. J. Abraham, A. Lonappan, V. Thomas, C. K. Aanandan, and K. T. Mathew, “Active microwave imaging for breast cancer detection,” Progress In Electromagnetics Research, PIER 58, 149–169, 2006. [2] Guo, B., Y. Wang, J. Li, P. Stoica, and R. Wu, “Microwave imaging via adaptive beamforming methods for breast cancer detection,” Journal of Electromagnetic Waves and Applications, Vol. 20, 53–63, 2006. [3] Salman, A. O., S. Gavrilov, and A. Vertiy, “Subsurface microwave imaging by using angular spectrum of electromagnetic field,” Journal of Electromagnetic Waves and Applications, Vol. 16, 1511–1529, 2002. [4] Bucci, O. M. and Franceschetti, G., “On the degrees of freedom of scattered fields,” IEEE Trans. Antennas Propagat., vol. 37, 918-926, 1989. [5] Bucci O. M. and Isernia, T., “Electromagnetic inverse scattering: retrievable information and measurements strategies,” Radio Sci., vol. 32, 2123-2138, 1997. [6] Wolf, E., “Determination of the amplitude and the phase of the scattered fields by holography,”. J. Opt. Soc. Am. A, vol. 60, 18-20, 1970. [7] Faris, G. W. and Hertz, H. M., “Tunable differential interferometer for optical tomography,” Appl. Opt., vol. 28, 4662-4667, 1989. [8] Caorsi, S., Massa, A., Pastorino, M., and Randazzo, A., “Electromagnetic detection of dielectric scatterers using phaseless synthetic and real data and the memetic algorithm,” IEEE Trans. Geosci. Remote Sensing, vol. 41, 2745-2753, 2003. [9] Takenaka, T., Wall, D. J. N., Harada, H., and Tanaka, M., “Reconstruction algorithm of the refractive index of a cylindrical object from the intensity measurements of the total field,” Microwave Optical Technol. Lett., vol. 14, 182-188, 1997. [10] Maleki, M. H., Devaney, A. J., and Schatzberg, A., “Phase retrieval and intensity-only reconstruction algorithms from optical diffraction tomography,” J. Opt. Soc. Am. A, vol. 10, 1086-1092, 1993. [11] Crocco, L., D’Urso, M., and Isernia, T., “Inverse scattering from phaseless measurements of the total field on a closet curve,” J. Opt. Soc. Am. A, vol. 21, 622-630, 2004. [12] Franceschini G., Donelli, M., Azaro, R., and Massa, A., “Inversion of phaseless total field data using a two-step strategy based on the iterative multiscaling approach,” IEEE Trans. Geosci. Remote Sensing, vol. 44, 3527-3539, 2006. [13] Caorsi, S., Donelli, M., and Massa, A., “Detection, location, and imaging of multiple scatterers by means of the iterative multiscaling method,” IEEE Trans. on Microwave Theory Tech., vol. 52, 1217-1228, 2004. [14] Caorsi, S., Donelli, M., Franceschini, D., and Massa, A., “A new methodology based on an iterative multiscaling for microwave imaging,” IEEE Trans. on Microwave Theory Tech., vol. 51, 1162-1173, 2003. [15] Robinson, J. and Rahmat-Samii, Y., “Particle swarm optimization in electromagnetics,” IEEE Trans. on Antennas Propagat., vol. 52, 771-778, 2004. [16] Kennedy, J., Eberhart, R. C., Shi, Y., Swarm Intelligence, Morgan Kaufmann Publishers, San Francisco, 2001. [17] Donelli, M. and Massa, A., “Computational approach based on a particle swarm optimizer for microwave imaging of two-dimensional dielectric scatterers,” IEEE Trans. on Microwave Theory Tech., vol. 53, 1761-1776, 2005. [18] Belkebir, K. and Saillard, M., “Special issue on Testing inversion algorithms against experimental data: inhomogeneous targets,” Inverse Problems, vol. 21, 1-3, 2005. citation: Massa, Andrea and ELEDIA, Laboratory (2008) Microwave Imaging from Amplitude-Only Data–Advantages and Open Problems of a Two-Step Multi-resolution Strategy. [Technical Report] (Unpublished) document_url: http://www.eledia.org/students-reports/527/1/DISI-08-073.pdf