RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique
Radio-frequency tomography was originally proposed to image underground cavities. Its flexible forward model can be used in free-space by choosing an appropriate dyadic Green's function and can be translated in the microwave domain. Experimental data are used to validate a novel inversion schem...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/528347 |
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| _version_ | 1832548942033715200 |
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| author | V. Picco T. Negishi S. Nishikata D. Spitzer D. Erricolo |
| author_facet | V. Picco T. Negishi S. Nishikata D. Spitzer D. Erricolo |
| author_sort | V. Picco |
| collection | DOAJ |
| description | Radio-frequency tomography was originally proposed to image underground cavities. Its flexible forward model can be used in free-space by choosing an appropriate dyadic Green's function and can be translated in the microwave domain. Experimental data are used to validate a novel inversion scheme, based on the algebraic reconstruction technique. The proposed method is improved by introducing physical bounds on the solution returned. As a result, the images of the dielectric permittivity profiles obtained are superior in quality to the ones obtained using classical regularization approaches such as the truncated singular value decomposition. The results from three experimental case studies are presented and discussed. |
| format | Article |
| id | doaj-art-3151971b08894d0888a5361204605848 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-3151971b08894d0888a53612046058482025-02-03T06:12:34ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/528347528347RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction TechniqueV. Picco0T. Negishi1S. Nishikata2D. Spitzer3D. Erricolo4Department of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607, USADepartment of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607, USADepartment of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607, USADepartment of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607, USADepartment of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607, USARadio-frequency tomography was originally proposed to image underground cavities. Its flexible forward model can be used in free-space by choosing an appropriate dyadic Green's function and can be translated in the microwave domain. Experimental data are used to validate a novel inversion scheme, based on the algebraic reconstruction technique. The proposed method is improved by introducing physical bounds on the solution returned. As a result, the images of the dielectric permittivity profiles obtained are superior in quality to the ones obtained using classical regularization approaches such as the truncated singular value decomposition. The results from three experimental case studies are presented and discussed.http://dx.doi.org/10.1155/2013/528347 |
| spellingShingle | V. Picco T. Negishi S. Nishikata D. Spitzer D. Erricolo RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique International Journal of Antennas and Propagation |
| title | RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique |
| title_full | RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique |
| title_fullStr | RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique |
| title_full_unstemmed | RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique |
| title_short | RF Tomography in Free Space: Experimental Validation of the Forward Model and an Inversion Algorithm Based on the Algebraic Reconstruction Technique |
| title_sort | rf tomography in free space experimental validation of the forward model and an inversion algorithm based on the algebraic reconstruction technique |
| url | http://dx.doi.org/10.1155/2013/528347 |
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