Analysis of a Nonlinear Technique for Microwave Imaging of Targets Inside Conducting Cylinders

Electronics

Alessandro Fedeli¹  Andrea Randazzo¹  GianLuigi Gragnani¹  Matteo Pastorino¹ 

[1] Department of Electrical, Electronic, Telecommunications Engineering, and Naval Architecture, University of Genoa, 16145 Genoa, Italy;

关键词: inverse scattering;    tomography;    conducting cylinders;   

DOI  :  10.3390/electronics10050594

来源: DOAJ

【 摘 要 】

Microwave imaging of targets enclosed in circular metallic cylinders represents an interesting scenario, whose applications range from biomedical diagnostics to nondestructive testing. In this paper, the theoretical bases of microwave tomographic imaging inside circular metallic pipes are reviewed and discussed. A nonlinear quantitative inversion technique in non-Hilbertian Lebesgue spaces is then applied to this kind of problem for the first time. The accuracy of the obtained dielectric reconstructions is assessed by numerical simulations in canonical cases, aimed at verifying the dependence of the result on the size of the conducting enclosure and comparing results with the conventional free space case. Numerical results show benefits in lossy environments, although the presence and the type of resonances should be carefully taken into account.

【 授权许可】

Unknown