Boero, Federico and Fedeli, Alessandro and Lanini, Matteo and Maffongelli, Manuela and Monleone, Ricardo and Pastorino, Matteo and Randazzo, Andrea and Salvade, Andrea and Sansalone, Andrea (2017) Microwave Tomography for the Inspection of Wood Materials: Imaging System and Experimental Results. Transaction on Microwave Theory and Techniques. (Submitted)
Full text not available from this repository.Abstract
A new microwave tomography prototype for the inspection of wood materials is described and experimentally tested in this paper. The system prototype is composed by a set of microwave antennas, used for both illuminating the sample and collecting field measurements, a custom RF hardware, and a novel tomographic inversion scheme. The antennas are placed in contact with the outer structure of the sample, e.g., a tree trunk, and are optimized for radiating inside the inspected region. A switching matrix connects the set of antennas with a custom vector network analyzer, which is used for acquiring multistatic and multiview field measurements at multiple frequencies. The measured data are processed by means of a combined qualitative/quantitative inversion method. In particular, in a first step the field scattered by the inner inhomogeneities or inclusions is estimated, producing also a qualitative image of the sample. Then, these data are utilized by a deterministic inversion algorithm for obtaining a quantitative reconstruction of the dielectric properties of the structure under test.
| Item Type: | Scientific journal article, Newspaper article or Magazine article |
|---|---|
| Subjects: | Engineering Engineering > Electronic & electrical engineering |
| Department/unit: | Dipartimento tecnologie innovative > Istituto sistemi e elettronica applicata > Laboratorio telecom telemetria e alta frequenza |
| Depositing User: | Daisy Albertella |
| Date Deposited: | 16 Oct 2017 14:55 |
| Last Modified: | 16 Oct 2017 14:55 |
| URI: | http://repository.supsi.ch/id/eprint/8665 |
Actions (login required)
 |
View Item |