Cylindrical geometry: a further step in active microwave tomography
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/2062
Tipus de documentArticle
Data publicació1991-05-01
EditorIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
A prototype imaging system for active microwave tomography using cylindrical geometry has been developed, making it possible to obtain images of the dielectric properties of biological targets at 2.45 GHz. This configuration allows a fast exploration of body slices placed along the array axis, in a way similar to that of present X-ray scanners. The electromagnetic compatibility (EMC) of this approach is critical because the strongly attenuated received fields are measured on the same array which is being used to emit a high-level illuminating signal. Therefore, carefully designed high-frequency architectures and detection techniques are necessary. The system requires no mechanical movements to illuminate the body from multiple directions (views) and measure the scattered fields. In this way, a complete data set consisting of 64 views is acquired in 3 s using low-power illumination. The system is described, and images obtained with biological phantoms and actual bodies are presented.
CitacióBroquetas, A. ; Jofre, L. ; Cardama, A. ; Elias, A. ; Rius, J. ; Romeu, J. Cylindrical geometry: a further step in active microwave tomography. IEEE Transactions on microwave theory and techniques, 1991, vol. 39, núm. 5, p. 836-844.
ISSN0018-9480
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
cylindrical geometry further00079111.pdf | 1,037Mb | Visualitza/Obre |