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dc.contributor.authorBroquetas Ibars, Antoni
dc.contributor.authorJofre Roca, Lluís
dc.contributor.authorCardama Aznar, Ángel
dc.contributor.authorElias Fusté, Antoni
dc.contributor.authorRius Casals, Juan Manuel
dc.contributor.authorRomeu Robert, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2008-06-01T17:31:58Z
dc.date.available2008-06-01T17:31:58Z
dc.date.created1990-07-23
dc.date.issued1991-05-01
dc.identifier.citationBroquetas, 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.
dc.identifier.issn0018-9480
dc.identifier.urihttp://hdl.handle.net/2117/2062
dc.description.abstractA 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.
dc.format.extent836-844
dc.language.isoeng
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
dc.subject.lcshMicrowaves
dc.subject.lcshElectromagnetic waves
dc.subject.lcshDiagnosis
dc.subject.lcshRadiation
dc.subject.lcshRadioactivity
dc.subject.lcshBiology
dc.subject.lcshImage processing
dc.subject.otherBiomedical equipment
dc.subject.otherComputerised picture processing
dc.subject.otherc¡Computerised tomography
dc.subject.otherElectromagnetic compatibility
dc.subject.otherMedical diagnostic computing
dc.subject.otherMicrowave imaging
dc.subject.other2.45 GHz
dc.subject.otherEMC
dc.subject.otherUHF
dc.subject.otherActive microwave tomography
dc.subject.otherArray axis
dc.subject.otherBiological targets
dc.subject.otherBody slices
dc.subject.otherCylindrical geometry
dc.subject.otherDetection techniques
dc.subject.otherDielectric properties
dc.subject.otherElectromagnetic compatibility
dc.subject.otherHigh-frequency architectures
dc.subject.otherHigh-level illuminating signal
dc.subject.otherLow-power illumination
dc.subject.otherPrototype imaging system
dc.titleCylindrical geometry: a further step in active microwave tomography
dc.typeArticle
dc.subject.lemacMicroones
dc.subject.lemacOnes electromagnètiques
dc.subject.lemacRadiació
dc.subject.lemacRadioactivitat
dc.subject.lemacDiagnòstic
dc.subject.lemacImatge -- Processament
dc.subject.lemacBiologia
dc.contributor.groupUniversitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
local.personalitzacitaciotrue


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