Autor según el artículo: Lazaro A; Ramos A; Girbau D; Villarino R
Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/es de la URV: Girbau Sala, David / Lázaro Guillén, Antonio Ramon / Ramos Gadea, Ana Maria / Villarino Villarino, Ramón Maria
Palabras clave: Wavelet transforms Ultrawideband (uwb) Ultra-wideband radio Ultra-wideband (uwb) Time domain analysis Threshold detectors Temperature sensors Temperature sensor Signal to noise ratio Signal receivers Signal processing technique Signal processing Signal detection Radio waves Radio frequency identification (rfid) Low signal-to-noise ratio Gain compensations Continuous wavelet transforms Continuous wavelet transform (cwt) Continuous wavelet transform Chipless
Resumen: This letter presents signal processing techniques to detect a passive thermal threshold detector based on a chipless time-domain ultrawideband (UWB) radio frequency identification (RFID) tag. The tag is composed by a UWB antenna connected to a transmission line, in turn loaded with a biomorphic thermal switch. The working principle consists of detecting the impedance change of the thermal switch. This change occurs when the temperature exceeds a threshold. A UWB radar is used as the reader. The difference between the actual time sample and a reference signal obtained from the averaging of previous samples is used to determine the switch transition and to mitigate the interferences derived from clutter reflections. A gain compensation function is applied to equalize the attenuation due to propagation loss. An improved method based on the continuous wavelet transform with Morlet wavelet is used to overcome detection problems associated to a low signal-to-noise ratio at the receiver. The average delay profile is used to detect the tag delay. Experimental measurements up to 5 m are obtained. © 2015 IEEE.
Áreas temáticas: Telecommunications Interdisciplinar Engineering, electrical & electronic Engenharias iv Electrical and electronic engineering Astronomia / física
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: antonioramon.lazaro@urv.cat david.girbau@urv.cat ramon.villarino@urv.cat
Identificador del autor: 0000-0003-3160-5777 0000-0001-7995-5536 0000-0001-9692-8943
Fecha de alta del registro: 2024-10-26
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://ieeexplore.ieee.org/document/7177053
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Ieee Antennas And Wireless Propagation Letters. 15 618-621
Referencia de l'ítem segons les normes APA: Lazaro A; Ramos A; Girbau D; Villarino R (2016). Signal Processing Techniques for Chipless UWB RFID Thermal Threshold Detector Detection. Ieee Antennas And Wireless Propagation Letters, 15(), 618-621. DOI: 10.1109/LAWP.2015.2464680
DOI del artículo: 10.1109/LAWP.2015.2464680
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2016
Tipo de publicación: Journal Publications
Repositori URV