Chipless UWB RFID Tag Detection Using Continuous Wavelet Transform
2011; IEEE Antennas & Propagation Society; Volume: 10; Linguagem: Inglês
10.1109/lawp.2011.2157299
ISSN1548-5757
AutoresA. Lázaro, Ángel Ramos, David Girbau, Ramón Villarino,
Tópico(s)Antenna Design and Analysis
ResumoThe basic theory of operation of ultra wideband radio identification systems is explained in this letter. An experimental setup based on an ultrawideband radar working as a reader is proposed to measure time-coded tags. A method based on the Continuous Wavelet Transform is developed in order to overcome detection problems associated to a low signal-to-noise ratio at the receiver. Experimental results obtained with the ultrawideband radar and using an ultrawideband antenna connected to a delay line to emulate a tag are presented. A good improvement is achieved with this processing method.
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