Chipless UWB RFID Tag Detection Using Continuous Wavelet Transform

Author

Lazaro, Antonio ; Ramos, A. ; Girbau, D. ; Villarino, R.

Author_Institution

Electron., Electr. & Automatics Eng. Dept., Univ. Rovira i Virgili, Tarragona, Spain

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

520

Lastpage

523

Abstract

The 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.

Keywords

object detection; radio receivers; radiofrequency identification; ultra wideband antennas; ultra wideband radar; wavelet transforms; chipless UWB RFID tag detection; chipless ultrawideband radiofrequency identification tag detection; continuous wavelet transform; radio receiver; signal-to-noise ratio; time-coded tags; ultrawideband antenna; ultrawideband radar; Continuous wavelet transforms; Delay; Radar antennas; Radiofrequency identification; Reflection; Continuous Wavelet Transform (CWT); radio frequency identification (RFID); ultrawideband (UWB);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2157299

Filename

5771975