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Chipless UWB RFID Tag Detection Using Continuous Wavelet Transform

Chipless UWB RFID Tag Detection Using Continuous Wavelet Transform,10.1109/LAWP.2011.2157299,IEEE Antennas and Wireless Propagation Letters,Antonio La

Chipless UWB RFID Tag Detection Using Continuous Wavelet Transform  
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The basic theory of operation of ultrawideband 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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