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| Content Provider | IET Digital Library |
|---|---|
| Author | Lopes, Bernardo Varum, Tiago Matos, João N. |
| Abstract | A chipless radio frequency identification (RFID) system based on multi-resonant-based chipless RFID tags and fractional Fourier transform (FrFT) was simulated. Each tag codes a 3-bit unique identification (ID) in the form of a spectral signature in the interrogation signal. The signal is then backscattered to the processing unit (PU) for ID decoding. The simulated system accounts for two tags, 1 m apart and with a line-of-sight between them and the PU. At the PU, the received signals from the tags at 4 and 5 m present a signal-to-noise ratio of 7.9 and 4.0 dB, respectively. The signals from both tags collide in the time and frequency domain. FrFT is used at the PU to retrieve the ID of each tag by transforming the combined received signal from the time-frequency domain to a fractional domain where each backscattered signal takes its most compact form. Using Hamming windowing in the fractional domain, each ID was successfully recovered. This work puts chipless RFID one step closer to become a reality and replacing the barcode in the labelling market. |
| Starting Page | 1316 |
| Ending Page | 1322 |
| Page Count | 7 |
| ISSN | 17518725 |
| Volume Number | 14 |
| e-ISSN | 17518733 |
| Issue Number | Issue 12, Oct (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/14/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2020.0212 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2020-09-03 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Backscattered Signal Chipless Radio Frequency Identification System Chipless RFID Tags ID Recovery Code Distance 1.0 M Fourier Transforms Fractional Domain Fractional Fourier Transform FrFT Hamming Code Hamming Windowing ID Decoding Indoor Scenario Integral Transforms in Numerical Analysis Interrogation Signal Mathematical Analysis Multiresonant-based Chipless RFID Tags Processing Unit Radiofrequency Identification Received Signal RFID System Signal Processing And Detection Signal to Noise Ratio Spectral Signature Tag Code Tags Collide Time-frequency Analysis Time-frequency Domain Unique Identification Word Length 3 Bit |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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