Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms
Radio frequency (RF) tags have been widely used in inventory tracking, environmental monitoring, battlefield situational awareness, and combat identification due to their low cost, small size, and wireless functionality. This paper explores the application of active RF tags in outdoor environments r...
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| Format: | Article |
| Language: | English |
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Wiley
2011-11-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2011/156582 |
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| _version_ | 1832547927768170496 |
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| author | Qihe Pan Ram M. Narayanan |
| author_facet | Qihe Pan Ram M. Narayanan |
| author_sort | Qihe Pan |
| collection | DOAJ |
| description | Radio frequency (RF) tags have been widely used in inventory tracking, environmental monitoring, battlefield situational awareness, and combat identification due to their low cost, small size, and wireless functionality. This paper explores the application of active RF tags in outdoor environments responding to random noise radar interrogations with predetermined messages. A conceptual system design for communication between radar and RF tags using ultrawideband (UWB) noise waveforms is proposed and analyzed theoretically and via simulations. The tag structure comprises a sensing receiver and active receiver/transmitter. The sensing receiver senses the radar header consisting of a prearranged secret realization of the noise waveform. The active receiver/transmitter modulates the RF tag's message onto the radar interrogation signal through weighted tapped delays and reradiates the tag message back to the radar. System performance is evaluated in terms of symbol error probability in an additive white Gaussian noise (AWGN) channel. A technique to combat multipath interference is presented. It is shown that this system is capable of communicating a suite of messages from the tags to the radar. |
| format | Article |
| id | doaj-art-8235c80636974e6fb69da79929972e23 |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2011-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-8235c80636974e6fb69da79929972e232025-02-03T06:42:59ZengWileyInternational Journal of Distributed Sensor Networks1550-14772011-11-01710.1155/2011/156582156582Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar WaveformsQihe PanRam M. NarayananRadio frequency (RF) tags have been widely used in inventory tracking, environmental monitoring, battlefield situational awareness, and combat identification due to their low cost, small size, and wireless functionality. This paper explores the application of active RF tags in outdoor environments responding to random noise radar interrogations with predetermined messages. A conceptual system design for communication between radar and RF tags using ultrawideband (UWB) noise waveforms is proposed and analyzed theoretically and via simulations. The tag structure comprises a sensing receiver and active receiver/transmitter. The sensing receiver senses the radar header consisting of a prearranged secret realization of the noise waveform. The active receiver/transmitter modulates the RF tag's message onto the radar interrogation signal through weighted tapped delays and reradiates the tag message back to the radar. System performance is evaluated in terms of symbol error probability in an additive white Gaussian noise (AWGN) channel. A technique to combat multipath interference is presented. It is shown that this system is capable of communicating a suite of messages from the tags to the radar.https://doi.org/10.1155/2011/156582 |
| spellingShingle | Qihe Pan Ram M. Narayanan Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms International Journal of Distributed Sensor Networks |
| title | Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms |
| title_full | Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms |
| title_fullStr | Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms |
| title_full_unstemmed | Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms |
| title_short | Delay-Modulated RF Tag System Concept Using Ultrawideband Noise Radar Waveforms |
| title_sort | delay modulated rf tag system concept using ultrawideband noise radar waveforms |
| url | https://doi.org/10.1155/2011/156582 |
| work_keys_str_mv | AT qihepan delaymodulatedrftagsystemconceptusingultrawidebandnoiseradarwaveforms AT rammnarayanan delaymodulatedrftagsystemconceptusingultrawidebandnoiseradarwaveforms |