2013 IEEE Radar Conference (RadarCon13) 2013
DOI: 10.1109/radar.2013.6586040
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Cognitive radar for the localization of RFID transponders in dense multipath environments

Abstract: Abstract-High-accuracy localization remains a much desired but elusive feature for passive radio transponders as used in radio-frequency identification (RFID). We believe that the principle of cognitive radar can overcome the fundamental physical limitations hindering its implementation. We propose to jointly employ a narrowband radio to interrogate the transponders and an adaptive (ultra) wideband backscatter radio for the target tracking and for actuating, sensing, and learning the radio environment. This pa… Show more

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Cited by 9 publications
(12 citation statements)
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“…An intriguing approach towards this goal is the application of a cognitive radar [46]- [48]. The RFID tags namely provide a spatial sampling of the radio channel properties (at the tag positions) which yields a map of the radio environment that can be utilized for robust positioning and efficient resource allocation-key properties of a cognitive radar.…”
Section: Cognitive Positioning Of Rfid Transpondersmentioning
confidence: 99%
See 1 more Smart Citation
“…An intriguing approach towards this goal is the application of a cognitive radar [46]- [48]. The RFID tags namely provide a spatial sampling of the radio channel properties (at the tag positions) which yields a map of the radio environment that can be utilized for robust positioning and efficient resource allocation-key properties of a cognitive radar.…”
Section: Cognitive Positioning Of Rfid Transpondersmentioning
confidence: 99%
“…Visualize an application that aims at locating the merchandise in a fashion shop: Thousands of spatial samples may be collected throughout the shop floor, yielding a detailed picture of the propagation conditions. In [48] we propose to use time-reversal processing based on a known model of the deterministic MPCs to focus the transmitted UWB signals at the position of the RFID transponders. This strategy has been shown to improve the robustness in case of obstructed LOS paths.…”
Section: Cognitive Positioning Of Rfid Transpondersmentioning
confidence: 99%
“…At the beginning, the transmitter generates signal () st based on the TR processing, which is composed of an assembly of complex weighted gain and time delay components of pulse ( is the transmission delay of the LOS signal. TR processing has the intrinsic attributes to overcome the degeneration of pinhole channels caused by multipath propagation in indoor scenario, because it concentrates the radiant energy onto the target [7] after the LOS propagation's time between the transmitter and the target.…”
Section: System Modelmentioning
confidence: 99%
“…Different from the active localization, to use the deterministic MPCs between the target and the receiver, Time-reversal (TR) processing [6] has been used in backscatter channels [7], which can insure the signals coming from the transmitter arrive to the target at the same TOA by calibrating the delay parameters of signals. According to the energy focused on the target by TR processing, the passive targets scatter the signals using passive transponder, e.g., radio-frequency identification (RFID) tag.…”
Section: Introductionmentioning
confidence: 99%
“…Time-reversal processing (TR) [7], [8] for backscatter channels has been motivated in [9], to focus the energy onto RFID tags at certain positions and to separate the up-and downlink channels from one another. We analyze the impact of TR processing on the CRLB for multipath-assisted RFID localization in this paper.…”
Section: Introductionmentioning
confidence: 99%