Cognitive radar for the localization of RFID transponders in dense multipath environments
作者： Klaus Witrisal , Erik Leitinger , Paul Meissner , Daniel Arnitz
DOI: 10.1109/RADAR.2013.6586040
关键词: Transmitter 、 Passive radar 、 Low probability of intercept radar 、 Frequency agility 、 Man-portable radar 、 Computer science 、 Backscatter 、 Secondary surveillance radar 、 Digital radio frequency memory 、 Radar tracker 、 Electronic engineering 、 Radar configurations and types 、 Radar lock-on 、 Radar 、 Transponder 、 Ultra wideband radar 、 Bistatic radar 、 Wideband 、 Pulse-Doppler radar 、 Fire-control radar 、 Radar engineering details 、 Continuous-wave radar
摘要: 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 fundamental physical limitations hindering its implementation. propose to jointly employ narrowband interrogate and an adaptive (ultra) wideband backscatter target tracking actuating, sensing, learning environment. This paper explores system model key processing perception-action cycle steps such secondary radar. At core is cycle, which consists transmitter receiver-side environment models representing channel conditions Bayesian trackers states. Multipath exploited improve robustness make optimum use radar's sensing capabilities. Feedback information derived from Cramer-Rao lower bound on position error. Initial results are presented basic proof principle.
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