Wireless sensing and identification based on radar cross section variability measurement of passive electromagnetic sensors
HAL (Le Centre pour la Communication Scientifique Directe)(2013)
摘要
In this paper, we present the wireless measurement of various physical quantities from the analysis of the radar cross section variability of passive electromagnetic sensors. The technique uses a millimeter frequency-modulated continuous-wave radar for both remote sensing and wireless identification of sensors. Long reading ranges (up to some decameters) are reached at the expense of poor measurement resolution (typically 10 %). A review of recent experimental results is reported for illustration purposes.
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关键词
Wireless sensor network,Passive sensor,Remote sensing,Backscattering,Frequency modulation,FMCW radar,Millimeter wave,Chipless RFID
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