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Notes on Differential RCS of Modulated Tag

Nicolas Barbot, Olivier Rance, Etienne Perret

  • RFID
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    Length: 00:06:05
27 Apr 2021

Differential RCS characterizes the aptitude of a tag to modulate the backscattered power and is classically estimated based on the variation of the in-phase and quadrature channels in the time domain. This paper presents the results detailed in [1] which introduces a generalization of the RCS backscattered by a tag and a new definition of the delta RCS in the frequency domain. The associated measurement is compared to the classical time domain based methods. Results show a good agreement with the different approaches with an error less than 0.5 dB and are only at 3.5 dB from the introduced bound.

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