Identification of Chipless Sensors in Cluttered Environments From 3D Radar Imagery and Polarimetry

This paper reports a new method for the identification of chipless sensors based on 3D radar imagery and polarimetry. Chipless pressure sensors are wirelessly interrogated in a highly reflective environment with a 24GHz FM-CW radar. A novel algorithm of identification based on the 3D distribution of radar echoes is proposed and applied to mitigate the clutter and identify multiple chipless pressure sensors. The electromagnetic footprint of each sensor is defined and advantageously used for identification purposes.