Dr. Etienne Perret participated in the 2022 IMS Conference that took place in Denver (United States) on 19-24 June 2022.
He presented the publication co-authored with Ashkan Azarfar and Nicolas Barbot “Vibration Sensing using Doppler-modulated Chipless RFID Tags”. This research has been undertaken in the framework of the ERC project SCATTERER ID.
ABSTRACT – The paper describes how chipless tags attached to non-metal vibrating objects can be utilized to sense the frequency and amplitude of mm-vibration without any calibration process, and to identify the tag from large distances in low microwave frequency band. It is demonstrated that micro-Doppler harmonics induced by vibrating high-resonant scatterers are more detectable than those induced by the vibrating object itself while the scatterers provide great area efficiency. Presented methods for vibration sensing and identification are experimentally validated for sub-millimeter vibrations at distances up to 8 meters.
KEYWORDS – Chipless Radio Frequency IDentification (RFID), Doppler effect, Resonant Scatterer, Vibration sensing.