UWB-radar based synchronous motion recognition using time-varying range-Doppler images

Motion recognition has long been a research topic in the field of ambient assisted living. Radar has a good application value in indoor activity monitoring due to its privacy protection and non-intrusive. In this study, the authors use an ultra-wideband (UWB) radar with the centre frequency of 7.25 GHz to receive the reflection signal. Time-frequency analysis is performed on the radar signal to at...