Signal modeling and processing for physiological sensing through UWB radars

A very promising application of Ultra Wide-Band radar technology is the continuous monitoring of some physiological parameters, like those relevant to the breath and heartbeat activity, without the need of any invasive tool neither of any contact with the subject under analysis. This idea has already appeared in the literature since some time, but its practical feasibility and assessment is still an open issue. In this paper, we consider two possible scenarios, in which the UWB radar is in a fixed position (away from the subject) or worn by the subject under analysis. We characterize the signal and environment models, so that we can provide a numerical assessment of the radar performance and address algorithmic issues that affect it.