Model of human breathing reflected signal received by PN-UWB radar
Human detection is an integral component of civilian and military rescue operations, military surveillance and combat operations. Human detection can be achieved through monitoring of vital signs. In this article, a mathematical model of human breathing reflected signal received in PN-UWB radar is proposed. Unlike earlier published works, both chest and abdomen movements are considered for modeling the radar return signal along with the contributions of fundamental breathing frequency and its harmonics. Analyses of recorded reflected signals from three subjects in different postures and at different ranges from the radar indicate that ratios of the amplitudes of the harmonics contain information about posture and posture change.
|Keywords||displacement model, human breathing, UWB radar|
|Conference||2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014|
Mabrouk, M. (Mohamed), Rajan, S, Bolic, M. (Miodrag), Batkin, I. (Izmail), Dajani, H.R. (Hilmi R.), & Groza, V.Z. (Voicu Z.). (2014). Model of human breathing reflected signal received by PN-UWB radar. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 (pp. 4559–4562). doi:10.1109/EMBC.2014.6944638