Accurate Doppler Radar Noncontact Vital Sign Detection Using the RELAX Algorithm


We consider using a Doppler radar for accurate noncontact vital sign detection. The Doppler radar first captures and downconverts the wireless signal that is phase modulated by the physiological movements, and then identifies the human heartbeat and respiration rates by processing the baseband signal. When nonlinear Doppler phase modulation is employed to… (More)
DOI: 10.1109/TIM.2009.2025986


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