METHOD AND SYSTEM FOR NON-CONTACT VITAL SIGN MONITORING

A signal acquisition system configured to track a physiologic signal of a person includes a first accelerometer having a first accelerometer channel configured to obtain information of a physiologic signal. The physiologic signal is obtained extracorporeally. A control circuit receives data from the first accelerometer channel to identify, using at least one harmonic template, a base frequency of the physiologic signal. The system applies a filter to establish a tracking signal initialized with the identified base frequency and stores and/or transmits the tracking signal as a representation of the physiologic signal. The system alternatively performs filtration and estimation operations to extract physiologic information including heart rate, heart rate variability, and respiration rate from the physiologic signal.