Pulse rate estimation using hydraulic bed sensor.
We propose in this paper an effective method to obtain the pulse rate from a hydraulic sensor that is placed under the mattress. The sensor captures the superposition of the ballistocardiogram (BCG) and the respiration signals. The BCG is modeled as the j-peak with a frequency modulation component. The proposed method utilizes the Hilbert transform to effectively capture the j-peak, which allows the pulse rate information to come out distinctively in the frequency domain. Among the five subjects tested, the error in pulse rate estimation is less than 1%.
ECE Dept., University of Missouri, USA. bsdg6@mail.missouri.edu
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D000328:Adult; D001450:Ballistocardiography; D015374:Biosensing Techniques / Q000379:methods*; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D012119:Respiration / Q000187:drug effects*