Fast Acquisition of Heart Rate in Noncontact Vital Sign Radar Measurement Using Time-Window-Variation Technique

• Published in: IEEE transactions on instrumentation and measurement Vol. 65; no. 1; pp. 112 - 122
• Main Authors: Tu, Jianxuan, Lin, Jenshan
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.01.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acquisitions; Acquisitions & mergers; Arctangent demodulation; complex signal demodulation (CSD); Demodulation; Doppler radar; Fourier transforms; Frequency spectrum; frequency spectrum resolution; Harmonic analysis; Heart rate; heart rate (HR); Marketing; noncontact continuous-wave (CW) Doppler radar vital sign detection; Searching; short-period time window; Signal resolution; Time measurement; time window variation; Time-frequency analysis; Windows (intervals); short-period time window; complex signal demodulation (CSD); Arctangent demodulation; time window variation; heart rate (HR); frequency spectrum resolution; noncontact continuous-wave (CW) Doppler radar vital sign detection

The fast acquisition of heart rate (HR) is a challenge in noncontact vital sign detection using a Doppler radar system. Most of the previous studies use long-period time windows to guarantee a sufficient frequency spectrum resolution for HR measurement using the peak searching method on the frequenc...