IEIE Transactions on Smart Processing and Computing

The Institute of Electronics and Information Engineers (대한전자공학회)
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Accurate Heartbeat Frequency Extraction Method using UWB Impulse Radar

  • Cho, Hui-Sup (Intelligent Devices and Systems Research Group, DGIST) ;
  • Park, Young-Jin (Intelligent Devices and Systems Research Group, DGIST)
  • Received : 2017.05.29
  • Accepted : 2017.07.07
  • Published : 2017.08.30
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Abstract

Non-invasive and non-restrictive methods for measuring the physiological functions of the human body are useful for health care, security, and surveillance. In this paper, a new method that extracts human heartbeat information by utilizing ultra-wideband (UWB) impulse radar is proposed. The amplitude spectra of received radar pulses reflected from the human body are accumulated at specific time intervals, and chirp z-transform (CZT) is used to extract the heartbeat frequency from the amplitude spectra. The heartbeat frequency can be extracted with high-frequency resolution in the frequency band of the heartbeat of interest using CZT. Experimental results to verify the performance of the proposed method show that a highly accurate extraction of the heartbeat frequency is possible using this method.

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