Design of A Robust Noncontact Vital Signs (NCVS) Monitoring System Using Software defined radio (SDR)

Y. Liu, C. Sweeney, J. Hawkins, S. Rojas, J. Mayeda, Y. Tchatchoua, T. Q. Nguyen, D. Y.C. Lie

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A Doppler-based robust non-contact vital signs (NCVS) sensor system designed using a commercial software defined radio (SDR) box with LabView programming is reported in this work. The NCVS sensing system is designed to operate at the 2.4 GHz ISM band and with optimized transmit/receive settings on gain, filtering, intermediate frequency (IF), antenna placement, etc. We will describe the system GUI (graphic user interface) and the basic software and hardware design considerations and setup for this SDR-enable NCVS system. Our measurement data demonstrates that it can continuously monitor the real-time respiration rate (RR) and heart rate (HR) of student volunteers sitting in a chair 1.3 meters away consistently within 0.5/3 BPM (breath/beat per minute) compared with the reference RR/HR signals, respectively.

Original languageEnglish
Title of host publicationProceedings of the 2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems
Subtitle of host publicationMaking Waves in Texas, WMCS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665403092
DOIs
StatePublished - May 18 2021
Event2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2021 - Virtual, Online
Duration: May 18 2021May 20 2021

Publication series

NameProceedings of the 2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems: Making Waves in Texas, WMCS 2021

Conference

Conference2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2021
CityVirtual, Online
Period05/18/2105/20/21

Keywords

  • Biosensor
  • Intermediate Frequency (IF)
  • Non-contact Vital Signs (NCVS) Monitoring
  • Respiration Rate (RR)
  • Software Defined Radio (SDR)

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