A Prototype Novel Zero-IF Non-Contact Respiration Monitor Using Software Defined Radio (SDR)

Miguel Hernandez, Yves Tchatchoua, Tam Q. Nguyen, Donald Y.C. Lie

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

Abstract

We report a novel and robust non-contact vital signs (NCVS) sensor system capable of accurately monitoring the breathing rates (BR) of a human subject up to 1.8 m away. The NCVS sensor system is designed using an SDR (software defined radio) technology with a commercially available NI-2901 2-Channel SDR box that can operate from 70 MHz to 6 GHz, along with low-cost log-periodic dipole antennas (LPDA) and LabVIEW programming for signal processing to extract real-time vital signs data by direct-downconversion (i.e., zero-IF receiver). Statistical analysis of a large number of NCVS datasets shows the breathing rate readings are accurate, and consistently within 1 BPM (Breath-per-Minute) vs. data obtained from contact-based respiration belt. The experimental results validate the attractiveness and feasibility of this SDR-enabled NCVS sensor system for continuous remote monitoring of human BR for potential clinical and telemedicine applications. This work, to our best knowledge, reports and demonstrates the world's first robust SDR-based zero-IF non-contact respiration monitor.

Original languageEnglish
Title of host publication2020 IEEE 63rd International Midwest Symposium on Circuits and Systems, MWSCAS 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages69-72
Number of pages4
ISBN (Electronic)9781538629161
DOIs
StatePublished - Aug 2020
Event63rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2020 - Springfield, United States
Duration: Aug 9 2020Aug 12 2020

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2020-August
ISSN (Print)1548-3746

Conference

Conference63rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2020
CountryUnited States
CitySpringfield
Period08/9/2008/12/20

Keywords

  • Biosensor
  • Continuous Monitoring
  • Doppler Radar
  • Non-contact Vital Signs (NCVS)
  • Respiration Rate
  • Software Defined Radio (SDR)
  • Telemedicine

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