Abstract

An integrated remote wireless sensor to measure respiration and heart rate without any contact is presented. The low-power wireless sensor system uses RF transceiver with embedded DSP algorithm to monitor cardiac and respiratory activities. The prototype system is implemented using a quadrature Low-IF Bluetooth transceiver at 2.4 GHz with a 30 KHz single-side band reference tone. The low-IF signal is digitized at 100 KHz and the embedded DSP algorithm estimates the Doppler phase shift, while reducing the system noise, LO phase noise, 1/f noise, DC offset, and minimizes the clutter, multi-path and echo signals. A new Pattern Search in Noise Subspace (PSNS) algorithm is used to estimate the sub-HZ phase shift due to heart and respiratory movement. The prototype system is tested in the lab with multiple individuals at 5-20 ft distance with less than 5% error.

Original languageEnglish (US)
Title of host publicationIEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479972333
DOIs
StatePublished - Dec 4 2015
Event11th IEEE Biomedical Circuits and Systems Conference, BioCAS 2015 - Atlanta, United States
Duration: Oct 22 2015Oct 24 2015

Other

Other11th IEEE Biomedical Circuits and Systems Conference, BioCAS 2015
CountryUnited States
CityAtlanta
Period10/22/1510/24/15

Fingerprint

Vital Signs
transmitter receivers
Transceivers
Phase shift
Noise
Doppler Effect
phase shift
Bluetooth
prototypes
Sensors
Phase noise
Respiratory Rate
heart rate
sensors
respiration
clutter
estimates
Heart Rate
quadratures
echoes

Keywords

  • Biomedical monitoring
  • Biomedical telemetry
  • Doppler radar
  • MUSIC
  • Patient monitoring
  • Subspace spectrum estimation

ASJC Scopus subject areas

  • Biotechnology
  • Instrumentation
  • Biomedical Engineering
  • Electrical and Electronic Engineering

Cite this

Khunti, H., Krehbiel, J., Cheah, M., Bakkaloglu, B., & Kiaei, S. (2015). SSB transceiver for vital sign detection. In IEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings [7348417] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BioCAS.2015.7348417

SSB transceiver for vital sign detection. / Khunti, Hitesh; Krehbiel, James; Cheah, Michael; Bakkaloglu, Bertan; Kiaei, Sayfe.

IEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. 7348417.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Khunti, H, Krehbiel, J, Cheah, M, Bakkaloglu, B & Kiaei, S 2015, SSB transceiver for vital sign detection. in IEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings., 7348417, Institute of Electrical and Electronics Engineers Inc., 11th IEEE Biomedical Circuits and Systems Conference, BioCAS 2015, Atlanta, United States, 10/22/15. https://doi.org/10.1109/BioCAS.2015.7348417
Khunti H, Krehbiel J, Cheah M, Bakkaloglu B, Kiaei S. SSB transceiver for vital sign detection. In IEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. 7348417 https://doi.org/10.1109/BioCAS.2015.7348417
Khunti, Hitesh ; Krehbiel, James ; Cheah, Michael ; Bakkaloglu, Bertan ; Kiaei, Sayfe. / SSB transceiver for vital sign detection. IEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015.
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