FMCW-Radar-Based Vital-Sign Monitoring of Multiple Patients

José María Muñoz-Ferreras, Jing Wang, Zhengyu Peng, Changzhi Li, Roberto Gómez-García

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

Abstract

Frequency-modulated continuous-wave (FMCW) radars have shown to be suitable for non-contact detection and monitoring of vital signs. Their coherent deramping-based architecture is beneficial in two aspects: i) it permits to attain high-resolution range profiles circumventing the necessity of expensive high-sampling-rate analog-to-digital converters and ii) its coherence feature enables a very-precise phase-based extraction of the range-displacement information. On the other hand, Doppler radars do not possess range resolution, leading to the fact that they can only detect the vital signs of a single patient with conventional baseband spectrum analysis. This work shows that FMCW radars can handle multiple patients located at different range cells. Simulations of vital-sign acquisitions confirm the isolation capabilities of FMCW radars in contrast to conventional Doppler radar systems.

Original languageEnglish
Title of host publicationIEEE MTT-S 2019 International Microwave Biomedical Conference, IMBioC 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538673959
DOIs
StatePublished - May 2019
Event2019 IEEE MTT-S International Microwave Biomedical Conference, IMBioC 2019 - Nanjing, China
Duration: May 6 2019May 8 2019

Publication series

NameIEEE MTT-S 2019 International Microwave Biomedical Conference, IMBioC 2019 - Proceedings

Conference

Conference2019 IEEE MTT-S International Microwave Biomedical Conference, IMBioC 2019
CountryChina
CityNanjing
Period05/6/1905/8/19

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Muñoz-Ferreras, J. M., Wang, J., Peng, Z., Li, C., & Gómez-García, R. (2019). FMCW-Radar-Based Vital-Sign Monitoring of Multiple Patients. In IEEE MTT-S 2019 International Microwave Biomedical Conference, IMBioC 2019 - Proceedings [8777845] (IEEE MTT-S 2019 International Microwave Biomedical Conference, IMBioC 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IMBIOC.2019.8777845