Heartbeat detection with Doppler radar based on estimation of average R-R interval using Viterbi algorithm

Tomoaki Ohtsuki, Eriko Mogi

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

4 Citations (Scopus)

Abstract

Vital signs are related to mental stress conditions. In particular, the variation of R-R interval (the peak-to-peak interval of heartbeats) reflects mental stress. For measuring heart rate, non-contact detection using Doppler radar has been studied in many works. In this paper, we propose an algorithm to detect periodic heartbeats for some periods in which the R-R intervals are almost equal. In the long term, the R-R intervals gradually vary, however, the R-R intervals are almost equal within a short period. To detect those periods, we assume that the R-R intervals always have almost equal intervals. Then, we detect periodic peaks appearing at almost the equal intervals by using the Viterbi algorithm. After detecting periodic peaks, we detect the periods during which the R-R intervals are almost equal, based on the variance of the detected peak-to-peak intervals. Moreover, we estimate an average R-R interval and find peaks that appear at the interval nearly equal to the estimated average R-R interval within each detected period. Experimental results show that the proposed algorithm improves RMSEs (root mean square error) of the R-R interval compared with the conventional methods.

Original languageEnglish
Title of host publication2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509032549
DOIs
Publication statusPublished - 2016 Dec 21
Event27th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2016 - Valencia, Spain
Duration: 2016 Sep 42016 Sep 8

Other

Other27th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2016
CountrySpain
CityValencia
Period16/9/416/9/8

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Ohtsuki, T., & Mogi, E. (2016). Heartbeat detection with Doppler radar based on estimation of average R-R interval using Viterbi algorithm. In 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2016 [7794965] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC.2016.7794965