A 96 GHz radar system for respiration and heart rate measurements

Author

Ayhan, S. ; Diebold, S. ; Scherr, S. ; Tessmann, A. ; Ambacher, O. ; Kallfass, I. ; Zwick, T.

Author_Institution

Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131, Germany

fYear

2012

fDate

17-22 June 2012

Firstpage

1

Lastpage

3

Abstract

Stand-off detection of vital signs with radar based sensors is a highly promising approach for applications in the field of medical surveillance, emergency and security. A 96 GHz continuous wave (CW) radar system based on waveguide-packaged MMIC radar components is set-up for accurate determination of human chest displacements. This displacement information is used for determination of heart beat and respiration rates by analyzing the relative phase difference between the transmitted and the received radar signal. The 96 GHz CW radar set-up is described and its boundaries and limitations are analyzed. Measurements using a person in 1 m distance as target are analyzed in time and frequency domain. The results are in good agreement with the actual behavior of the human target.

Keywords

Frequency domain analysis; Heart rate; Humans; Lighting; Radar antennas; Radar measurements; continuous wave radar; respiration and heart rate; vital sign detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International

Conference_Location

Montreal, QC, Canada

ISSN

0149-645X

Print_ISBN

978-1-4673-1085-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2012.6258401

Filename

6258401