Vital Sign Localization and Measurement Using an LFMCW MIMO Radar

Non-contact vital sign monitoring offers several advantages over contact based methods in particular regarding user-friendliness. Measurements relying on the radar principle differentiate from other contactless techniques in its robustness. In order to allow convenient assessment of cardiopulmonary...

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Bibliographic Details
Main Authors: Weishaupt, Fabio, Walterscheid, Ingo, Biallawons, Oliver, Klare, Jens
Format: Conference Proceeding
Language:English
Subjects:
Fourier transforms
Frequency measurement
Heart beat
MIMO communication
Radar measurements
Signal processing
Online Access:Request full text
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Summary:Non-contact vital sign monitoring offers several advantages over contact based methods in particular regarding user-friendliness. Measurements relying on the radar principle differentiate from other contactless techniques in its robustness. In order to allow convenient assessment of cardiopulmonary activity a separation of the respiratory and cardiac components in the time domain is useful as shown by means of a signal model. A signal processing method to achieve this is developed by utilizing the empirical mode decomposition. Experiments were carried out to verify the proposed technique. Comparing the processed radar results with measurements of a gold standard reference, a successful heart rate estimation is demonstrated.
ISSN:2155-5753
DOI:10.23919/IRS.2018.8448229