On models and approaches for human vital signs extraction from short range radar signals

Czerkawski, Mikolaj and Ilioudis, Christos and Clemente, Carmine and Michie, Craig and Andonovic, Ivan and Tachtatzis, Christos; (2020) On models and approaches for human vital signs extraction from short range radar signals. In: 2020 14th European Conference on Antennas and Propagation (EuCAP). IEEE, DNK. ISBN 978-88-31299-00-8

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    Abstract

    The paper centres on an assessment of the modelling approaches for the processing of signals in CW and FMCW radar-based systems for the detection of vital signs. It is shown that the use of the widely adopted phase extraction method, which relies on the approximation of the target as a single point scatterer, has limitations in respect of the simultaneous estimation of both respiratory and heart rates. A method based on a velocity spectrum is proposed as an alternative with the ability to treat a wider range of application scenarios.