Design Issues of Doppler Radar for Heart Rate Sensing — a Systematic Review (original) (raw)

Biomedical Engineering: Applications, Basis and Communications

Abstract

Since there is an emergency to find the soldiers/human beings who are alive at a distance in the situation of wars/natural disasters, heart rate (HR) measurement using radar is a novel approach. Antennas installed with doppler radar, which radiates and receives electromagnetic (EM) signals, are used for detecting heart rate vitality with the non-contact approach. In the previous literature, different antenna’s like metamaterial leaky-wave antenna, rectangular patch antenna with different polarizations as transmitter and receiver, and inverted F patch antenna were used to detect the HR. Each of these methods has its own merits and demerits. In this paper, a review has been done on the antenna design to detect the heart vibrations which infers the cardiac conduction rate in a non-contact approach along with its signal processing work for HR measurement. The design issues in the literature and their effects of the non-contact approach on the human body were discussed. Finally, the revi...

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