A Tunable System for Contact-Less Heartbeat Detection and a Modeling Approach

Abstract

The aim of this work is to present a practical study to detect heartbeats from distance, as well as cardiopulmonary activity modeling and simulation, in order to separate the heart and the respiration signals. Using a Vector Network Analyzer, measurements are taken at 2.4, 5.8, 10, 16 and 60 GHz. The Matlab simulation permits comparing several signal processing techniques in order to identify the most accurate one.

Non-contact heart rate detection using periodic variation in Doppler frequency

“…It extracts heartbeat interval using the peak of power spectrum. In [5] and [6], they use the periodic phase shift resulting from chest motion. In addition, difference in the phase variation due to heartbeat, detected at different microwave frequencies from 2.4 GHz up to 60 GHz [7].…”