作者: Antonio Cicone , Hau-Tieng Wu
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摘要: Despite the population of noninvasive, economic, comfortable, and easy-to-install photoplethysmography (PPG), it is still lacking a mathematically rigorous stable algorithm which able to simultaneously extract from single-channel PPG signal instantaneous heart rate (IHR) respiratory (IRR). In this paper, novel called deppG provided tackle challenge. composed two theoretically solid nonlinear-type time-frequency analyses techniques, de-shape short time Fourier transform synchrosqueezing transform, allows us physiological information in reliable way. To test its performance, addition validating by simulated discussing meaning "instantaneous", applied publicly available batch databases, Capnobase ICASSP 2015 processing cup. The former contains signals relative spontaneous or controlled breathing static patients, latter made up collected subjects doing intense physical activities. accuracies estimated IHR IRR are compared with ones obtained other methods, represent state-of-the-art field research. results suggest potential acquired widely wearable devices, even when subject carries out