Stroke Volume Estimation from Respiratory Inductive Plethysmography: Double Empirical Decomposition

Figure 1

(a) Region of work in the case of cardiorespiratory signal obtained by RIP (modified image [19]). The dotted lines define the region of physiological variations of amplitude (a) and frequency (f) ratio. The bad separation of modes exists in zones 2 and 3. Our suggested double decomposition represents passing from A to B. (b) The target of the proposed algorithm is to eliminate mode mixing by changing the amplitude and frequency ratios of respiratory and cardiac activities from the mode mixing situation to the no-mode mixing situation.

(a)

(b)