Figure 5
From: Assessment of pulse rate variability by the method of pulse frequency demodulation
Effects of convergence algorithm. Simulated pulse wave signal was generated by a source interval function with an abrupt increase from 700 to 1200 ms during 10 s (panel A). Panel B: demodulated pulse interval with data segmentation, Fr adaptation and Fr optimization (iteration) without Fc convergence (Fc was set at Fr/3). Panel C: demodulated pulse interval with data segmentation, Fr adaptation, Fr optimization (iteration) and Fc convergence (Fc was set at Fr/2 initially and then converged to Fr/3).