HRV spectral estimation based on constrained Gaussian modeling in the nonstationary case
This definition of heart rate variability frequency bands is controversial because of possible changes in the frequency boundaries. We propose the constrained Gaussian modeling (CGM) method that dynamically models the power spectrum as a two Gaussian shapes mixture. A greater sensitivity was observed with the CGM method in the case of transitory cardiac events. The CGM method showed a better score in the case of a classification purpose.
hrv stft gaussian fitting fantasia database