Multicomponent Model of the Heart Rate Variability Change-point

The multicomponent model of the heart rate change-point taking into account its complex structure and reflecting the dynamics of the statistical characteristics changes in time is constructed. Such a model distinguishes a set of piecewise-stationary and piecewise-periodic random processes in the general class of non-stationary random processes with their characteristics change-point. This makes it possible to apply well-known methods of random signals processing to such nonstationary rhythmic cardiac signals.