Article ID Journal Published Year Pages File Type
10351774 Computers in Biology and Medicine 2005 19 Pages PDF
Abstract
The statistical properties of the time- and frequency-domain characteristics of heart rate variability are known to vary over time. A method is presented to compute the time-varying spectral contents of the characteristic narrow-band frequency components of heart rate variability by means of the instantaneous amplitude and frequency at an optimal time resolution. The instantaneous frequency may show oscillatory, but also irregular periods in time. An index of the instantaneous bandwidth is computed to discriminate between oscillatory and irregular periods and to correct the instantaneous amplitude and frequency for irregular periods.
Related Topics
Physical Sciences and Engineering Computer Science Computer Science Applications
Authors
, , ,