Biomedical subjects
Publications and source records attributed to S V Lebedeva.
The paper describes the structure and algorithm of a digital suppression filter for circuit noise at 50 Hz. The filter slightly corrupts an electrocardiographic signal.
Despite the fact that the duration of cardiac cycle complexes is a main diagnostic index in interpretation of ECG, a unified common approach to constructing measuring algorithms is lacking now. The paper reviews the methods of detection and measurement of the onset and termination of cardiographic complexes. Their link with the general theory of assessment by using the Fischer mathematical statistic methods, the Winner filtration methods, the approximation methods by spline functions and Kalman's filters is considered. An attempt was made to describe the pattern of cardiac cycle pulses on the basis of physiological processes of cardiac electric activity.