Title :
Dynamical behaviours of integral pulse frequency modulation (IPFM) model with a periodically-varied threshold
Author :
Kong, Jun ; Zhang, Yuan-ting ; Lu, WeiXue
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
An integral pulse frequency modulation (IPFM) model for physiological systems is studied with a periodically-varied threshold from the viewpoint of nonlinear dynamics. Some chaotic behaviours were observed in the simulation. The model may provide some explanations for complicated heart rhythms, especially some cardiac arrythymia
Keywords :
biocontrol; cardiovascular system; chaos; neurophysiology; nonlinear dynamical systems; physiological models; pulse frequency modulation; time series; IPFM model; cardiac arrythmia; chaotic behaviours; complicated heart rhythms; dynamical behaviour; integral pulse frequency modulation; nonlinear dynamics; periodically-varied threshold; physiological systems; simulation; Biological system modeling; Biomedical engineering; Chaos; Equations; Frequency modulation; Heart; Oscillators; Pulse modulation; Rhythm; Signal analysis;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.804154
