Kinnane, Oliver and Ringwood, John and Kelly, Damien and Malpas, Simon
Describing Function Approximation For Biomedical Engineering Applications.
Proceedings, the Irish Signals and Systems Conference ISSC 2004, Belfast.
This paper focuses on the determination of suitable approximations for sigmoid-type nonlinear characteristics, which are common to physiological systems, particularly cardiovascular regulatory systems. These sigmoid nonlinearities have been implicated in the development of limit cycle oscillations in blood pressure. Approximations of the sigmoid are required since the describing function is not calculable for the all representations of the sigmoid characteristic. In this paper, we present a new approximation, which gives a better overall approximation of the sigmoid and hence, can assist the use of describing functions in the diagnostic analysis of cardiovascular function.
||Sigmoid; describing function; cardiovascular function;
||Science & Engineering > Electronic Engineering
Professor John Ringwood
||02 Jun 2010 15:45
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||Proceedings, the Irish Signals and Systems Conference ISSC 2004, Belfast
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