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    A Simple Soft Limiter Describing Function for Biomedical Applications


    de Paor, Annraoi and Ringwood, John (2006) A Simple Soft Limiter Describing Function for Biomedical Applications. IEEE transactions on biomedical engineering, 53 (7). pp. 1233-1240. ISSN 0018-9294

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    Abstract

    This paper suggests an arctangent function as a suitable parameterisation for the soft-limiting gain characteristic frequently encountered in models of biomedical systems. This function is shown, as an example, to fit the neural arc component of the baroreflex with the main contribution of the paper being the development of a simple describing function (DF) characteristic for the arctangent. The simple form of the DF allows transparency of the physiological parameters in, for example, stability analysis. For illustration, the derived DF is used to examine low-frequency limit cycles in blood pressure, sometimes termed Mayer waves.

    Item Type: Article
    Keywords: Baroreflex; describing function; limit cycle;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 6903
    Identification Number: https://doi.org/10.1109/TBME.2006.873681
    Depositing User: Professor John Ringwood
    Date Deposited: 21 Jan 2016 10:36
    Journal or Publication Title: IEEE transactions on biomedical engineering
    Publisher: IEEE
    Refereed: Yes
    URI:

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