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On the Fractional Signals and Systems

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Title: On the Fractional Signals and Systems
Author(s): Magin, Richard; Ortigueira, Manuel D.; Podlubny, Igor; Trujillo, Juan
Subject(s): fractional calculus signal processing
Abstract: A look into Fractional Calculus and their applications from the Signal Processing point of view is done in this paper. A coherent approach to the fractional derivative is presented leading to notions that are, not only compatible with the classic, but constitute a true generalization. This means that the classic are recovered when the fractional domain is left. This happens in particular with the impulse response and transfer function. An interesting feature of the systems is in the causality that the fractional derivative imposes. The main properties of the derivatives and their representations are presented. A brief and general study of the fractional linear systems is done, by showing how to compute the impulse, step and frequecy responses, how to test the stability and how to insert the initial conditions. The practical realization problem is focussed and it is shown how to perform the input-ouput computations. Some Biomedical applications are described.
Issue Date: 2011-03
Publisher: Elsevier
Citation Info: Magin, R., Ortigueira, M. D., Podlubny, I., & Trujillo, J. 2011. On the fractional signals and systems. Signal Processing, 91(3): 350-371. DOI: 10.1016/j.sigpro.2010.08.003
Type: Article
Description: NOTICE: this is the author’s version of a work that was accepted for publication in Signal Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Signal Processing, [Vol 91, Issue 3, (March 2011)] DOI: 10.1016/j.sigpro.2010.08.003.
ISSN: 0165-1684
Date Available in INDIGO: 2011-05-27

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