26 resultados para Fractional derivative


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Physics Letters A, vol. 372; Issue 7

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IEE Proceedings - Vision, Image, and Signal Processing, Vol. 147, nº 1

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Proceedings of the European Control Conference, ECC’01, Porto, Portugal, September 2001

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Fractional central differences and derivatives are studied in this article. These are generalisations to real orders of the ordinary positive (even and odd) integer order differences and derivatives, and also coincide with the well known Riesz potentials. The coherence of these definitions is studied by applying the definitions to functions with Fourier transformable functions. Some properties of these derivatives are presented and particular cases studied.

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Applied Mathematical Modelling, Vol.33

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Journal of Vibration and Control, Vol. 14, Nº 9-10

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International Journal of Mathematics and Mathematical Sciences, Vol.2006

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Signal Processing, Vol. 83, nº 11

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Journal of Vibration and Control, 14(9–10): 1255–1266, 2008

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A brief introduction to the fractional continuous-time linear systems is presented. It will be done without needing a deep study of the fractional derivatives. We will show that the computation of the impulse and step responses is very similar to the classic. The main difference lies in the substitution of the exponential by the Mittag-Leffler function. We will present also the main formulae defining the fractional derivatives.

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IEEE CIRCUITS AND SYSTEMS MAGAZINE, Third Quarter

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Signal Processing, vol. 86, nº 10

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Signal Processing, Vol. 86, nº 10

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IET Control Theory & Applications, Vol. 1, Nº 1

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Signal Processing, Vol. 83, nº 11