Publications

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2008
Rato, RT, Ortigueira M, Batista A.  2008.  The EMD and its use to identify system modes. International Workshop on New Trends in Science and Technology (NTST2008). Abstract
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Rato, RT, Ortigueira MD, Batista AG.  2008.  The EMD and its Use to Identify System Modes. Proceedings of the International Workshop on New Trends in Science and Technology. Abstract
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Rato, RT, Ortigueira MD, Batista AG.  2008.  The Empirical Mode Decomposition: A Useful Tool for Signal Analysis. New Signal Processing Research. , New York: Nova Science Publishers Abstract
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Rato, RT, Ortigueira MD, Batista AG.  2008.  On the HHT, its problems, and some solutions. Mechanical Systems and Signal Processing. :1374–1394. Abstract
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Ortigueira, MD, Batista AG.  2008.  On the relation between the fractional Brownian motion and the fractional derivatives. Physics Letters. A:958–968. Abstract
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2007
Ortigueira, MD, Batista AG.  2007.  A new look at the fractional Brownian motion definition. Conference on Multibody Systems, Nonlinear Dynamics and Control (MSNDC). : ASME IDETC07 Abstract
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2006
Ortigueira, M, Batista A.  2006.  On the fractional derivative of stationary stochastic processes, September. CST2006 & ECT2006 Conferences. Abstract
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Ortigueira, MD, Batista AG.  2006.  On the fractional derivative of stationary stochastic processes. CST2006 & ECT2006 Conferences. Abstract
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2005
Pinto, IV, Alves LB, Ortigueira M, Batista A.  2005.  ECG Wave Detector and Delineation with Wavelets, July. International Conference on Computational Intelligence in Medicine and Healthcare, CIMED 2005. Abstract
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BRITO PALMA, L, Coito FV, NEVES DA SILVA R.  2005.  Diagnosis of parametric faults based on identification and statistical methods. Decision and Control, 2005 and 2005 European Control Conference. CDC-ECC’05. 44th IEEE Conference on. :3838–3843.: IEEE Abstract

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BRITO PALMA, L, VIEIRA COITO F, NEVES DA SILVA R.  2005.  Robust fault diagnosis approach using analytical and knowledge based techniques applied to a water tank system. : CRL Abstract

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2004
Ortigueira, MD, Batista AG.  2004.  A Fractional Linear System View of the Fractional Brownian Motion, December. Nonlinear Dynamics. 38:295–303., Number 1-4: Springer AbstractWebsite

A definition of the fractional Brownian motion based on the fractional differintegrator characteristics is proposed and studied. It is shown that the model enjoys the usually required properties. A discrete-time version based in the backward difference and in the bilinear transformation is considered. Some results are presented.

Batista, AG, Ortigueira MD.  2004.  A Fractional Linear System View of the Fractional Brownian Motion. Nonlinear Dynamics. :295-303. Abstract
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2001
Batista, AG, Rodrigues JM, Ortigueira MD.  2001.  Time-Frequency and Time-Scale Characterisation of the Beat-by-Beat High-Resolution Electrocardiogram. Sixth Portuguese Conference on Biomedical Engineering Proceedings. Abstract
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1998
Batista, AG, English MJ.  1998.  "Ventricular Late Potential Analysis with Musical and Harmonic Wavelets. Medical Engineering and Physics. 20:773-779. Abstract
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1996
Batista, AG, English MJ.  1996.  A Multiresolution Wavelet Method for Charaterization of Ventricular Late Potentials. Computers in Cardiology. Abstract
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1990
Batista, AG.  1990.  Programmable Cardiac Simulator. 2nd Portuguese Congress of Biomedical Engineering. Abstract
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