Browsing by Author Ortigueira, M.D.

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Issue DateTitleAuthor(s)TypeAccess Type
Feb-2000Introduction to fractional linear systems. Part 1 : continuous-time caseOrtigueira, M.D.articleopenAccess
2000Introduction to fractional linear systems. Part 2: discrete-time caseOrtigueira, M.D.articleopenAccess
2008An introduction to the fractional continuous- time linear systems: the 21st century systemsOrtigueira, M.D.articleopenAccess
Jul-2008An introduction to the fractional continuous-time linear systemsOrtigueira, M.D.articleopenAccess
2003Low-voltage low-power CMOS analogue circuits for Gaussian and uniform noise generationEvans, G.; Goes, J.; Garção, A. Steiger; Ortigueira, M.D.; Paulino, N.; Lopes, J. SousaotheropenAccess
2002A new approach to the initial value problemOrtigueira, M.D.otheropenAccess
2004New insights into pseudo-fractional ARMA modellingOrtigueira, M.D.; Serralheiro, Antonio J.conferenceObjectopenAccess
Oct-2006A new least-squares approach to differintegration modelingOrtigueira, M.D.; Serralheiro, António J.articleopenAccess
Apr-2007New quasi-orthogonal BCH-derived sequences for CDMA applicationsOrtigueira, M.D.; Ricardo, Cesaltina N. E.; Gerald, José António B.articleopenAccess
2001New results on fractional linear predictionOrtigueira, M.D.; Matos, Carlos J. C.otheropenAccess
2003A new symmetric fractional B-splineOrtigueira, M.D.articleopenAccess
Apr-2008On the fractional central differences and derivativesOrtigueira, M.D.articleopenAccess
18-Jan-2008On the HHT, its problems, and some solutionsOrtigueira, M.D.; Rato, R.T.; Batista, A. G.articleopenAccess
2003On the initial conditions in continuous-time fractional linear systemsOrtigueira, M.D.articleopenAccess
Aug-2008On the relation between the fractional Brownian motion and the fractional derivativesOrtigueira, M.D.; Batista, A. G.articleopenAccess
2007Potential dementia biomarkers based on the time-varying microstructure of sleep EEG spindlesOrtigueira, M.D.; Ktonas, P. Y.; Golemati, S.; Xanthopoulos, P.conferenceObjectopenAccess
2007Pseudo-fractional ARMA modelling using a double Levinson recursionOrtigueira, M.D.; Serralheiro, António J.articleopenAccess
May-2006Riesz potential operators and inverses via fractional centred derivativesOrtigueira, M.D.articleopenAccess
2001A signal processing view of differintegrationOrtigueira, M.D.; Batista, A. G.otheropenAccess
Jun-2001Time-frequency and time-scale characterisation of the beat-by-beat high-resolution electrocardiogramOrtigueira, M.D.; Batista, A. G.; Rodrigues, J. MachadoworkingPaperopenAccess