Photo of Manuel D. Ortigueira
  • Portugal

Accepting PhD Students

  • 2032 Citations
  • 22 h-Index
1984 …2019

Research output per year

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Research Output at NOVA

A coherent approach to non-integer order derivatives

Ortigueira, M. D., Oct 2006, In : Signal Processing. 86, 10, p. 2505-2515 11 p.

Research output: Contribution to journalArticle

64 Citations (Scopus)

A Contribution for the Automatic Sleep Classification Based on the Itakura-Saito Spectral Distance

Rodrigues, R. A. P., Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, IFIP Advances in Information and Communication Technology. p. 374-381

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
2 Citations (Scopus)

A critical analysis of the Caputo–Fabrizio operator

Ortigueira, M. D. & Machado, J. T., 1 Jun 2018, In : Communications In Nonlinear Science And Numerical Simulation. 59, p. 608-611 4 p.

Research output: Contribution to journalComment/debate

Open Access
File
37 Citations (Scopus)
27 Downloads (Pure)

A fractional linear system view of the fractional brownian motion

Ortigueira, M. D. & Batista, A. G., Dec 2004, In : Nonlinear Dynamics. 38, 1-4, p. 295-303 9 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)

A generalized power series and its application in the inversion of transfer functions

Ortigueira, M. D., Trujillo, J. J., Martynyuk, V. I. & Coito, F. J. A. V. D., Feb 2015, In : Signal Processing. 107, p. 238-245 8 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

A multichannel time–frequency and multi-wavelet toolbox for uterine electromyography processing and visualisation

Batista, A., Najdi, S., Godinho, D. M., Martins, C., Serrano, M. D. F. C., Ortigueira, M. D. & Rato, R. T., 1 Sep 2016, In : Computers in Biology and Medicine. 76, p. 178-191 14 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

An alternative method for ARMA(p, q) model characterization of multipath fading channels

Mera, D., Tavares, G. & Ortigueira, M., 1 Jul 2015, 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2015. 7145681

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

An Automatic Sleep Spindle Detector based on WT, STFT and WMSD

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, In : Proceedings Of World Academy Of Science, Engineering And Technology. 68, NA, p. 2154-2157

Research output: Contribution to journalArticle

A New Approach to Rational Discrete-Time Approximations to Continuous-Time Fractional-Order Systems

Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, IFIP Advances in Information and Communication Technology. Vol. 372. p. 251-258

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access

A new least-squares approach to differintegration modeling

Ortigueira, M. D. & Serralheiro, A. J., Oct 2006, In : Signal Processing. 86, 10, p. 2582-2591 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

A new look at the fractionalization of the logistic equation

Ortigueira, M. & Bengochea, G., 1 Feb 2017, In : Physica A: Statistical Mechanics and its Applications. 467, p. 554-561 8 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

A New Look into the Discrete-Time Fractional Calculus: Derivatives and Exponentials

Ortigueira, M. D., 1 Jan 2013, Fractional Differentiation and its Applications. p. 629-634

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
7 Citations (Scopus)

A New Look into the Discrete-Time Fractional Calculus: Transform and Linear Systems

Coito, F. J. A. V. D. & Ortigueira, M. D., 1 Jan 2013, Workshop on Fractional Differentiation and its Applications. p. 635-640

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
4 Citations (Scopus)

A new symmetric fractional B-spline

Ortigueira, M. D., Nov 2003, In : Signal Processing. 83, 11, p. 2311-2318 8 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

An Improved Empirical Mode Decomposition for Long Signals

Ortigueira, M. D., 2016.

Research output: Contribution to conferencePaper

An introduction to the fractional continuous-time linear systems: The 21st century systems

Ortigueira, M. D., Sep 2008, In : IEEE Circuits and Systems Magazine. 8, 3, p. 19-26 8 p., 4609961.

Research output: Contribution to journalArticle

155 Citations (Scopus)

An operational approach to solve fractional continuous–time linear systems

Bengochea, G. & Ortigueira, M. D., Mar 2017, In : International Journal of Dynamics and Control. 5, 1, p. 61-71 11 p.

Research output: Contribution to journalArticle

Open Access
4 Citations (Scopus)

A real regularised fractional derivative

Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, In : Signal, Image And Video Processing. 6, SI3, p. 351-358

Research output: Contribution to journalArticle

Open Access
10 Citations (Scopus)

A recursive-operational approach with applications to linear differential systems

Bengochea, G. & Ortigueira, M., 1 Dec 2016, In : Journal of Applied Analysis. 22, 2, p. 131-139 9 p.

Research output: Contribution to journalArticle

Open Access
3 Citations (Scopus)

A Relation Between the Fractional Derivative and the Hilbert Transform

Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, Mathmod - International Conference on Mathematical Modelling. p. 597-599

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access

Are RL and C derivatives really useful?

Coito, F. J. A. V. D., Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, IFAC-FDA. p. -

Research output: Chapter in Book/Report/Conference proceedingConference contribution

ARMA Modelling for Sleep Disorders Diagnose

Batista, A. M. G. & Ortigueira, M. D., 1 Jan 2013, IFIP Advances in Information and Communication Technology. Vol. 394. p. 271-278

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
1 Citation (Scopus)

ARMA Modelling of Sleep Spindles

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2011, IFIP Advances in Information and Communication Technology. p. 341-348

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
3 Citations (Scopus)
4 Citations (Scopus)

A Sliding Window Empirical Mode Decomposition for Long Signals Algorithm

Ortigueira, M. D., Sep 2016, In : Sensors & Transducers Journal. 204, 9, p. 21-28 8 p.

Research output: Contribution to journalArticle

A unified approach to fractional derivatives

Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, In : Communications In Nonlinear Science And Numerical Simulation. 17, 12, p. 5151-5157

Research output: Contribution to journalArticle

Open Access
24 Citations (Scopus)
3 Citations (Scopus)

Comments on “Modeling fractional stochastic systems as non-random fractional dynamics driven Brownian motions”

Ortigueira, M. D. & DEE Group Author, 1 Jan 2009, In : Applied Mathematical Modelling. 33, 5, p. 2534-2537

Research output: Contribution to journalArticle

Open Access
7 Citations (Scopus)

Comments on “The fractional Laplace transform”

Ortigueira, M. D., 2014, In : Signal, Image And Video Processing. 8, 3, p. 489-490

Research output: Contribution to journalArticle

1 Citation (Scopus)
Open Access
12 Citations (Scopus)

Considerations about the choice of a differintegrator

Ortigueira, M. D., Machado, J. A. T. & Da Costa, J. S., 2004, ICCC 2004 - Second IEEE International Conference on Computational Cybernetics, Proceedings. Elmenreich, W., Haidinger, W. & Machado, J. A. T. (eds.). p. 385-389 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)
Open Access
File
3 Downloads (Pure)

Discrete-time differential systems

Ortigueira, M. D., Coito, F. J. A. V. D. & Trujillo, J. J., Feb 2015, In : Signal Processing. 107, SI, p. 198-217 20 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)

Exponentials and Laplace transforms on nonuniform time scales

Ortigueira, M. D., Torres, D. F. M. & Trujillo, J. J., 1 Oct 2016, In : Communications In Nonlinear Science And Numerical Simulation. 39, p. 252-270 19 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

FILTERS: Fractional vs Integer order

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2009, -. p. -

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fractional calculus applications in signals and systems

Ortigueira, M. D. & Machado, J. A. T., Oct 2006, In : Signal Processing. 86, 10, p. 2503-2504 2 p.

Research output: Contribution to journalEditorial

77 Citations (Scopus)

Fractional Calculus for Scientists and Engineers

Ortigueira, M. D. & DEE Group Author, 1 Jan 2011, Dordrecht: Springer. (Lecture Notes in Electrical Engineering; no. 84)

Research output: Book/ReportBook

Fractional central differences and derivatives

Ortigueira, M. D., 2006, 2nd IFAC Workshop on Fractional Differentiation and its Applications, FDA 2006 - Final Program. PART 1 ed. Vol. 2. p. 58-63 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Fractional central differences and derivatives

Ortigueira, M. D., Sep 2008, In : JOURNAL OF VIBRATION AND CONTROL. 14, 9-10, p. 1255-1266 12 p.

Research output: Contribution to journalArticle

50 Citations (Scopus)

Fractional derivatives: The perspective of system theory

Ortigueira, M. D. & Machado, J. T., 5 Feb 2019, In : Mathematics. 7, 2, 150.

Research output: Contribution to journalArticle

Open Access
File
12 Citations (Scopus)

Fractional Derivatives and Linear Systems

Ortigueira, M. D. & DEE Group Author, 1 Jan 2009, Mobile Computing Research and Applications. Nova Science Publishers, Inc., p. 219-269 (Computer Science, Technology and Application).

Research output: Chapter in Book/Report/Conference proceedingChapter

Fractional derivatives and periodic functions

Ortigueira, M. D., Machado, J. T. & Trujillo, J. J., 1 Mar 2017, In : International Journal of Dynamics and Control. 5, 1, p. 72-78 7 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Fractional discrete-time signal processing: Scale conversion and linear prediction

Ortigueira, M. D., Matos, C. J. C. & Piedade, M. S., Jul 2002, In : Nonlinear Dynamics. 29, 1-4, p. 173-190 18 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Fractional Filters: An Optimization Approach

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, IFIP Advances in Information and Communication Technology. Vol. 314. p. 361-366

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
4 Citations (Scopus)

Fractional Lower Order Moments in NMR: A New Measure of Tissue Complexity

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, International Symposium Mathematical Methods in Engineering. p. -

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fractional model of an electrochemical capacitor

Martynyuk, V. & Ortigueira, M., 2015, In : Signal Processing. 107, p. 355-360 6 p.

Research output: Contribution to journalArticle

Fractional model of the electrochemical capacitor relaxation phenomenon

Martynyuk, V., Ortigueira, M., Fedula, M. & Savenko, O., 1 Aug 2018, In : Bulletin of the Polish Academy of Sciences: Technical Sciences. 66, 4, p. 441-448 8 p.

Research output: Contribution to journalConference article

Open Access
1 Citation (Scopus)

Fractional signal processing and applications

Ortigueira, M. D., Ionescu, C. M., Machado, J. T. & Trujillo, J. J., Feb 2015, In : Signal Processing. 107, p. 197 1 p.

Research output: Contribution to journalEditorial

Open Access
28 Citations (Scopus)

Fractional signals and systems

Ortigueira, M. D., Machado, J. T. & Ostalczyk, P., 1 Aug 2018, In : Bulletin of the Polish Academy of Sciences: Technical Sciences. 66, 4, p. 385-388 4 p.

Research output: Contribution to journalEditorial

Open Access
1 Citation (Scopus)

Fractional signals and systems

Ortigueira, M. D., 1 Jan 2011, In : Signal Processing. 91, 3, p. 349-349

Research output: Contribution to journalBook/Film/Article review

Open Access
11 Citations (Scopus)