Photo of Manuel D. Ortigueira
  • Portugal

Accepting PhD Students

  • 2132 Citations
  • 23 h-Index
1984 …2019

Research output per year

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Research Output at NOVA

FRAMEWORK FOR THE EVALUATION OF SPECTRAL ANALYSIS TECHNIQUES

Ortigueira, M. D. & Tribolet, J. M., 1 Jan 1984, In : ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 2, p. 22. 7. 1-22. 7. 4

Research output: Contribution to journalConference article

From a generalised Helmholtz decomposition theorem to fractional Maxwell equations

Ortigueira, M. D., Rivero, M. & Trujillo, J. J., May 2015, In : Communications In Nonlinear Science And Numerical Simulation. 22, 1-3, p. 1036-1049 14 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

Generalized GL, Caputo, and Riemann-Liouville derivatives for analytic functions

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, International Conference on Nonlinear Science and Complexity. p. 28-31

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

Generalized GL Fractional Derivative and its Laplace and Fourier Transform

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, PROCEEDINGS OF ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE. p. 1227-1231

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

16 Citations (Scopus)
15 Citations (Scopus)

Identifying a transfer function from a frequency response

Valério, D., Ortigueira, M. D. & da Costa, J. S., Apr 2008, In : Journal Of Computational And Nonlinear Dynamics. 3, 2, 021207.

Research output: Contribution to journalArticle

55 Citations (Scopus)

Identifying a transfer function from a frequency response

Ortigueira, M. D., Valério, D. & Da Costa, J. S., 2008, 2007 Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC2007. Vol. 5 PART B. p. 1405-1414 10 p.

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

2 Citations (Scopus)

Integer/fractional decomposition of the impulse response of fractional linear systems

Ortigueira, M. D., Tenreiro Machado, J., Rivero, M. & Trujillo, J. J., 15 Apr 2015, In : Signal Processing. 114, p. 85-88 4 p., 5738.

Research output: Contribution to journalArticle

10 Citations (Scopus)

MicroECG: An Integrated Platform for the Cardiac Arrythmia Detection and Characterization

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, IFIP Advances in Information and Communication Technology. Vol. 314. p. 367-373

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

Open Access

New insights into pseudo-fractional ARMA modelling

Ortigueira, M. D. & Serralheiro, A. J., 2004, ICCC 2004 - Second IEEE International Conference on Computational Cybernetics, Proceedings. Elmenreich, W., Haidinger, W. & Machado, J. A. T. (eds.). p. 391-394 4 p.

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

New quasi-orthogonal BCH-derived sequences for CDMA applications

Ricardo, C. N. E., Ortigueira, M. D. & Gerald, J. A. B., Nov 2007, In : European Transactions on Telecommunications. 18, 7, p. 803-810 8 p.

Research output: Contribution to journalArticle

New results on fractional linear prediction

Ortigueira, M. D. & Matos, C. J. C., 31 Mar 2015, 2001 European Control Conference, ECC 2001. Institute of Electrical and Electronics Engineers Inc., p. 1752-1757 6 p. 7076174

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

Novel polarization index evaluation formula and fractional-order dynamics in electric motor insulation resistance

Gonzalez, E. A., Petráš, I. & Ortigueira, M. D., 26 Jun 2018, In : Fractional Calculus and Applied Analysis. 21, 3, p. 613-627 15 p.

Research output: Contribution to journalArticle

Open Access
3 Citations (Scopus)

Observability and Controllability of Fractional Linear Dynamical Systems

Ortigueira, M. D., 1 Jan 2013, IFAC Joint Conference SSSC. p. 893-898

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

Open Access
5 Citations (Scopus)

On a not so Fast Fourier Transform

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

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

On a Unified Fractional Derivative

Ortigueira, M. D. & DEE Group Author, 1 Jan 2011, Proceedings of the 7th International ASME/IEEE Conference on Mechatronics & Embedded Systems and Applications. p. -

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

Open Access
1 Citation (Scopus)

On fractional vectorial calculus

Ortigueira, M. D. & Machado, J. T., 1 Aug 2018, In : Bulletin of the Polish Academy of Sciences: Technical Sciences. 66, 4, p. 389-402 14 p.

Research output: Contribution to journalArticle

Open Access
6 Citations (Scopus)

On the computation of the Mittag-Leffler function

Ortigueira, M. D., 2016.

Research output: Contribution to conferencePaper

On the computation of the multidimensional Mittag-Leffler function

Ortigueira, M. D., Lopes, A. M. & Machado, J. A. T., 1 Dec 2017, In : Communications In Nonlinear Science And Numerical Simulation. 53, p. 278-287 10 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

On the Estimation of the Autocorrelation Function

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, In : Discussiones Mathematicae: Probability and Statistics. 38, NA, p. 85-97

Research output: Contribution to journalArticle

On the Fractional Linear Scale Invariant Systems

Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, In : Ieee Transactions On Signal Processing. 58, 12, p. 6406-6410

Research output: Contribution to journalArticle

Open Access
6 Citations (Scopus)

On the fractional signals and systems

Ortigueira, M. D. & DEE Group Author, 1 Jan 2011, In : Signal Processing. 91, 3, p. 350-371

Research output: Contribution to journalArticle

Open Access
175 Citations (Scopus)

On the HHT, its problems, and some solutions

Rato, R. T., Ortigueira, M. D. & Batista, A. M. G., Aug 2008, In : Mechanical Systems and Signal Processing. 22, 6, p. 1374-1394 21 p.

Research output: Contribution to journalArticle

224 Citations (Scopus)

On the initial conditions in continuous-time fractional linear systems

Ortigueira, M. D., Nov 2003, In : Signal Processing. 83, 11, p. 2301-2309 9 p.

Research output: Contribution to journalArticle

58 Citations (Scopus)

ON THE LINEAR SCALE FRACTIONAL SYSTEMS An Application of the Fractional Quantum Derivative

Ortigueira, M. D. & DEE Group Author, 1 Jan 2009, ICINCO 2009: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON INFORMATICS IN CONTROL, AUTOMATION AND ROBOTICS. p. 196-202

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

1 Citation (Scopus)

On the Numerical Computation of the Mittag-Leffler Function

Ortigueira, M. D., Lopes, A. M. & Tenreiro Machado, J., Oct 2019, In : International Journal of Nonlinear Sciences and Numerical Simulation. 20, 6, p. 725-736

Research output: Contribution to journalArticle

1 Citation (Scopus)

On the particular solution of constant coefficient fractional differential equations

Ortigueira, M. D., 19 Aug 2014, In : Applied Mathematics and Computation. 245, NA, p. 255-260

Research output: Contribution to journalArticle

5 Citations (Scopus)

On the recursive solution to the normal equations: Some other results

Ortigueira, M. D., Mar 2014, In : Ieee Signal Processing Magazine. 31, 2, p. 140-142 3 p., 6739188.

Research output: Contribution to journalArticle

1 Citation (Scopus)

On the relation between the fractional Brownian motion and the fractional derivatives

Ortigueira, M. D. & Batista, A. M. G., 11 Feb 2008, In : Physics Letters. A, NA, p. 958-968 11 p.

Research output: Contribution to journalArticle

42 Citations (Scopus)

On the Singular Steady-State Output in Discrete-Time Linear Systems

Ortigueira, M. D., 2016.

Research output: Contribution to conferencePaper

On the 'walking dead' derivatives: Riemann-Liouville and Caputo

Ortigueira, M. D., 25 Nov 2014, 2014 International Conference on Fractional Differentiation and Its Applications, ICFDA 2014. Institute of Electrical and Electronics Engineers Inc., 6967433

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

8 Citations (Scopus)

Operational calculus for the solution of fractional differential equations with noncommensurate orders

Bengochea, G., Ortigueira, M. & Verde-Star, L., Jul 2019, (Accepted/In press) In : Mathematical Methods in the Applied Sciences.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Operational method for the solution of ordinary differential equations using Hermite series

Bengochea, G., Verde–star, L. & Ortigueira, M., 1 Jan 2018, In : Mathematical Communications. 23, 2, p. 279-293 15 p.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
2 Downloads (Pure)

Operational Solution to the Nonlinear Klein-Gordon Equation

Bengochea, G., Verde-Star, L. & Ortigueira, M., 1 Jan 2018, In : Communications in Theoretical Physics. 69, 5, p. 506-512 7 p.

Research output: Contribution to journalArticle

Open Access
File
2 Downloads (Pure)

Potential dementia biomarkers based on the time-varying micro structure of sleep EEG spindles

Ktonas, P. Y., Golemati, S., Xanthopoulos, P., Sakkalis, V., Ortigueira, M. D., Tsekou, H., Zervakis, M., Paparrigopoulos, T. & Soldates, C. R., 2007, 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07. p. 2464-2467 4 p. 4352827

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

16 Citations (Scopus)

Railscan: A Tool for the Detection and Quantification of Rail Corrugation

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, IFIP Advances in Information and Communication Technology. Vol. 314. p. 401-408

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

Open Access
6 Citations (Scopus)

Recursive-operational method to solve fractional linear systems

Bengochea, G. & Ortigueira, M., 2016, (Accepted/In press) In : Computers and Mathematics with Applications.

Research output: Contribution to journalArticle

Reducing bias in fractional order impedance estimation for lung function evaluation

Copot, D., De Keyser, R., Derom, E., Ortigueira, M. & Ionescu, C. M., 1 Jan 2018, In : Biomedical Signal Processing and Control. 39, p. 74-80 7 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Rhapsody in fractional

Machado, J. T., Lopes, A. M., Duarte, F. B. M., Ortigueira, M. D. & Rato, R. T., 2014, In : Fractional Calculus and Applied Analysis. 17, 4, p. 1188-1214

Research output: Contribution to journalArticle

30 Citations (Scopus)

Riesz potential versus fractional Laplacian

Ortigueira, M. D., Laleg-Kirati, T. M. & Machado, J. T., 1 Sep 2014, In : Journal of Statistical Mechanics: Theory and Experiment. stacks.iop.org/JSTAT/2014/P09032, NA, p. 1-11

Research output: Contribution to journalArticle

7 Citations (Scopus)

Short Time Fourier Transform and Automatic Visual Scoring for the Detection of Sleep Spindles

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, IFIP Advances in Information and Communication Technology. Vol. 372. p. 267-272

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

Open Access

Sleep spindles: Decomposition, parameterization and applications

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2011, IEEE Conference on Signal Processing and Communications Applications (SIU). p. 1181-1184

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

Open Access

Sleep Spindles Detection: a Mixed Method using STFT and WMSD

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2012, In : International Journal Of Bioelectromagnetism. 14, 4, p. 229-233

Research output: Contribution to journalArticle

Steady-state response of constant coefficient discrete-time differential systems

Ortigueira, M. D., Rivero, M. & Trujillo, J. J., 1 Jan 2016, In : Journal of King Saud University - Science. 28, 1, p. 29-32 4 p.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

System initial conditions vs derivative initial conditions

Coito, F. J. A. V. D., Ortigueira, M. D. & DEE Group Author, 1 Jan 2010, In : Computers & Mathematics With Applications. 59, 5, p. 1782-1789

Research output: Contribution to journalArticle

Open Access
37 Citations (Scopus)

The causal fractional derivatives

Ortigueira, M. D., 2011, Fractional Calculus for Scientists and Engineers. Vol. 84 LNEE. p. 5-41 37 p. (Lecture Notes in Electrical Engineering; vol. 84 LNEE).

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

The Empirical Mode Decomposition an Useful Tool for Signal Analysis

Batista, A. M. G., Ortigueira, M. D. & DEE Group Author, 1 Jan 2009, New Signal Processing Research. Nova Science Publishers, Inc., p. 455-475

Research output: Chapter in Book/Report/Conference proceedingChapter