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Manuel Duarte Ortigueira
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2020 – today
- 2024
- [j52]Manuel Duarte Ortigueira
, Gabriel Bengochea
On Lebesgue Constants. Axioms 13(8): 505 (2024) - [j51]Manuel Duarte Ortigueira
Principles of fractional signal processing. Digit. Signal Process. 149: 104490 (2024) - [j50]Gabriel Bengochea
The causal α -exponential and the solution of fractional linear time-invariant systems. Int. J. Syst. Sci. 55(9): 1790-1806 (2024) - [j49]Manuel Duarte Ortigueira
A Factory of Fractional Derivatives. Symmetry 16(7): 814 (2024) - 2023
- [c21]Francisco Neves
Trans-Boolean Cyber Physical Systems. DoCEIS 2023: 290-300 - 2022
- [j48]Martim Almeida, Helena Mouriño
Electrohysterography extracted features dependency on anthropometric and pregnancy factors. Biomed. Signal Process. Control. 75: 103556 (2022) - [j47]Gabriel Bengochea
Fractional derivative of power type functions. Comput. Appl. Math. 41(8) (2022) - [j46]Filipa Esgalhado, Valentina Vassilenko
On the Feasibility of Real-Time HRV Estimation Using Overly Noisy PPG Signals. Comput. 11(12): 177 (2022) - [j45]Müfit San, Arnaldo Batista
A Preliminary Exploration of the Placental Position Influence on Uterine Electromyography Using Fractional Modelling. Sensors 22(5): 1704 (2022) - [j44]Daniela Martins, Arnaldo Batista
Adaptive Filtering for the Maternal Respiration Signal Attenuation in the Uterine Electromyogram. Sensors 22(19): 7638 (2022) - [j43]Filipa Esgalhado, Arnaldo Batista
Peak Detection and HRV Feature Evaluation on ECG and PPG Signals. Symmetry 14(6): 1139 (2022) - [c20]Filipa Esgalhado, Arnaldo Batista
Real-Time PPG-Based HRV Implementation Using Deep Learning and Simulink. DoCEIS 2022: 103-111 - 2021
- [j42]Arnaldo G. Batista
The contractiongram: A method for the visualization of uterine contraction evolution using the electrohysterogram. Biomed. Signal Process. Control. 67: 102531 (2021) - [j41]Manuel Duarte Ortigueira
Bilateral Tempered Fractional Derivatives. Symmetry 13(5): 823 (2021) - [c19]Filipa E. Cardoso, Valentina Vassilenko
Improvements on Signal Processing Algorithm for the VOPITB Equipment. DoCEIS 2021: 324-330 - 2020
- [j40]Filipa Esgalhado
Uterine contractions clustering based on electrohysterography. Comput. Biol. Medicine 123: 103897 (2020) - [j39]Manuel Duarte Ortigueira
On the properties of some operators under the perspective of fractional system theory. Commun. Nonlinear Sci. Numer. Simul. 82: 105022 (2020) - [c18]Filipa E. Cardoso, Arnaldo Batista
Idle Tone Detection in Biomedical Signals Using Time-Frequency Techniques. DoCEIS 2020: 445-453
2010 – 2019
- 2019
- [j38]Manuel Duarte Ortigueira
Variable order fractional systems. Commun. Nonlinear Sci. Numer. Simul. 71: 231-243 (2019) - 2018
- [j37]Dana Copot, Robin De Keyser, Eric Derom, Manuel Duarte Ortigueira
Reducing bias in fractional order impedance estimation for lung function evaluation. Biomed. Signal Process. Control. 39: 74-80 (2018) - [j36]Manuel Duarte Ortigueira
Corrigendum to "On the computation of the multidimensional Mittag-Leffler function" [Commun. Nonlinear Sci. Numer. Simulat. 53 (2017) 278-287]. Commun. Nonlinear Sci. Numer. Simul. 55: 355 (2018) - [j35]Manuel Duarte Ortigueira
A critical analysis of the Caputo-Fabrizio operator. Commun. Nonlinear Sci. Numer. Simul. 59: 608-611 (2018) - 2017
- [j34]Manuel Duarte Ortigueira
On the computation of the multidimensional Mittag-Leffler function. Commun. Nonlinear Sci. Numer. Simul. 53: 278-287 (2017) - 2016
- [j33]Arnaldo Batista
A multichannel time-frequency and multi-wavelet toolbox for uterine electromyography processing and visualisation. Comput. Biol. Medicine 76: 178-191 (2016) - [j32]Manuel Duarte Ortigueira
Exponentials and Laplace transforms on nonuniform time scales. Commun. Nonlinear Sci. Numer. Simul. 39: 252-270 (2016) - 2015
- [j31]Manuel Duarte Ortigueira
Comments on "Discretization of fractional order differentiator over Paley-Wiener space". Appl. Math. Comput. 270: 44-46 (2015) - [j30]Manuel Duarte Ortigueira
From a generalised Helmholtz decomposition theorem to fractional Maxwell equations. Commun. Nonlinear Sci. Numer. Simul. 22(Issues): 1036-1049 (2015) - [j29]Manuel Duarte Ortigueira
What is a fractional derivative? J. Comput. Phys. 293: 4-13 (2015) - [j28]Manuel Duarte Ortigueira
Fractional signal processing and applications. Signal Process. 107: 197 (2015) - [j27]Manuel Duarte Ortigueira
Discrete-time differential systems. Signal Process. 107: 198-217 (2015) - [j26]Manuel Duarte Ortigueira
A generalized power series and its application in the inversion of transfer functions. Signal Process. 107: 238-245 (2015) - [j25]Valeriy Martynyuk
Fractional model of an electrochemical capacitor. Signal Process. 107: 355-360 (2015) - [j24]Manuel Duarte Ortigueira
Integer/fractional decomposition of the impulse response of fractional linear systems. Signal Process. 114: 85-88 (2015) - 2014
- [j23]Manuel Duarte Ortigueira
A simple approach to the particular solution of constant coefficient ordinary differential equations. Appl. Math. Comput. 232: 254-260 (2014) - [j22]Manuel Duarte Ortigueira
On the particular solution of constant coefficient fractional differential equations. Appl. Math. Comput. 245: 255-260 (2014) - [j21]Manuel Duarte Ortigueira
Comments on "The fractional Laplace transform". Signal Image Video Process. 8(3): 489-490 (2014) - [j20]Manuel Duarte Ortigueira
On the Recursive Solution to the Normal Equations: Some Other Results [Lecture Notes]. IEEE Signal Process. Mag. 31(2): 140-142 (2014) - 2013
- [c17]João Caldas da Costa, Manuel Duarte Ortigueira
ARMA Modelling for Sleep Disorders Diagnose. DoCEIS 2013: 271-278 - 2012
- [j19]Manuel Duarte Ortigueira
The Incremental Ratio Based Causal fractional Calculus. Int. J. Bifurc. Chaos 22(4) (2012) - [j18]Manuel Duarte Ortigueira
A real regularised fractional derivative. Signal Image Video Process. 6(3): 351-358 (2012) - [c16]Carlos J. C. Matos, Manuel Duarte Ortigueira
A New Approach to Rational Discrete-Time Approximations to Continuous-Time Fractional-Order Systems. DoCEIS 2012: 251-258 - [c15]João Caldas da Costa, Manuel Duarte Ortigueira
Short Time Fourier Transform and Automatic Visual Scoring for the Detection of Sleep Spindles. DoCEIS 2012: 267-272 - 2011
- [b1]Manuel Duarte Ortigueira
Fractional Calculus for Scientists and Engineers. Lecture Notes in Electrical Engineering 84, Springer 2011, ISBN 978-94-007-0746-7, pp. 1-152 [contents] - [j17]Manuel Duarte Ortigueira
Fractional signals and systems. Signal Process. 91(3): 349 (2011) - [j16]Richard L. Magin, Manuel Duarte Ortigueira
On the fractional signals and systems. Signal Process. 91(3): 350-371 (2011) - [c14]João Caldas da Costa, Manuel Duarte Ortigueira
ARMA Modelling of Sleep Spindles. DoCEIS 2011: 341-348 - 2010
- [j15]Manuel Duarte Ortigueira
System initial conditions vs derivative initial conditions. Comput. Math. Appl. 59(5): 1782-1789 (2010) - [j14]Manuel Duarte Ortigueira
On the Fractional Linear Scale Invariant Systems. IEEE Trans. Signal Process. 58(12): 6406-6410 (2010) - [c13]Carlos J. C. Matos, Manuel Duarte Ortigueira
Fractional Filters: An Optimization Approach. DoCEIS 2010: 361-366 - [c12]Bruno Nascimento, Arnaldo Batista
MicroECG: An Integrated Platform for the Cardiac Arrythmia Detection and Characterization. DoCEIS 2010: 367-373 - [c11]Eduardo Cardoso, Arnaldo Batista
A Contribution for the Automatic Sleep Classification Based on the Itakura-Saito Spectral Distance. DoCEIS 2010: 374-381 - [c10]Rui Gomes, Arnaldo Batista
Railscan: A Tool for the Detection and Quantification of Rail Corrugation. DoCEIS 2010: 401-408
2000 – 2009
- 2009
- [c9]Manuel Duarte Ortigueira:
On the Linear Scale Fractional Systems - An Application of the Fractional Quantum Derivative. ICINCO-SPSMC 2009: 196-202 - 2007
- [j13]Cesaltina N. E. Ricardo, Manuel Duarte Ortigueira
Wireless Systems New quasi-orthogonal BCH-derived sequences for CDMA applications. Eur. Trans. Telecommun. 18(7): 803-810 (2007) - 2006
- [j12]Manuel Duarte Ortigueira:
Riesz potential operators and inverses via fractional centred derivatives. Int. J. Math. Math. Sci. 2006: 48391:1-48391:12 (2006) - [j11]Manuel Duarte Ortigueira
Fractional calculus applications in signals and systems. Signal Process. 86(10): 2503-2504 (2006) - [j10]Manuel Duarte Ortigueira
A coherent approach to non-integer order derivatives. Signal Process. 86(10): 2505-2515 (2006) - [j9]Manuel Duarte Ortigueira
A new least-squares approach to differintegration modeling. Signal Process. 86(10): 2582-2591 (2006) - 2005
- [j8]José A. L. Inácio, José António Beltran Gerald, Manuel Duarte Ortigueira
New PN Even Balanced Sequences for Spread-Spectrum Systems. EURASIP J. Wirel. Commun. Netw. 2005(3): 447-458 (2005) - 2003
- [j7]Manuel Duarte Ortigueira
Fractional signal processing and applications. Signal Process. 83(11): 2285-2286 (2003) - [j6]Manuel Duarte Ortigueira
On the initial conditions in continuous-time fractional linear systems. Signal Process. 83(11): 2301-2309 (2003) - [j5]Manuel Duarte Ortigueira
A new symmetric fractional B-spline. Signal Process. 83(11): 2311-2318 (2003) - [c8]Guiomar Evans, João Goes, Adolfo Steiger-Garção, Manuel Duarte Ortigueira
Low-voltage low-power CMOS analogue circuits for Gaussian and uniform noise generation. ISCAS (1) 2003: 145-148 - [c7]M. Unterweissacher, João Goes, Nuno F. Paulino, Guiomar Evans, Manuel Duarte Ortigueira:
Efficient digital self-calibration of video-rate pipeline ADCs using white Gaussian noise. ISCAS (1) 2003: 877-880 - 2001
- [j4]Manuel Duarte Ortigueira
The comb signal and its Fourier transform. Signal Process. 81(3): 581-592 (2001) - [c6]Manuel Duarte Ortigueira, Arnaldo G. Batista:
A signal processing view of differintegration. ECC 2001: 1744-1751 - [c5]Manuel Duarte Ortigueira
New results on fractional linear prediction. ECC 2001: 1752-1757
1990 – 1999
- 1997
- [c4]Manuel Duarte Ortigueira:
Fractional discrete-time linear systems. ICASSP 1997: 2241-2244 - 1996
- [j3]Manuel Duarte Ortigueira
A new algorithm for the factorization and inversion of recursively generated matrices. Signal Process. 52(1): 65-73 (1996) - 1993
- [j2]Manuel Duarte Ortigueira
ARMA realization from the reflection coefficient sequence. Signal Process. 32(3): 329-342 (1993) - 1991
- [j1]Manuel Duarte Ortigueira
Eigendecomposition versus singular value decomposition in adaptive array signal processing. Signal Process. 25(1): 35-49 (1991) - 1990
- [c3]Manuel Duarte Ortigueira
A weighted min-norm method with a recursive implementation. ICASSP 1990: 2703-2706
1980 – 1989
- 1984
- [c2]Manuel Duarte Ortigueira, José M. Tribolet:
A framework for the evaluation of spectral analysis techniques. ICASSP 1984: 247-250 - 1983
- [c1]Manuel Duarte Ortigueira, José M. Tribolet:
On the double Levinson recursion formulation of ARMA spectral estimation. ICASSP 1983: 1076-1079
Coauthor Index
aka: Arnaldo G. Batista
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