Creating and sharing knowledge for telecommunications

IT Member Profile

... Francisco André Corrêa Alegria

Senior Researcher

Francisco Alegria

Academic position: Assistant Professor
Joining date: 01-01-2001
Roles in IT: Senior Researcher
Thematic Line: Basic Sciences and Enabling Technologies
Group: Instrumentation and Measurements – Lx

Email: Send Email
Address: IT – Lisboa
Instituto Superior Técnico - Torre Norte - Piso 10
Av. Rovisco Pais, 1
1049 - 001 Lisboa
Tel: +351 21 841 84 54
Fax: +351 21 841 84 72

Alternative Personal Web Page

ORCID iD
https://www.orcid.org/0000-0003-0854-489X

SCHOLAR

Scientific Achievements

  • PhD, Instituto Superior Técnico, 07-06-2002
  • MSc, Instituto Superior Técnico, 26-10-1997
  • Licenciatura, Instituto Superior Técnico, 31-10-1995
  • Instituto Superior Técnico, 12-03-1997, Associate Professor
  • Characterization of Analog to Digital Converters
  • Calibration of Measuring Instruments
  • Instrumentation and Measurement
11Lecture courses
3Supervision of MSc theses
As Supervisor
3Books
  • F. Alegria, The Electron and the Lamb Shift, World Scientific Publishing, Singapore, 2024,
    | BibTex
  • F. Alegria, Sensores e Atuadores, IST Press, Lisbon, 2021,
    | BibTex
  • F. Alegria, Sensors and Actuartors, World Scientific Publishing, Singapore, 2021,
    | BibTex
2Books Chapters
  • A. Moschita, D. M. Macii, F. Alegria, P. Carbone, Histogram-Based Techniques for ADC Testing, Chapter in, Design, Modeling and Testing of Data Converters - Signals and Communication Technology, P. Carbone, Sayfe Kiaei, Fang Xu, Springer, Berlin, 2013
  • E. Martinho, F. Alegria, C. G. Grangeia, A Dionísio, F. Almeida, Electrical Resistivity Imaging: Overview and a Case Study in Stone Cultural Heritage, Chapter in, 3D Imaging: Theory, Technology and Applications, Emerson H. Duke, Stephen R. Aguirre, Nova Publisher, 2010
55Papers in Journals
  • F. Alegria, Contribution of Jitter and Phase Noise to the Precision of Sinusoidal Amplitude Estimation Using Coherent Sampling, SCI, Vol. 7, No. 2, pp. 44 - 44, April, 2025,
    | Abstract     | Full text (PDF 3 MBs) | BibTex
  • F. Alegria, Phase Noise Influence on the Transfer Function Estimation of Analog to Digital Converters Using the Histogram Method, IEEE Access, Vol. 13, No., pp. 32051 - 32062, February, 2025,
    | Abstract     | Full text (PDF 5 MBs) | BibTex
  • F. Alegria, Expanding the IEEE 1057 Standard Jitter Test of Waveform Recorders to Include Simultaneous Voltage Noise Estimation, IEEE Access, Vol. 12, No. 1, pp. 103018 - 103025, August, 2024,
    | Abstract     | BibTex
  • F. Alegria, Uncertainty of the Initial Phase Estimation of a Sinewave in the Presence of Phase Noise, Additive Noise or Jitter, Journal of the Franklin Institute, Vol. 361, No. 15, pp. 107116 - 107116, July, 2024,
    | Abstract     | Full text (PDF 45 KBs) | BibTex
  • F. Alegria, L. X. Xie, D. Pasadas, Study of the Bias of the Initial Phase Estimation of a Sinewave of Known Frequency in the Presence of Phase Noise, Sensors, Vol. 24, No. 12, pp. 3730 - 3730, June, 2024,
    | Abstract     | Full text (PDF 403 KBs) | BibTex
  • L. X. Xie, P. Baskaran, A. L. Ribeiro, F. Alegria, H. Ramos, Classification of Corrosion Severity in SPCC Steels Using Eddy Current Testing and Supervised Machine Learning Models, Sensors, Vol. 24, No. 7, pp. 2259 - 2259, April, 2024,
    | Abstract     | Full text (PDF 5 MBs) | BibTex
  • F. Alegria, Using digital methods in active power measurement, Acta IMEKO, Vol. 12, No. 4, pp. 1 - 8, December, 2023,
    | Abstract     | BibTex
  • F. Alegria, Number of samples to use in estimating sinewave amplitude in the presence of noise, tm. technisches messen, Vol. 91, No. 2, pp. 116 - 121, November, 2023,
    | Abstract     | BibTex
  • F. Alegria, Precision of sinewave amplitude estimation in the presence of additive noise and quantization error, journal of electrical engineering, Vol. 74, No. 5, pp. 374 - 381, October, 2023,
    | Abstract     | BibTex
  • F. Alegria, Bias of the independently based gain and offset error in ADC testing using the histogram method, Measurement, Vol. 218, No. 1, pp. 113181 - 113181, August, 2023,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • F. Alegria, Linearity test of triangular waveform generators, tm. technisches messen, Vol. 90, No. 10, pp. 683 - 687, August, 2023,
    | Abstract     | BibTex
  • F. Alegria, Random noise test of analog-to-digital converters, Acta IMEKO, Vol. 12, No. 2, pp. 1 - 8, June, 2023,
    | Abstract     | BibTex
  • O. Canelas, R. Ferreira Lage Ferreira, S. L. Guillén Ludeña, F. Alegria, A. H. C. Heleno Cardoso, Three-dimensional flow structure at fixed 70° open-channel confluence with bed discordance, Journal of Hydraulic Research/De Recherches Hydrauliques, Vol. 1, No. 1, pp. 1 - 13, May, 2019,
    | Abstract     | Full text (PDF 2 MBs) | BibTex
  • S. L. Guillén Ludeña, M. P. F. Rodrigues Pereira da Franca, F. Alegria, A.J. Schleiss, A. H. C. Heleno Cardoso, Hydromorphodynamic effects of the width ratio and of a local tributary widening on discordant confluences, Geomorphology, Vol. 293, No. 1, pp. 289 - 304, September, 2017,
    | Abstract     | Full text (PDF 3 MBs) | BibTex
  • LM Mendes, F. Antico, P. Sanches, F. Alegria, R. Aleixo, R. Ferreira Lage Ferreira, A particle counting system for calculation of bedload fluxes, Measurement Science and Technology, Vol. 27, No. 12, pp. 125305 - 125305, October, 2016,
    | Abstract     | Full text (PDF 2 MBs) | BibTex
  • F. Alegria, Precision of Sinefitting-Based Total Harmonic Distortion Estimator, Metrology and Measurement Systems, Vol. XXIII, No. 1, pp. 37 - 46, March, 2016,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • J. Lopes, J. R. Rocha, Redondo, F. Alegria, Improvement of the Mass Spectrometry Process on an Ion Implantation, Open Journal of Optimization, Vol. 5, No. 1, pp. 31 - 34, March, 2016,
    | Abstract     | Full text (PDF 776 KBs) | BibTex
  • R. Queirós, F. Alegria, P.M. Girão, A. Serra, A multi-frequency method for ultrasonic ranging, Ultrasonics, Vol. 63, No. 1, pp. 86 - 93, December, 2015,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • F. Alegria, Measurement Challenges in Trying to Understand Our Brain, Measurement, Vol. 48, No. 8, pp. 2950 - 2962, October, 2013,
    | Abstract     | Full text (PDF 328 KBs) | BibTex
  • E. Martinho, M. A. Abreu, A. O. Oliveira, F. Alegria, M. E. P. Pampulha, Monitoring of Biophysicochemical Changes in a Silty Clay Soil Contaminated with LNAPL’s, Geoderma, Vol. 197-198, No. 1, pp. 108 - 116, April, 2013,
    | Abstract     | BibTex
  • F. Alegria, E. Molino-Minero-Re, S. Shariat-Panahi, Evaluation of a four-point sine wave frequency estimator for portable DSP based instrumentation, Measurement, Vol. 45, No. 7, pp. 1866 - 1871, August, 2012,
    | Abstract     | BibTex
  • E. Martinho, F. Alegria, A Dionísio, C. G. Grangeia, F. Almeida, 3D-resistivity imaging and distribution of water soluble salts in Portuguese Renaissance stone bas-reliefs, Engineering Geology, Vol. 141-142, No. 1, pp. 33 - 44, April, 2012,
    | Abstract     | Full text (PDF 3 MBs) | BibTex
  • F. Alegria, Precision of Harmonic Amplitude Estimation on Jitter Corrupted Data Using Sine Fitting, Signal Processing, Vol. 92, No. 3, pp. 807 - 818, March, 2012,
    | Abstract     | Full text (PDF 405 KBs) | BibTex
  • F. Alegria, Choosing Between Terminal and Independently Based Gain and Offset Error in the ADC Histogram Test, IEEE Transactions on Instrumentation and Measurement, Vol. 61, No. 1, pp. 9 - 16, January, 2012,
    | Abstract     | Full text (PDF 483 KBs) | BibTex
  • J. Lopes, F. Alegria, Redondo, J. R. Rocha, E. A. Alves, Mass spectrometry improvement on an high current ion implanter, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 269, No. 24, pp. 3222 - 3225, December, 2011 | Full text (PDF 521 KBs) | BibTex
  • F. Alegria, On the Bias of Terminal Based Gain and Offset Estimation Using the ADC Histogram Test Method, Metrology and Measurement Systems, Vol. 18, No. 1, pp. 3 - 12, March, 2011 | BibTex
  • R. Queirós, F. Alegria, P.M. Girão, A. Serra, Cross-correlation and Sine-fitting Techniques for High Resolution Ultrasonic Ranging, IEEE Transactions on Instrumentation and Measurement, Vol. 59, No. 12, pp. 3227 - 3236, December, 2010 | Full text (PDF 1 MB) | BibTex
  • F. Alegria, A. Serra, Gaussian Jitter Induced Bias of Sine Wave Amplitude Estimation Using Three-Parameter Sine Fitting, IEEE Transactions on Instrumentation and Measurement, Vol. 59, No. 9, pp. 2328 - 2333, September, 2010,
    | Abstract     | Full text (PDF 403 KBs) | BibTex
  • Lopes, F. Alegria, Redondo, J. R. Rocha, E. A. Alves, Computer Control of a 3 MV Van De Graaff Accelerator, Metrology and Measurement Systems, Vol. 17, No. 3, pp. na - na, August, 2010 | Full text (PDF 833 KBs) | BibTex
  • A. L. Ribeiro, F. Alegria, O. Postolache, H. Ramos, Liftoff Correction Based on the Spatial Spectral Behavior of Eddy-Current Images, IEEE Transactions on Instrumentation and Measurement, Vol. 59, No. 5, pp. 1362 - 1367, May, 2010,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • F. Alegria, Travassos, The Choice Between Analogue or Digital AC Power Measurement in a Vodafone Base Station Data Logger, Metrology and Measurement Systems, Vol. 17, No. 1, pp. 65 - 76, March, 2010 | Full text (PDF 409 KBs) | BibTex
  • E. Martinho, M. A. Abreu, M. P. Pampulha, F. Alegria, A. O. Oliveira, F. Almeida, An Experimental Study of the Diesel Biodegradation Effects on Soil Biogeophysical Parameters, Water, Air, and Soil Pollution, Vol. 206, No. 1, pp. 139 - 154, January, 2010 | Full text (PDF 479 KBs) | BibTex
  • F. Alegria, Study of the Random Noise Test of Analog-to-Digital Converters, Metrology and Measurement Systems, Vol. 16, No. 4, pp. 545 - 556, December, 2009 | Full text (PDF 1 MB) | BibTex
  • F. Alegria, A. Serra, The Histogram Test of ADCs with Sinusoidal Stimulus is Unbiased by Phase Noise, IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 11, pp. 3847 - 3854, November, 2009,
    | Abstract     | Full text (PDF 635 KBs) | BibTex
  • F. Alegria, Contribution of Jitter to the Error of Amplitude Estimation of a Sinusoidal Signal, Metrology and Measurement Systems, Vol. 16, No. 3, pp. 465 - 478, October, 2009 | Full text (PDF 260 KBs) | BibTex
  • F. Alegria, E. Martinho, F. Almeida, Measuring soil contamination with the time domain induced polarization method using LabVIEW, Measurement, Vol. 42, No. 7, pp. 1082 - 1091, August, 2009,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • S. Shariat-Panahi, F. Alegria, A. Manuel, A. Serra, IEEE 1057 Jitter Test of Waveform Recorders, IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 7, pp. 2234 - 2244, July, 2009,
    | Abstract     | Full text (PDF 653 KBs) | BibTex
  • F. Alegria, Bias of amplitude estimation using three-parameter sine fitting in the presence of additive noise, Measurement, Vol. 42, No. 5, pp. 748 - 756, June, 2009 | Full text (PDF 365 KBs) | BibTex
  • S. Shariat-Panahi, F. Alegria, A. Manuel, Design and Test of a High Resolution Acquisition System for Marine Seismology, IEEE Instrumentation & Measurement Magazine, Vol. 12, No. 2, pp. 8 - 15, April, 2009,
    | Abstract     | Full text (PDF 4 MBs) | BibTex
  • F. Alegria, A. Serra, Precision of Independently Based Gain and Offset Error of an ADC using the Histogram Method, IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 3, pp. 512 - 521, March, 2009,
    | Abstract     | Full text (PDF 377 KBs) | BibTex
  • F. Alegria, A. Serra, Standard Histogram Test Precision of ADC Gain and Offset Error Estimation, IEEE Transactions on Instrumentation and Measurement, Vol. 56, No. 5, pp. 1527 - 1531, October, 2007 | Full text (PDF 187 KBs) | BibTex
  • F. Alegria, A. Serra, ADC Transfer Function Types - A Review, Computer Standards and Interfaces, Vol. 28, No. 5, pp. 553 - 559, June, 2006 | Full text (PDF 222 KBs) | BibTex
  • F. Alegria, A. Serra, Overdrive in the Ramp Histogram Test of ADCs, IEEE Transactions on Instrumentation and Measurement, Vol. 54, No. 6, pp. 2305 - 2309, December, 2005 | Full text (PDF 234 KBs) | BibTex
  • F. Alegria, A. Moschita, P. Carbone, A. Serra, D. Petri, Effective ADC Linearity Testing, IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 52, No. 7, pp. 1267 - 1275, July, 2005 | Full text (PDF 668 KBs) | BibTex
  • F. Alegria, A. Serra, Uncertainty of ADC Random Noise Estimates Obtained With the IEEE 1057 Standard Test, IEEE Transactions on Instrumentation and Measurement, Vol. 54, No. 1, pp. 110 - 116, February, 2005 | Full text (PDF 293 KBs) | BibTex
  • F. Alegria, P.M. Girão, V. Haasz, A. Serra, Performance of Data Acquisition Systems from User’s Point of View, IEEE Transactions on Instrumentation and Measurement, Vol. 53, No. 4, pp. 907 - 914, August, 2004 | Full text (PDF 258 KBs) | BibTex
  • F. Alegria, A. Serra, Error in the estimation of transition voltages with the standard histogram test of ADCs, Measurement, Vol. 35, No. 4, pp. 389 - 397, June, 2004 | Full text (PDF 500 KBs) | BibTex
  • A. Serra, F. Alegria, RCM Martins, M. F. Silva, Analog to digital converters testing – New proposals, Computer Standards and Interfaces, Vol. 26, No. 1, pp. 3 - 13, January, 2004 | BibTex
  • F. Alegria, A. Serra, Variance of the cumulative histogram of ADCs due to frequency errors, IEEE Transactions on Instrumentation and Measurement, Vol. 52, No. 1, pp. 69 - 74, February, 2003 | BibTex
  • P Arpaia, A. Serra, P. Daponte, F. Alegria, Performance analysis of an ADC histogram test using small triangular waves, IEEE Transactions on Instrumentation and Measurement, Vol. 51, No. 4, pp. 723 - 729, August, 2002 | BibTex
  • F. Alegria, P Arpaia, A. Serra, P. Daponte, Performance Analysis of an ADC Histogram Test Using Small Triangular Waves, IEEE Transactions on Instrumentation and Measurement, Vol. 51, No. 4, pp. 723 - 729, August, 2002 | Full text (PDF 403 KBs) | BibTex
  • F. Alegria, A. Serra, An ADC Histogram Test Based on Small-Amplitude Waves, Measurement, Vol. 31, No. 4, pp. 271 - 279, June, 2002 | Full text (PDF 585 KBs) | BibTex
  • F. Alegria, A. Serra, Influence of Frequency Errors in the Variance of the Cumulative Histogram, IEEE Transactions on Instrumentation and Measurement, Vol. 50, No. 2, pp. 461 - 464, April, 2001 | Full text (PDF 131 KBs) | BibTex
  • F. Alegria, A. Serra, Computer Vision Aplied to the Autmatic Calibration of Measuring Instruments, Measurement, Vol. 28, No. 3, pp. 185 - 195, October, 2000 | Full text (PDF 2 MBs) | BibTex
  • F. Alegria, A. Serra, Automatic Calibration of Analog and Digital Measuring Instruments Using Computer Vision, IEEE Transactions on Instrumentation and Measurement, Vol. 49, No. 1, pp. 94 - 99, February, 2000 | Full text (PDF 379 KBs) | BibTex
47Papers in Conferences
  • F. Antico, P. Sanches, LM Mendes, F. Alegria, R. Aleixo, R. Ferreira Lage Ferreira, A particle counter prototype and video imaging techniques for calculation of bedload fluxes, International Symposium on River Sedimentation, Stuttgart, Germany, Vol. 1, pp. 19 - 22, September, 2016 | BibTex
  • R. Aleixo, LM Mendes, F. Antico, P. Sanches, F. Alegria, R. Ferreira Lage Ferreira, Assessment Of Video Imaging And Particle Counting Techniques For Calculation Of Bedload Fluxes, IAHR World Congress, The Hague, Netherlands, Vol. 1, pp. 1 - 1, July, 2015 | BibTex
  • F. Alegria, O. B. Birhukova, S. L. Guillén Ludeña, A. H. C. Heleno Cardoso, Three dimensional flow field at confluent fixed-bed open channels, River Flow, Lausanne, Switzerland, Vol. 1, pp. 1007 - 1014, September, 2014,
    | Abstract     | BibTex
  • J. Lopes, J. Rocha, Redondo, F. Alegria, High Resolution Ion Beam Profile Measurement System, International Conf. on Accelerator and Large Experimental Physics Control Systems - icalepcs, Grenoble, France, Vol. 1, pp. 164 - 167, October, 2011 | BibTex
  • F. Alegria, A Dionísio, F. Almeida, E. Martinho, 3-D Electrical Resistivity Imaging as a Smart Monitoring Method for Identification of Moisture Sources in Stone Cultural Heritage, European Workshop on Cultural Heritage Perservation - EWCHP, Berlin, Germany, Vol. 1, pp. 218 - 223, September, 2011 | BibTex
  • D. Pasadas, H. Ramos, F. Alegria, Handheld Instrument to Detect Defects in Conductive Plates with a Planar Probe, IEEE Instrumentation and Measurement Technology Conf., Shangai, China, Vol. 00, pp. 144 - 149, May, 2011,
    | Abstract     | Full text (PDF 444 KBs) | BibTex
  • J. Lopes, F. Alegria, Redondo, Optimization of a Mass Spectrometry Process, International Conf. on the Application of Accelerators in Research and Industry - CAARI 2010, Fort Worth, United States, Vol. 1336, pp. 67 - 69, August, 2010 | BibTex
  • F. Alegria, A. Serra, Comparison Between Two Digital Methods for Active Power Measurement, IEEE International Conf. on Industrial Technology, Viña del Mar, Chile, Vol. -, pp. - - -, March, 2010,
    | Abstract     | Full text (PDF 317 KBs) | BibTex
  • F. Alegria, F. Carvalho, P. Agulha, D. Pasadas, O. Postolache, H. Ramos, A. L. Ribeiro, 2D Magnetic Field Mobile Sensing System for Eddy Current Testing, IEEE Sensors, Christchurch, New Zealand, Vol. -, pp. - - -, October, 2009,
    | Abstract     | Full text (PDF 571 KBs) | BibTex
  • F. Alegria, H. Ramos, City-Wide Mobile Air Quality Measurement System, IEEE Sensors, Christchurch, New Zealand, Vol. -, pp. - - -, October, 2009,
    | Abstract     | Full text (PDF 726 KBs) | BibTex
  • O. Postolache, H. Ramos, A. L. Ribeiro, F. Alegria, GMR Based Eddy Current Sensing Probe for Weld Zone Testing, IEEE Sensors, Chrischurch, New Zealand, Vol. 1, pp. 73 - 78, October, 2009,
    | Abstract     | BibTex
  • F. Alegria, Comparison of the Precision of Gain and Offset Estimations Obtained with the Histogram Test of ADCs, IMEKO World Congress, Lisbon, Portugal, Vol. -, pp. - - -, September, 2009 | Full text (PDF 67 KBs) | BibTex
  • F. Alegria, Bias In ADC Terminal Based Gain and Offset Estimation Using the Histogram Method, IMEKO, Lisbon, Portugal, Vol. -, pp. - - -, September, 2009 | Full text (PDF 67 KBs) | BibTex
  • F. Alegria, Error in the IEEE 1057 Standard Random Noise Test of ADCs, IMEKO, Lisbon, Portugal, Vol. -, pp. - - -, September, 2009 | Full text (PDF 132 KBs) | BibTex
  • F. Alegria, Using Sinusoidal Instead of Triangular Stimulus Signals on the IEEE 1057 Standard Random Noise Test of ADCs, IMEKO, Lisbon, Portugal, Vol. -, pp. - - -, September, 2009 | Full text (PDF 61 KBs) | BibTex
  • H. Ramos, A. L. Ribeiro, F. Alegria, O. Postolache, M. Simões, J. Pimentel, P. Maurício, J. Calvário, A. Carvalho, T. Rocha, Using a Mouse Pointer as a Positioning Device in Eddy Current Testing, IMEKO World Congress, Lisbon, Portugal, Vol. 1, pp. 518 - 521, September, 2009,
    | Abstract     | BibTex
  • H. Ramos, O. Postolache, F. Alegria, A. L. Ribeiro, Using the Skin Effect to Estimate Cracks Depths in Mettalic Structures, IEEE Instrumentation and Measurement Technology Conf., Singapore, Singapore, Vol. CD, pp. 1361 - 1366, May, 2009,
    | Abstract     | BibTex
  • H. Ramos, A. L. Ribeiro, O. Postolache, F. Alegria, Virtual Instrument to Detect Defects in Conductive Materials, Conf. on Telecommunications - ConfTele, Sta Maria da Feira, Portugal, Vol. 1, pp. 137 - 140, May, 2009,
    | Abstract     | BibTex
  • A. L. Ribeiro, F. Alegria, O. Postolache, H. Ramos, Eddy Current Inspection of a Duralumin Plate, IEEE Instrumentation and Measurement Technology Conf., Singapore, Singapore, Vol. CD, pp. 1367 - 1371, May, 2009,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • Travassos, F. Alegria, Automatic Monitoring of a Vodafone Radiocommunication Base Station, IAENG International Conf. of Electrical and Electronics Engineering - ICEEE, London, United Kingdom, Vol. -, pp. - - -, July, 2008,
    | Abstract     | Full text (PDF 486 KBs) | BibTex
  • Lopes, F. Alegria, Redondo, Automation of a Particle Accelerator Operation Using LabVIEW, IAENG International Conf. of Electrical and Electronics Engineering - ICEEE, London, United Kingdom, Vol. -, pp. - - -, July, 2008,
    | Abstract     | Full text (PDF 468 KBs) | BibTex
  • F. Alegria, A. Serra, Uncertainry Analysis of the ADC Histogram Test Using Triangular Stimulus Signals, Workshop on ADC Modelling and Testing, Iasi, Romania, Vol. -, pp. - - -, September, 2007 | BibTex
  • F. Alegria, Proposal for High Accuracy Linearity Test of Triangular Waveform Generators, IEEE AFRICON Conf. in Africa, Wondhoek, Namibia, Vol. -, pp. - - -, September, 2007 | BibTex
  • S. Shariat-Panahi, F. Alegria, A. Manuel, A. Serra, Time Base Error Characterization of a Data Recorder Aimed for Marine Seismology, IEEE Instrumentation and Measurement Technology Conf., Warsow, Poland, Vol. -, pp. - - -, May, 2007 | BibTex
  • L. Sousa, F. Alegria, J. Germano, Developing and integrating lab projects as important learning components in an embedded systems course, International Conf. on Microelectronic Systems Education, San Diego, United States, Vol. -, pp. - - -, April, 2007 | BibTex
  • P.M. Girão, F. Alegria, Wireless System for Traffic Control and Law Enforcement, IEEE International Conf. on Industrial Technology, Mumbai, India, Vol. 1, pp. 1768 - 1770, December, 2006 | BibTex
  • F. Alegria, P.M. Girão, Vehicle Plate Recognition for Wireless Traffic Control and Law Enforcement System, International Conference on Industrial Technology ICIT 2006, Mumbai, India, Vol. 1, pp. 1800 - 1804, December, 2006 | BibTex
  • F. Alegria, A. Serra, Uncertainty of the estimates obtained with the histogram test of ADCs, IMEKO World Congress, Rio de Janeiro, Brazil, Vol. -, pp. - - -, September, 2006 | BibTex
  • F. Alegria, S. Shariat-Panahi, A. Manuel, A. Serra, Characterization of a High Resolution Acquisition System For Marine Geophysical Applications, IEEE Instrumentation and Measurement Technology Conf., Sorrento, Italy, Vol. -, pp. 1317 - 1320, April, 2006 | BibTex
  • F. Alegria, A. Serra, The Histogram Test of ADCs is Unbiased by Phase Noise, IEEE Instrumentation and Measurement Technology Conf., Sorrento, Italy, Vol. -, pp. 1639 - 1642, April, 2006 | BibTex
  • F. Alegria, A. Serra, Uncertainty of the Estimates of Sine Wave Fitting of Digital Data in the Presence of Additive Noise, IEEE Instrumentation and Measurement Technology Conf., Sorrento, Italy, Vol. -, pp. 1643 - 1647, April, 2006 | BibTex
  • F. Alegria, A. Serra, Precision of ADC Gain and Offset Error Estimation with the Standard Histogram Test, IEEE Instrumentation and Measurement Technology Conf., Ottawa, Canada, Vol. 1, pp. 282 - 286, May, 2005 | BibTex
  • F. Alegria, A. Serra, Use of Overdrive in the Histogram Test of ADCs, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. 6 - 8, April, 2005 | BibTex
  • F. Alegria, P. M. Ramos, A. Serra, Measuring Channel Switching Error in Data Acquisition Systems, Euro Workshop on ADC Modelling and Testing, Perugia, Italy, Vol., pp. 175 - 177, September, 2003 | BibTex
  • F. Alegria, A. Serra, Coherent Sampling of Sinewaves, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol., pp. 131 - 134, June, 2003 | BibTex
  • F. Alegria, P.M. Girão, V. Haasz, A. Serra, Performance of Data Acquisition Systems from User’s Point of View, IEEE Instrumentation and Measurement Technology Conf., Vail, United States, Vol., pp. 1 - 4, May, 2003 | BibTex
  • F. Alegria, A. Serra, Uncertainty in the ADC Transition Voltages Determined with the Histogram Method, Euro Workshop on ADC Modelling and Testing, Lisbon, Portugal, Vol., pp. 28 - 32, September, 2001 | BibTex
  • F. Alegria, A. Serra, Variance of the Cumulative Histogram of ADCs due to Frequency Errors, IEEE Instrumentation and Measurement Technology Conf., Budapest, Hungary, Vol., pp. 2021 - 2026, May, 2001 | BibTex
  • F. Alegria, A. Serra, ADC Histogram Test by Triangular Small-Waves, IEEE Instrumentation and Measurement Technology Conf., Budapest, Hungary, Vol., pp. 1690 - 1695, May, 2001 | BibTex
  • F. Alegria, A. Serra, Study of the Variance in the Histogram test of ADCs, Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol., pp. 141 - 145, April, 2001 | BibTex
  • H. Ramos, F. Alegria, Caracterização de Conversores Analógico Digitais com Sinais FM, Brazilian Congress of Metrology, São Paulo, Brazil, Vol. 1, pp. 189 - 197, December, 2000 | BibTex
  • F. Alegria, A. Serra, ADC Histogram Test Using Small-Amplitude Input Waves, Prague, Austria, Vol. X, pp. 9 - 14, September, 2000 | BibTex
  • F. Alegria, A. Serra, Influence of Frequency Errors in the Variance of the Cumulative Histogram, Conf. on Precision Electromagnetic Measurements, Sydney, Australia, Vol., pp. 585 - 586, May, 2000 | BibTex
  • F. Alegria, H. Ramos, Characterization of ADCs Using a FM Signal, Conf. on Precision Electromagnetic Measurements, Sydney, Australia, Vol., pp. 583 - 584, May, 2000 | BibTex
  • F. Alegria, A. Serra, Automatic Calibration System for Analog Measurement Instruments, Tampere, Finland, Vol. IVA-4, pp. 292 - 297, June, 1997 | BibTex
  • F. Alegria, H. Ramos, A Remote Controlled Automated Measurement System, IEEE Instrumentation and Measurement Technology Conf., Ottawa, Canada, Vol. 2, pp. 1186 - 1189, May, 1997 | BibTex
  • F. Alegria, A. Serra, Multifunction I/O Boards for the IBM PC AT, Budapest, Hungary, Vol., pp. 302 - 305, September, 1996 | BibTex
2Patents
  • P.M. Girão, F. Alegria, Sistema de identificação automática de matrículas de veículos a partir de imagens vídeo, PT103680, National, Granted, 09-03-2007, Portugal
  • P.M. Girão, F. Alegria, J. C. C. V. Vieira, B. L. Lu, Sistema automático de detecção e identificação da intrusão de veículos em faixas ou sentidos de circulação interditados ao trânsito, PT103501, National, Granted, 14-06-2006, Portugal

Currently running projects2

Acronym Name Funding Agency Start date Ending date
ComSense Inovação em Sensores e Comunicações para a Sociedade Portugal 2030 01-10-2024 01-09-2027
RollerPredict RollerPredict – New Paradigm for Tube Bending FEDER, COMPETE, POR Lisboa 01-10-2024 30-09-2027

Closed Projects11

Acronym Name Funding Agency Start date Ending date
ADCPN Influence of Phase Noise and Jitter in the testing of telecommunication ADCs. IT/LA 01-07-2005 31-12-2007
CLASSE Detection, Classification and Estimation of Defects in Metallic Plates Subject to Manual Inspection IT/LA 01-12-2008 01-12-2010
CRACK Flaw Imaging in Metals by Contactless Conductivity FCT/PTDC 01-10-2007 01-04-2011
EUPAS EUropean Project for ADC-based devices Standardization IT/LA 01-01-1998 01-01-2008
HYPOVEG Experimental Characterization of Instream-Hyporheic Fluxes in Vegetated Channels and Wetlands 01-03-2012 01-03-2015
InADC InADC-In depth analysis of analog to digital converter methods FCT/PTDC 01-09-2007 01-09-2010
LUSO Acção Luso Espanhola - Sismógrafos do Fundo Marinho. Optimização das Técnicas de Desenho dos Instrumentos de Medida: Aquisição, Registo e Tratamento de Dados CRUP
NECTDiMe New error correction techniques for digital measurement instruments FCT/POCTI 01-02-2004 01-02-2007
NMMADC New measurements methods in Analog to Digital Converters testing FCT/POCTI 01-10-2000 30-09-2003
TIM Magnetic Induction Tomography - Development of the instrumentation and measuring methods for biomedical applications. FCT/POSC 01-06-2005 01-06-2008
UDPT Uncertainty in the Discrete Fourier Transform FCT 01-07-2023 31-12-2023
1Editorial Committees
  • Layout Editor, Acta IMEKO, 01-01-2012 - today
4Refereeing Journals
  • Applied Sciences
    2024, 1 review(s);
  • Machines
    2024, 1 review(s);
  • IEEE Transactions on Instrumentation and Measurement
    2007, 1 review(s);
  • Measurement
    2007, 1 review(s);
1Refereeing Conferences
  • IEEE AFRICON Conf. in Africa
    2007, 1 review(s);

Activities from this researcher fall under the following United Nations Strategic Development Goals (SDGs):

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