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Electrónica Geral, Instituto Superior Técnico, Licenciatura em Engenharia de Redes de Comunicação e de Informação
Supervision of theses
PhD Student
- Development And Testing Of Algorithms For Power Quality Event Detection, Classification And Measurement, PhD Student, Václav Matz, 7-2006
- Implementation of sine-fitting techniques for impedance measurements using DSP, PhD Student, Tomáš Radil, ERASMUS, 7-2004
PhD
- Development and Implementation of an Impedance Measuring System Applied to Viscosity Sensors, PhD, José Carlos Sequeira Martins dos Santos, 2-2014, Instituto Superior Técnico
- Non-Destructive Testing Based on Eddy Currents, PhD, Luís Filipe Soldado Granadeiro Rosado, 11-2013, Instituto Superior Técnico
- Impedance Measurements using Analog to Digital Converters and Signal Processing Algorithms, PhD, Mouhaydine Tlemçani, 10-2007, Universidade de Évora
MSc
- Real time power quality monitoring system for 3-phase power grid, MSc, Inês Sousa, 2-2011, Instituto Superior Técnico
- Development of a hardware platform for PLC communications in the CENELEC A band , MSc, Filipe Daniel Bastos da Silva Macedo, 12-2010, Instituto Superior Técnico
- Electrical power meter and power quality analyzer, MSc, Pedro Xavier, 12-2010, Instituto Superior Técnico
- Impedance measurement system based on dsPIC ou DSP for viscosity sensor, MSc, Nuno Santos, 12-2010, Instituto Superior Técnico
- Labview based impedance measurement system, MSc, Helena Rosa, 12-2010, Instituto Superior Técnico
- Modelling Implementation of adaptive communication protocol for PLC communications in the CENELEC A band , MSc, João Pedro Pinto Rosa Dias, 12-2010, Instituto Superior Técnico
- Motor diagnosis electronic system based on signature analysis of vibration and current, MSc, Frederico Carvalho, 12-2010, Instituto Superior Técnico
- Smart Electricity Meter, MSc, Grisha Tulcidas, 12-2010, Instituto Superior Técnico
- Smart Power Metering Device, MSc, Pedro Agulha, 12-2010, Instituto Superior Técnico
- Development of a analog acquisition module for digital protection of motors and generators , MSc, Luis Filipe de Almeida Mendes, 11-2009, Instituto Superior Técnico
- Impedance Measurement System Based on dsPIC, MSc, Jose Carlos Sequeira Martins dos Santos, 11-2009, Instituto Superior Técnico
- Welding flaw detection , MSc, Luis Filipe Soldado Granadeiro Rosado, 11-2009, Instituto Superior Técnico
- Instrumentation System for the Monitoring of Power Quality, MSc, Rui Miguel dos Santos Tavares, 12-2008, Instituto Superior Técnico
- Satellite attitude determination with an optical position sensing detector, MSc, Pedro Rodrigues, 2-2008, Instituto Superior Técnico
- Sistema de Medida com Controlo de Temperatura para Caracterização e Ensaio de Sensores Electroquímicos, MSc, Francisco Assunção , 4-2004
Licenciatura
- Development of a electromagnetic suspension using permanent magnets , Licenciatura, Rui Alberto, Miguel Graça, 12-2006
- Flexible system for electrical power consumption monitoring with GSM , Licenciatura, João Dias, João Lourenço, 12-2005
- Simulation of driver functions in the Metropolitano de Lisboa subway, Licenciatura, João Ferreira, Ricardo Santos, 12-2005
- Testing system for the I/O modules of Metropolitano de Lisboa subway, Licenciatura, Gaudêncio Lopes Fernandes, José Luís Costa Neves , 12-2005
- Design and characterization of a sun sensor for the SSETI-ESEO project, Licenciatura, Pedro Miguel Mouta Rodrigues, 11-2005
- Testing the control unit for the door in the subway trains of ''Metropolitano de Lisboa'', Licenciatura, André Figueira, Luis Branco, 11-2004
- Control Software for Anechoic Chamber Antenna Measurements, Licenciatura, João Cunha, Andreea Fernandes , 12-2003
- Automatic measurement system based on data acquisition board for PC, Licenciatura, José Cohen Abolnik , 12-2003
- Test software for the driver display of the ''Metropolitano de Lisboa'' subway and its subsystems, Licenciatura, Sérgio Carreira, Francisco Freitas, 10-2003
Co - Supervision of Theses
MSc
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Sensor de condutividade com transmissão sem fios, MSc, Sérgio Manuel Cordeiro Ramalho, 10-2009
Research Grant
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Medida da Conductividade da Água , Research Grant, José Gouveia, 4-2007
Publications
Book Chapters
- Ramos, P.M.; SR Rapuano; Martins, RCM; Daponte, P.; "Frequency and time-frequency domain analysis tools in measurement" - Chapter in Data Modeling for Metrology and Testing in Measurement Science, Franco Pavese and Alistair B. Forbes, Birkhäuser, Boston,
2009.
Papers in Journals
- Radil, T.; Ramos, P.M.; "Frequency domain parameter estimation of two common frequency single-tone signals", Measurement, Vol. 43, No. 9, pp. 1228 - 1239, November, 2010.
Abstract
- Rosado, L. S.; T. S. Santos; M. S. Piedade; Ramos, P.M.; P. Vilaça; "Advanced Technique for Non-Destructive Testing of Friction Stir Welding of Metals", Measurement, Vol. 43, No. 8, pp. 1021 - 1030, October, 2010.
Abstract
- Ramos, P.M.; Janeiro, F. M.; Radil, T.; "Comparative analysis of three algorithms for two-channel common frequency sinewave parameter estimation: ellipse fit, seven parameter sine fit and spectral sinc fit", Metrology and Measurement Systems, Vol. XVII, No. 2, pp. 255 - 270, June, 2010.
- Janeiro, F. M.; Ramos, P.M.; F. Wagner; A. M. Silva; "Developments of low-cost procedure to estimate cloud base height based on a digital camera", Measurement, Vol. 43, No. 5, pp. 684 - 689, June, 2010.
Abstract
- Janeiro, F. M.; Ramos, P.M.; "Application of Genetic Algorithms in Sinewave Fitting", Trans. on Systems, Signals and Devices, Vol. 4, No. 4, pp. 563 - 574, December, 2009.
Abstract
- Ramos, P.M.; Serra, A.C.; "Comparison of frequency estimation algorithms for power quality assessment", Measurement, Vol. 42, No. 9, pp. 1312 - 1317, November, 2009.
- Ramos, P.M.; Janeiro, F. M.; Radil, T.; "Comparison of Impedance Measurements in a DSP using Ellipse-fit and Seven-Parameter Sine-fit Algorithms", Measurement, Vol. 42, No. 9, pp. 1370 - 1379, November, 2009.
- Radil, T.; Ramos, P.M.; Serra, A.C.; "New Spectrum Leakage Correction Algorithm for Frequency Estimation of Power System Signals", IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 5, pp. 1670 - 1679, May, 2009.
Abstract
- Ramos, P.M.; Janeiro, F. M.; M. Tlemçani ; Serra, A.C.; "Recent developments on impedance measurements with DSP based ellipse fitting algorithms", IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 5, pp. 1680 - 1689, May, 2009.
- Janeiro, F. M.; Ramos, P.M.; "Impedance Measurements Using Genetic Algorithms and Multiharmonic Signals", IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 2, pp. 383 - 388, February, 2009.
Abstract
- Ramos, P.M.; Radil, T.; Serra, A.C.; "Four-Parameter Sine-Fitting Algorithm for Detection and Classification of Transients and Waveform Distortions", Metrology and Measurement Systems, Vol. XV, No. 4, pp. 441 - 456, December, 2008.
- Radil, T.; Janeiro, F. M.; Ramos, P.M.; Serra, A.C.; "An efficient approach to detect and classify power quality disturbances", COMPEL-The Intrnl. Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 27, No. 5, pp. 1178 - 1191, September, 2008.
Abstract
- Radil, T.; Ramos, P.M.; Janeiro, F. M.; Serra, A.C.; "PQ Monitoring System for Real-Time Detection and Classification of Disturbances in a Single-Phase Power System", IEEE Transactions on Instrumentation and Measurement, Vol. 57, No. 8, pp. 1725 - 1733, August, 2008.
Abstract
- Ramos, P.M.; Serra, A.C.; "Impedance measurement using multiharmonic least-squares waveform fitting algorithm", Computer Standards and Interfaces, Vol. 30, No. 5, pp. 323 - 328, July, 2008.
- Brás, N.B.; Ramos, P.M.; Serra, A.C.; "Extensible Mark-up Language file definition for structured acquisition data storage and transfer", Measurement, Vol. 41, No. 3, pp. 320 - 326, April, 2008.
- Ramos, P.M.; Dias Pereira, J. M.; Ramos, H. G.; Ribeiro, A. L.; "A four terminal water quality monitoring conductivity sensor", IEEE Transactions on Instrumentation and Measurement, Vol. 57, No. 3, pp. 577 - 583, March, 2008.
- Ramos, P.M.; Serra, A.C.; "A new sine-fitting algorithm for accurate amplitude and phase measurements in two channel acquisition systems", Measurement, Vol. 41, No. 2, pp. 135 - 143, February, 2008.
- Radil, T.; Ramos, P.M.; Serra, A.C.; "Impedance Measurement With Sine-Fitting Algorithms Implemented in a DSP Portable Device", IEEE Transactions on Instrumentation and Measurement, Vol. 57, No. 1, pp. 197 - 204, January, 2008.
- Radil, T.; Ramos, P.M.; Janeiro, F. M.; Serra, A.C.; "DSP Based Power Quality Analyzer for Detection and Classification of Disturbances in a Single-phase Power System", Metrology and Measurement Systems, Vol. XIV, No. 4, pp. 483 - 494, December, 2007.
- Ramos, P.M.; Serra, A.C.; "Multiharmonic signal and waveform fitting algorithm for impedance measurements", Trans. on Systems, Signals and Devices, Vol. 2, No. 4, pp. 391 - 407, September, 2007.
- Ramos, P.M.; Serra, A.C.; "Least Squares Multiharmonic Fitting: Convergence Improvements", IEEE Transactions on Instrumentation and Measurement, Vol. 56, No. 4, pp. 1412 - 1418, August, 2006.
- Ramos, P.M.; M. F. Silva; Martins, RCM; Serra, A.C.; "Simulation and Experimental Results of Multiharmonic Least-Squares Fitting Algorithms Applied to Periodic Signals", IEEE Transactions on Instrumentation and Measurement, Vol. 55, No. 2, pp. 646 - 651, April, 2006.
- Serra, A.C.; M. F. Silva; Ramos, P.M.; Martins, RCM; L. Michaeli; J. Saliga; "Combined spectral and histogram analysis for fast ADC testing", IEEE Transactions on Instrumentation and Measurement, Vol. 54, No. 4, pp. 1617 - 1623, August, 2005.
- M. F. Silva; Ramos, P.M.; Serra, A.C.; "A new four parameter sine fitting technique", Measurement, Vol. 35, No. 2, pp. 131 - 137, March, 2004.
- Ramos, P.M.; M. F. Silva; Serra, A.C.; "Low frequency impedance measurement using sine-fitting", Measurement, Vol. 35, No. 1, pp. 89 - 96, January, 2004.
- Costa, J.R.; Ramos, P.M.; Paiva, C. R.; Barbosa, A.; "Numerical study of passive gain equalization with twin-core fiber coupler amplifiers for WDM systems", IEEE Journal of Quantum Electronics, Vol. 37, No. 12, pp. 1553 - 1561, December, 2001. Abstract | Full text (PDF 198KB)
- Ramos, P.M.; Paiva, C. R.; "Self-routing switching of solitonlike pulses in multiple-core nonlinear fiber arrays", JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS , Vol. 17, No. 7, pp. 1125 - 1133, July, 2000.
- Ramos, P.M.; Paiva, C. R.; "All-optical pulse switching in twin-core fiber couplers with intermodal dispersion", IEEE Journal of Quantum Electronics, Vol. 35, No. 6, pp. 983 - 989, June, 1999.
- Janeiro, F. M.; Ramos, P.M.; Paiva, C. R.; "Hamiltonian Formulation for Dispersion-Managed WDM Soliton Communication Systems", Microwave and Optical Tech. Letters, Vol. 21, No. 1, pp. 72 - 77, April, 1999.
- Ramos, P.M.; Paiva, C. R.; "Optimization and characterization of phase-controlled all-optical switching with fiber solitons", IEEE Journal of Selected Topics in Quantum Electronics, Vol. 3, No. 5, pp. 1224 - 1231, October, 1997.
- Ramos, P.M.; Paiva, C. R.; "Influence of cross-phase modulation on self-routing pulse switching in nonlinear optical fibers", Microwave and Optical Tech. Letters, Vol. 15, No. 2, pp. 91 - 95, June, 1997.
Papers in Conference Proceedings
- Santos, J.; Ramos, P.M.; "Impedance Measuring System based on a dsPIC", Proc IMEKO TC4 Symp., Kosice, Slovakia, Vol. 1, pp. 1 - 1, September, 2010.
- Ramos, P.M.; Radil, T.; Janeiro, F. M.; "Sine-fitting algorithms implemented in 32-bit floating point systems", Proc IMEKO TC4 Symp., Kosice, Slovakia, Vol. 1, pp. 1 - 1, September, 2010.
- T. S. Santos; P. Vilaça; Rosado, L. S.; M. S. Piedade; Ramos, P.M.; "Developments in NDT of Friction Stir Welding Using Eddy Currents", Proc European Conf. on Non-Destructive Testing, Moscow, Russia, Vol. 2, pp. 88 - 89, June, 2010.
Abstract
- C. Costa; M. H. M. Matias; Ramos, P.M.; Girão, P.M.; "A New Approach for Real Time Fault Diagnosis in Induction Motors based on Vibration Measurement", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Austin, United States, Vol. 1, pp. 1164 - 1168, May, 2010.
- Rosado, L. S.; M. S. Piedade; Ramos, P.M.; "A Reconfigurable Digital Signal Processing System for Eddy Currents Non-Destructive Testing", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Austin, United States, Vol. 1, pp. 1 - 6, May, 2010.
Abstract
- Janeiro, F. M.; Ramos, P.M.; M. N. A. Fareleira; C. F. Diogo; R. C. Máximo; J. P. Caetano; "Impedance Spectroscopy of a Vibrating Wire for Viscosity Measurements", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Austin, United States, Vol. 1, pp. 1067 - 1072, May, 2010.
Abstract
- Z. A. Awan; Ramos, P.M.; "Improvement of Phase Difference Estimation Using Modified Ellipse Fit Method", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Austin, United States, Vol. 1, pp. 78 - 81, May, 2010.
- Radil, T.; Ramos, P.M.; "Power Quality Detection and Classification Method for IEC 61000-4-30 Class A Instruments", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Austin, United States, Vol. 1, pp. 691 - 696, May, 2010.
Abstract
- C. Costa; Ramos, P.M.; Girão, P.M.; "Instrumento de Análise e Diagnóstico em Máquinas Rotativas de Indução", Proc VI Jornadas sobre Sistemas Reconfiguráveis - REC2010, Aveiro, Portugal, Vol. 1, pp. 0 - 1, February, 2010.
- S. Ramalho; Ribeiro, A. L.; Ramos, H. G.; Ramos, P.M.; "Conductivity Cell for Water Quality Monitoring", Proc International Workshop on Marine Technology - Martech, Vilanova i la Geltrú, Southern Ocean, Vol. CD ROM, pp. 0 - 0, November, 2009.
Abstract
- Janeiro, F. M.; F. Wagner; Ramos, P.M.; A. M. Silva; "CLOUD BASE HEIGHT ESTIMATION USING A LOW-COST DIGITAL CAMERA", Proc IMEKO World Congress, Lisbon, Portugal, Vol. 1, pp. 2270 - 2273, September, 2009.
- Rosado, L. S.; M. S. Piedade; Ramos, P.M.; "New Non-Destructive Test Technique on Metal Inspection", Proc IMEKO World Congress, Lisboa, Portugal, Vol. Portugal, pp. 443 - 448, September, 2009.
Abstract
- Ramos, P.M.; Janeiro, F. M.; Radil, T.; "Performance comparison of three algorithms for two-channel sinewave parameter estimation: seven parameter sine fit, ellipse fit, spectral sinc fit", Proc IMEKO World Congress, Lisbon, Portugal, Vol. 1, pp. 480 - 484, September, 2009.
- Radil, T.; Ramos, P.M.; Serra, A.C.; "Single-phase power quality analyzer based on a new detection and classification algorithm", Proc IMEKO World Congress, Lisbon, Portugal, Vol. CD-ROM, pp. 917 - 922, September, 2009.
Abstract
- Janeiro, F. M.; Ramos, P.M.; "Application of Genetic Algorithms for Estimation of Impedance Parameters of Two-Terminal Networks", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Singapore, Singapore, Vol. CD-ROM, pp. 602 - 606, May, 2009.
Abstract
- Ramos, P.M.; Radil, T.; Janeiro, F. M.; Serra, A.C.; "Development and Implementation of Algorithms for Power Quality Measurements", Proc Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. 1, pp. 117 - 120, May, 2009.
- Radil, T.; Ramos, P.M.; "Frequency Domain Based Algorithm for Estimation of Single-Tone Multichannel Signals", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Singapore, Singapore, Vol. CD-ROM, pp. 973 - 977, May, 2009.
Abstract
- Radil, T.; Ramos, P.M.; Serra, A.C.; "Improved Method for Detection and Classification of Transients and Waveform Distortions Using Sine Fitting Algorithms", Proc International Conf. on Renewable Energies and Power Quality - ICREPQ, Valencia, Spain, Vol. CD-ROM, pp. 485.1 - 485.5, April, 2009.
Abstract
- Ramos, P.M.; Radil, T.; Serra, A.C.; "Detection and classification of transients and waveform distortions using an algorithm based on sine-fitting", Proc IMEKO TC4 Symp., Florence, Italy, Vol. 1, pp. 323 - 328, September, 2008.
- Radil, T.; Ramos, P.M.; Serra, A.C.; "Detection and Extraction of Harmonic and Non-harmonic Power Quality Disturbances Using Sine Fitting Methods", Proc International Conf. on Harmonics and Quality of Power - ICHQP, Wollongong, Australia, Vol. CD-ROM, pp. 1 - 6, September, 2008.
Abstract
- Ramos, P.M.; "Non destructive testing of friction stir welding: Comparison of planar eddy current probes", Proc IMEKO TC4 Symp., Florence, Italy, Vol. 1, pp. 507 - 512, September, 2008.
- Radil, T.; Ramos, P.M.; Serra, A.C.; "Frequency Estimation of Power System Signals Using a New Spectrum Leakage Correction Algorithm", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Victoria, Canada, Vol. CD-ROM, pp. 2161 - 2166, May, 2008.
Abstract
- Janeiro, F. M.; J. F. Martins; V. F. Pires; Ramos, P.M.; A. J. Pires; "Induction Motor Broken Bars Online Detection", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Victoria, Canada, Vol. 1, pp. 2137 - 2140, May, 2008.
- Ramos, P.M.; Janeiro, F. M.; M. Tlemçani ; Serra, A.C.; "Uncertainty analysis of impedance measurements using DSP implemented ellipse fitting algorithms", Proc IEEE International Instrumentation and Technology Conf. - I2MTC, Victoria, Canada, Vol. 1, pp. 463 - 467, May, 2008.
- Ramos, P.M.; Janeiro, F. M.; "Implementation Of DSP based algorithms for impedance measurements", Proc IEEE International Conf. on Signal Processing and Communication - ICSPC, Dubai, United Arab Emirates, Vol. 1, pp. 816 - 819, November, 2007.
- Janeiro, F. M.; F. Wagner; Ramos, P.M.; A. M. Silva; "Automated Atmospheric Visibibility Measurements using a Digital Camera and Image Registration", Proc IMEKO TC19 Symp, Iasi, Romania, Vol. 1, pp. 13 - 17, September, 2007.
- Ramos, P.M.; Radil, T.; Janeiro, F. M.; Serra, A.C.; "DSP based power quality analyzer using new signal processing algorithms for detection and classification of disturbances in a single-phase power system", Proc IMEKO TC4 Symp., Iasi, Romania, Vol. II, pp. 433 - 438, September, 2007.
- Ramos, P.M.; Janeiro, F. M.; M. Tlemçani ; Serra, A.C.; "Implementation of a DSP based impedance measurement instrument using ellipse fitting algorithms", Proc IMEKO TC4 Symp., Iasi, Romania, Vol. II, pp. 492 - 497, September, 2007.
- Janeiro, F. M.; Ramos, P.M.; "Application of Genetic Algorithms in Parameter Estimation of Periodic Signals", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 217 - 220, May, 2007.
- Janeiro, F. M.; F. Wagner; Ramos, P.M.; A. M. Silva; "Atmospheric Visibility Measurements Based on a Low-Cost Digital Camera", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 213 - 216, May, 2007.
- V. Matz; Radil, T.; Ramos, P.M.; Serra, A.C.; "Automated Power Quality Monitoring System for On-line Detection and Classification of Disturbances", Proc IEEE Instrumentation and Measurement Technology Conf., Warsaw, Poland, Vol. CD-ROM, pp. 7083.1 - 7083.6, May, 2007.
- Ramos, P.M.; Ramos, H. G.; Ribeiro, A. L.; "Design, Implementation and Characterization of Stand-Alone Prototypes for Water Conductivity Assessment", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 225 - 228, May, 2007.
- Radil, T.; V. Matz; Ramos, P.M.; Janeiro, F. M.; Serra, A.C.; "Development of a real-time Power quality monitoring Instrument for Detection and Classification of Disturbances in a Single-phase Power System", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 267 - 270, May, 2007.
- Janeiro, F. M.; Ramos, P.M.; "Multiharmonic Waveform Fitting of Periodic Signals using Genetic Algorithms", Proc IEEE Instrumentation and Measurement Technology Conf., Warsaw, Poland, Vol. CD-ROM, pp. 1 - 6, May, 2007.
- Radil, T.; V. Matz; Janeiro, F. M.; Ramos, P.M.; Serra, A.C.; "On-line Detection and Classification of Power Quality Disturbances in a Single-phase Power System", Proc International Conf. on Power Engineering, Energy and Electrical Drives - POWERENG, Setúbal, Portugal, Vol. CD-ROM, pp. 713 - 718, April, 2007.
- Radil, T.; Janeiro, F. M.; Ramos, P.M.; "Development of a Single-Phase DSP based Power Quality Analyzer using New Signal Processing Algorithms for Detection and Classification", Proc International Conf. on Renewable Energies and Power Quality - ICREPQ, Sevilla, Spain, Vol. CD-ROM, pp. 367.1 - 367.6, March, 2007.
- Janeiro, F. M.; Ramos, P.M.; "Estimation of Sinewave Parameters using Genetic Algorithms", Proc IEEE International Conf. on Signals, Systems, Devices - SSD, Hammamet, Tunisia, Vol. IV, SCI-4028, pp. 1 - 4, March, 2007.
- Radil, T.; Janeiro, F. M.; Ramos, P.M.; Serra, A.C.; "Power Quality Monitoring in a Single-phase Power System", Proc IEEE International Conf. on Signals, Systems, Devices - SSD, Hammamet, Tunisia, Vol. CD-ROM, pp. 1 - 4, March, 2007.
- V. Matz; Radil, T.; Ramos, P.M.; "Multifunction Power Quality Monitoring System", Proc Technical Computing Prague, Prague, Czech Republic, Vol. CD-ROM, pp. 67 - 74, October, 2006.
- V. Matz; Ramos, P.M.; Brás, N.B.; Serra, A.C.; "A comparative evaluation between frequency estimation algorithms for power quality assessment in DSP implementation", Proc IMEKO World Congress, Rio de Janeiro, Brazil, Vol. , pp. - - -, September, 2006.
- Janeiro, F. M.; Ramos, P.M.; M. Tlemçani ; Serra, A.C.; "Analysis of a Non-Iterative Algorithm for the Amplitude and Phase Difference Estimation of two Acquired Sinewaves", Proc IMEKO World Congress, Rio de Janeiro, Brazil, Vol. , pp. - - -, September, 2006.
- P. Rodrigues; Ramos, P.M.; "Design and characterization of a sun sensor for the SSETI-ESEO project", Proc IMEKO World Congress, Rio de Janeiro, Brazil, Vol. , pp. - - -, September, 2006.
- M. Komárek; M. Novotny; Ramos, P.M.; Dias Pereira, J. M.; "A DSP Based Prototype for Water Conductivity Measurements", Proc IEEE Instrumentation and Measurement Technology Conf., Sorrento, Italy, Vol. , pp. 2348 - 2353, April, 2006.
- Ramos, P.M.; Brás, N.B.; Serra, A.C.; "A new calibration method for current and voltage sensors used in power quality measurements", Proc IEEE Instrumentation and Measurement Technology Conf., Sorrento, Italy, Vol. 1, pp. 2283 - 2288, April, 2006.
- Ramos, P.M.; Serra, A.C.; "Convergence of Least-Squares Multi Harmonic Fitting Algorithm", Proc IEEE Instrumentation and Measurement Technology Conf., Sorrento, Italy, Vol. 1, pp. 1982 - 1987, April, 2006.
- Brás, N.B.; Ramos, P.M.; Serra, A.C.; "Flexible PC measurement system based in Extensible Mark-up Language files", Proc IMEKO TC4 Symp., Gdynia, Poland, Vol. 2, pp. 404 - 407, September, 2005.
- Radil, T.; Ramos, P.M.; Serra, A.C.; "DSP based portable impedance measurement instrument using sine-fitting algorithms", Proc IEEE Instrumentation and Measurement Technology Conf., Ottawa, Canada, Vol. 2, pp. 1018 - 1022, May, 2005.
- Ramos, P.M.; M. F. Silva; Serra, A.C.; "Applying sine-fitting algorithms beyond the Nyquist limit", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005.
- Ramos, P.M.; Radil, T.; Serra, A.C.; "Implementation of sine-fitting algorithms in a DSP based portable instrument for impedance measurement", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005.
- Ramos, P.M.; Serra, A.C.; "Tailored Multi-Harmonic Signals for Impedance Measurements with Waveform Fitting Algorithms", Proc IEEE International Conf. on Signals, Systems, Devices - SSD, Sousse, Tunisia, Vol. 4, pp. 1 - 5, March, 2005.
- Ramos, H. G.; Assunção, F.A.; Ribeiro, A. L.; Ramos, P.M.; "A Low-Cost Temperature Controlled System to Test and Characterize Sensors", Proc IEEE AFRICON Conf. in Africa, Gaborone, Botswana, Vol. 01, pp. 457 - 460, September, 2004.
- Ramos, P.M.; M. F. Silva; Serra, A.C.; "Impedance Measurement using a Least-Squares Waveform Fitting Algorithm", Proc Conf. on Precision Electromagnetic Measurements, London, United Kingdom, Vol. 1, pp. 125 - 126, June, 2004.
- M. F. Silva; Ramos, P.M.; Martins, RCM; Serra, A.C.; "Least-Square Fitting Algorithms Applied To Periodic Signals", Proc IEEE Instrumentation and Measurement Technology Conf., Como, Italy, Vol. 3, pp. 1730 - 1734, May, 2004.
- Ramos, P.M.; Assunção, F.A.; Ramos, H. G.; "Automated temperature controlled bath to characterize sensors for in-situ water quality monitoring", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2004.
- Alegria, ; Ramos, P.M.; Serra, A.C.; "Measuring Channel Switching Error in Data Acquisition Systems", Proc Euro Workshop on ADC Modelling and Testing, Perugia, Italy, Vol. , pp. 175 - 177, September, 2003.
- M. F. Silva; Serra, A.C.; Ramos, P.M.; "Improving Convergence of Sine Fitting Algorithms", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 119 - 122, June, 2003.
- Ramos, P.M.; M. F. Silva; Serra, A.C.; "Improving sine-fitting algorithms for amplitude and phase measurements", Proc IMEKO World Congress, Dubrovnik, Croatia, Vol. TC4, pp. 614 - 619, June, 2003.
- M. F. Silva; Ramos, P.M.; Serra, A.C.; "Impedance measurement using sine fitting algorithms", Proc IMEKO TC4 Symp., Zagreb, Croatia, Vol. 1, pp. 199 - 204, September, 2002.
- Ramos, P.M.; Paiva, C. R.; "All-optical logical gates with solitonlike pulses in mismatched two-core fiber couplers", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 497 - 501, April, 2001.
- Costa, J.R.; Ramos, P.M.; Paiva, C. R.; Barbosa, A.; "Amplification of Wavelength Division Multiplexing in Multi-Core Erbium Doped Fiber Amplifiers", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 479 - 483, April, 2001. Abstract | Full text (PDF 296KB)
- Ramos, P.M.; Costa, J.R.; Paiva, C. R.; "Pulse switching in nonlinear fiber Bragg gratings", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 488 - 492, April, 2001.
- Ramos, P.M.; Costa, J.R.; Paiva, C. R.; "A numerical study of pulse switching in nonlinear nonuniform fiber Bragg gratings", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, Puerto Rico, Puerto Rico, Vol. 1, pp. 661 - 662, November, 2000. Abstract | Full text (PDF 134KB)
- Costa, J.R.; Ramos, P.M.; Paiva, C. R.; Barbosa, A.; "A Numerical Study of WDM Pulse Equalization in Twin-Core Fiber Amplifiers", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, Puerto Rico, Puerto Rico, Vol. 1, pp. 275 - 276, November, 2000. Abstract | Full text (PDF 175KB)
- Ramos, P.M.; Paiva, C. R.; "Analysis of solitonlike pulse switching in mismatched two-core fiber couplers", Proc Progress in Electromagnetics Research Symp. - PIERS, Boston, United States, Vol. 1, pp. 49 - 49, July, 2000.
- Costa, J.R.; Ramos, P.M.; Paiva, C. R.; Barbosa, A.; "Wavelength Division Multiplexing With Solitons in Erbium-Dped Fiber Couplers", Proc Progress in Electromagnetics Research Symp. - PIERS, Boston, United States, Vol. 1, pp. 46 - 46, July, 2000.
- Ramos, P.M.; Paiva, C. R.; "Optimization of all-optical soliton switching in N-core fiber arrays", Proc International Symp. on Recent Advances in Microwave Technology, Malaga, Spain, Vol. 1, pp. 53 - 56, December, 1999.
- Ramos, P.M.; Paiva, C. R.; "Comutação de solitões em fibras ópticas não-lineares de múltiplos núcleos", Proc Encontro do Colégio de Electrotecnia da Ordem dos Engenheiros, Lisboa, Portugal, Vol. 1, pp. 141 - 147, May, 1999.
- Ramos, P.M.; Paiva, C. R.; "Effect of intermodal dispersion on soliton switching in twin-core nonlinear fiber couplers", Proc Conf. on Telecommunications - ConfTele, Sesimbra, Portugal, Vol. 1, pp. 172 - 176, April, 1999.
- Ramos, P.M.; Costa, J.R.; Paiva, C. R.; "Erbium-doped nonlinear fiber coupler: Influence of wavelength mismatch on soliton switching", Proc Progress in Electromagnetics Research Symp. - PIERS, Nantes, France, Vol. 1, pp. 210 - 210, July, 1998.
- Ramos, P.M.; Paiva, C. R.; "Optimization of phase-controlled soliton switching in nonlinear optical fibers", Proc IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, San Francisco, United States, Vol. 1, pp. 373 - 374, November, 1997.
- Ramos, P.M.; Paiva, C. R.; "A new variational approach for the cross-phase modulation effect on self-routing pulse switching in nonlinear fiber couplers", Proc Pacific Rim Conf. on Lasers and Electro-Optics, Chiba, Japan, Vol. 1, pp. 113 - 114, July, 1997.
- Ramos, P.M.; Paiva, C. R.; "Comutação fotónica de solitões em acopladores não-lineares de fibras ópticas", Proc Encontro do Colégio de Electrotecnia da Ordem dos Engenheiros, Porto, Portugal, Vol. 1, pp. 390 - 400, June, 1997.
- Ramos, P.M.; Paiva, C. R.; "Soliton switching in twin-core nonlinear fiber couplers: A comparative study between analytical and numerical methods", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 273 - 276, April, 1997.
- Ramos, P.M.; Paiva, C. R.; "Combined effect of cross-phase modulation and higher-order dispersion on soliton switching in nonlinear fiber couplers", Proc Progress in Electromagnetics Research Symp. - PIERS, Hong Kong, United Kingdom, Vol. 2, pp. 506 - 506, January, 1997.
- Project Reports
- Dias Pereira, J. M.; Ramos, H. G.; Ribeiro, A. L.; Ramos, P.M.; "Design, Implementation and Characterization of Stand-Alone Prototypes for Water Conductivity Assessment", Telecommunications Institute (IT), IT/LA/298/2005, May, 2006.
Theses
- P.M. Ramos; "Comutação fotónica não-linear", Instituto Superior Técnico, December, 2001 .
- P.M. Ramos; "Comutação fotónica de solitões em acopladores não-lineares de fibras ópticas", Instituto Superior Técnico, November, 1997 .
Other Scientific Achievements
Awards
- Ramos, P.M.;
"Nonlinear Switching with Solitons in Optical Fibers", 1st Prize Inovação Jovem Engenheiro da Ordem dos Engenheiros, 01-12-1999.
- Ramos, H. G.; Ramos, P.M.; "Training Course", Curso Básico de Instrumentação e Controlo de Dispositivos através de Interfaces Série e Paralelo", Direcção Geral de Jogos, 09-11-2004.
- Ramos, H. G.; Ramos, P.M.;
"
Curso Básico de Instrumentação e Controlo de Dispositivos através de Interfaces Série e Paralelo
",
Portugal
",
Lisboa
",
1-2005
.
Other Contributions
Conference Committees
- Conftele 2005, Organizing Committee, Pedro Ramos, 2005.
- 11th International Symposium on Trends in Electrical Measurements and Instrumentation and the 6th Workshop on ADC Modelling and Testing , Organizing Committee, Pedro Ramos, 2001.
