Creating and sharing knowledge for telecommunications
... Jose Manuel Nunes Leitão

Senior Researcher

José Leitão

Academic position: Full Professor
Joining date: 01-01-1999
Role in IT: Senior Researcher
Scientific Area: Wireless Communications
Group: Communication Theory – 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


Scientific Achievements

  • Agregação, Instituto Superior Técnico, 15-06-1993
  • Instituto Superior Técnico, 01-05-1976,
  • 6Books Chapters
  • M. A. T. Figueiredo , J. Leitão , A. K. Jain , On Fitting Mixture Models , Chapter in , Energy Minimization Methods in Computer Vision and Pattern Recognition , E. Hancock and M. Pellilo , Springer , Berlin 1999
  • A. L. N. Fred , J. Leitão , A Comparative Study of String Dissimilarity Measures in Structural Clustering , Chapter in , International Conference on Advances in Pattern Recognition , Sameer Singh , Springer 1998
  • A. L. N. Fred , J. Leitão , Minimal Sample Size for Grammatical Inference - a Bootstraping Approach , Chapter in , 2nd International Workshop on Statistical Techniques in Pattern Recognition , A. Amin, D. Dori, P. Pudil and H. Freeman , Springer 1998
  • M. A. T. Figueiredo , J. Leitão , A. K. Jain , Adaptive parametrically deformable contours , Chapter in , Energy Minimization Methods in Computer Vision and Pattern Recognition , M. Pellilo and E. Hancock , Springer , Berlin 1997
  • M. A. T. Figueiredo , J. Leitão , Image restoration using a standard Hopfield neural network , Chapter in , Image Processing: Theory and Applications , G. Vernazza, A. Venetsanopoulos, and C. Branccini , Elsevier Science , Amsterdam 1993
  • M. A. T. Figueiredo , J. Leitão , Signal estimation using a standard Hopfield neural network' , Chapter in , Acoustic Signal Processing for Ocean Exploration , J. Moura and I. Lourtie , Kluwer Academic , Dordrecht 1992
  • 18Papers in Journals
  • F. Nunes , J. Leitão , F. Sousa , Nonlinear Filtering in GNSS Pseudorange Dynamics Estimation Combining Code Delay and Carrier Phase , IEEE Journal on Selected Topics in Signal Processing , Vol. 3 , No. 4 , pp. 639 - 650 , August , 2009
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  • F. S. Sena da Silva , J. Leitão , Importance Sampling Evaluation of Digital Phase Detectors with Carrier Phase Tracking. A Large Deviations Approach. , IEEE Trans. on Signal Processing , Vol. 56 , No. 12 , pp. 5976 - 5986 , December , 2008
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  • F. Nunes , F. Sousa , J. Leitão , Gating Functions for Multipath Mitigation in GNSS BOC Signals , IEEE Trans. on Aerospace and Electronic Systems , Vol. 43 , No. 3 , pp. 951 - 964 , July , 2007
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  • A. L. N. Fred , J. Leitão , A New Cluster Isolation Criterion Based on Dissimilarity Increments , IEEE Trans. on Pattern Analysis and Machine Intelligence , Vol. 25 , No. 8 , pp. 944 - 958 , August 2003 | Full text (PDF 6 MBs) | BibTex
  • J. Bioucas-Dias , J. Leitão , E. Fonseca , Reconstruction of Backscattering and extinction coefficients in Lidar: a stochastic filtering approach , IEEE Trans. on Geoscience and Remote Sensing , Vol. 42 , No. 2 , pp. 604 - 624 , February , 2003
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  • J. Bioucas-Dias , J. Leitão , Efficient computation of tr{AB-1} for Toeplitz matrices , IEEE Signal Processing Letters , Vol. 9 , No. 2 , pp. 44 - 46 , May 2002 | BibTex
  • J. Bioucas-Dias , J. Leitão , The ZpiM Algorithm for Interferometric Image Reconstruction in SAR/SAS , IEEE Trans. on Image Processing , Vol. 11 , No. 4 , pp. 408 - 422 , April 2002 | BibTex
  • M. A. T. Figueiredo , J. Leitão , A. K. Jain , Unsupervised contour representation and estimation using B-splines and a minimum description length criterion , IEEE Trans. on Image Processing , Vol. 9 , No. 6 , pp. 1075 - 187 , June 2000 | BibTex
  • J. Bioucas-Dias , J. Leitão , Nonparametric Estimation of Mean Doppler and Spectral Width , IEEE Trans. on Geoscience and Remote Sensing , Vol. 38 , No. 1 , pp. 271 - 282 , January 2000 | BibTex
  • F. Nunes , J. Leitão , Signal Processing Aspects of Fusion Plasma Broadband Reflectometry , IEEE Trans. on Signal Processing , Vol. 47 , No. 2 , pp. 378 - 388 , February 1999 | BibTex
  • F. Nunes , J. Leitão , A Nonlinear Filtering Approach to Estimation and Detection in Mobile Communications , IEEE Journal on Selected Areas in Communications , Vol. 16 , No. 9 , pp. 1649 - 1659 , December 1998 | BibTex
  • M. A. T. Figueiredo , J. Leitão , Absolute phase image reconstruction: a stochastic nonlinear filtering approach , IEEE Trans. on Image Processing , Vol. 7 , No. 7 , pp. 868 - 882 , July 1998 | BibTex
  • M. A. T. Figueiredo , J. Leitão , Unsupervised image restoration and edge location using compound Gauss-Markov random fields and the MDL principle , IEEE Trans. on Image Processing , Vol. 6 , No. 8 , pp. 1089 - 1102 , August 1997 | BibTex
  • J. Bioucas-Dias , J. Leitão , Wall position and thickness estimation from sequences of echocardiograms images , IEEE Trans. on Medical Imaging , Vol. 15 , No. 1 , pp. 25 - 38 , February 1996 | BibTex
  • J. Bioucas-Dias , J. Leitão , Asymptotically efficient estimation of spectral moments , IEEE Trans. on Signal Processing , Vol. 43 , No. 9 , pp. 2222 - 2225 , September 1995 | BibTex
  • M. A. T. Figueiredo , J. Leitão , A nonsmoothing approach to the estimation of vessel contours in angiograms , IEEE Trans. on Medical Imaging , Vol. 14 , No. , pp. 162 - 172 , March 1995 | BibTex
  • M. A. T. Figueiredo , J. Leitão , Sequential and parallel image restoration: Neural network implementations , IEEE Trans. on Image Processing , Vol. 3 , No. , pp. 789 - 802 , November 1994 | BibTex
  • M. A. T. Figueiredo , J. Leitão , Bayesian estimation of ventricular contours in angiographic images , IEEE Trans. on Medical Imaging , Vol. 11 , No. 3 , pp. 416 - 429 , March 1992 | BibTex
  • 59Papers in Conferences
  • F. Nunes , J. Leitão , F. Sousa , Absolute Modulation Scheme for Enhanced GNSS Receiver Performance , European Workshop on GNSS Signals and Signal Processing - EWGSSP , Munich , Germany , Vol. I , pp. 1 - 7 , December , 2013
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  • F. Nunes , F. Sousa , J. Leitão , Performance Analysis of Low-Complexity VDLL Architectures for GNSS Signals , European Navigation Conf. - ENC-GNSS , London , United Kingdom , Vol. 1 , pp. 1 - 13 , November , 2011
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  • M.-J. Rendas , J. Leitão , Rumor-Robust Distributed Data Fusion , IEEE International Conf. on Multisensor Fusion and Integration for Intelligent Systems - MFI2010 , Salt Lake City , United States , Vol. I , pp. 230 - 235 , September , 2010
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  • F. Sousa , F. Nunes , J. Leitão , Correlation Losses and Interference Rejection due to Quantization in CBOC Receivers , Institute of Navigation GPS/GNSS Conf. , Savannah , United States , Vol. 1 , pp. 3234 - 3241 , September , 2009
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  • F. Nunes , F. Sousa , J. Leitão , Performance Analysis of Altimeter-Aided GNSS Receiver for Indoor Scenarios , Conf. on Telecommunications - ConfTele , Santa maria da Feira , Portugal , Vol. 1 , pp. 1 - 4 , May , 2009
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  • F. Nunes , F. Sousa , J. Leitão , Code Tracking Algorithm for GNSS Open-Loop Receivers Using Autocorrelation Interpolation , ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC) , Noordwijk , Netherlands , Vol. 1 , pp. 1 - 8 , December , 2008
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  • F. Sousa , F. Nunes , J. Leitão , Multipath Mitigation Techniques in MBOC GPS/Galileo Signals Using the CCRW Concept , ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC) , Noordwijk , Netherlands , Vol. 1 , pp. 1 - 8 , December , 2008
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  • F. Nunes , F. Sousa , J. Leitão , BOC/MBOC Multicorrelator Receiver with Least-Squares Multipath Mitigation Technique , Institute of Navigation GPS/GNSS Conf. , Savannah , United States , Vol. 1 , pp. 1 - 11 , September , 2008
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  • F. Nunes , F. Sousa , J. Leitão , Least-Squares Minimization Technique for Multipath Mitigation in GNSS Receivers , European Navigation Conf. - ENC-GNSS , Toulouse , France , Vol. 1 , pp. 1 - 11 , April , 2008
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  • F. Sousa , F. Nunes , J. Leitão , Code Correlation Reference Waveforms for Multipath Mitigation in MBOC GNSS Receivers , European Navigation Conf. - ENC-GNSS , Toulouse , France , Vol. 1 , pp. 1 - 10 , April , 2008
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  • F. Nunes , F. Sousa , J. Leitão , Nonlinear Least-Squares Algorithm for Close-in Multipath Mitigation in GNSS Receivers , Institute of Navigation GPS/GNSS Conf. , Fort Worth , United States , Vol. I , pp. 1 - 9 , September 2007 | BibTex
  • F. Nunes , J. Leitão , F. Sousa , Improving Pseudorange Estimation in GNSS Receivers with a Recursive Bayesian Approach , Conf. on Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 1 - 4 , May 2007 | BibTex
  • F. Sousa , F. Nunes , J. Leitão , Asymmetrical Strobe Pulses for Multipath Mitigation in BOC GNSS Receivers , Conf. on Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 1 - 4 , May 2007 | BibTex
  • F. Nunes , F. Sousa , J. Leitão , Parallel Bayesian Code Delay and Doppler frequency Estimation in GNSS Receivers , ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC) , Noordwijk , Netherlands , Vol. 1 , pp. 1 - 8 , December 2006 | BibTex
  • F. Sousa , F. Nunes , J. Leitão , Strobe Correlator Design for Multipath Mitigation in BOC GNSS Receivers , ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC) , Noordwijk , Netherlands , Vol. 1 , pp. 1 - 8 , December 2006 | BibTex
  • F. Nunes , F. Sousa , J. Leitão , Kalman Filtering for Acquisition of GNSS Signals in Highly-Manoeuvrable Receivers , IEEE Position, Location and Navigation Symp. - PLANS , San Diego , United States , Vol. 1 , pp. 1 - 9 , April 2006 | BibTex
  • F. Sousa , F. Nunes , J. Leitão , Strobe Pulse Design for Multipath Mitigation in BOC GNSS Receivers , IEEE Position, Location and Navigation Symp. - PLANS , San Diego , United States , Vol. 1 , pp. 1 - 8 , April 2006 | BibTex
  • F. Sousa , F. Nunes , J. Leitão , Partial Correlation Technique for the Acquisition of Weak GPS/Galileo Signals , Institute of Navigation Annual Meeting , Cambridge-Boston , United States , Vol. 1 , pp. 543 - 552 , June 2005 | BibTex
  • F. Nunes , F. Sousa , J. Leitão , Improving Multipath Mitigation in GPS/Galileo BOC Signals with Gating Functions , Institute of Navigation Annual Meeting , Cambridge-Boston , United States , Vol. 1 , pp. 498 - 507 , June 2005 | BibTex
  • F. Nunes , F. Sousa , J. Silva , J. Leitão , Hybrid Code Delay Estimator for GPS/Galileo BOC Signals Using the Innovations Approach , Conf. on Telecommunications - ConfTele , Tomar , Portugal , Vol. 1 , pp. 1 - 4 , April 2005 | BibTex
  • F. Nunes , F. Sousa , J. Leitão , Multipath Mitigation Technique for BOC Signals Using Gating Functions , ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC) , Noordwijk , Netherlands , Vol. 1 , pp. 1 - 8 , December 2004 | BibTex
  • F. Sousa , F. Nunes , J. Leitão , An Acquisition Algorithm for Weak Signals in Galileo and Modernized GPS Systems , ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC) , Noordwijk , Netherlands , Vol. 1 , pp. 480 - 487 , December 2004 | BibTex
  • F. Nunes , F. Sousa , J. Leitão , Innovations-based Code Discriminator for GPS/Galileo BOC Signals , IEEE Vehicular Networking Conf. (VNC) , Los Angeles , United States , Vol. 1 , pp. 1 - 5 , September 2004 | BibTex
  • F. Nunes , F. Sousa , J. Leitão , An Innovations Approach to False-lock Mitigation for GPS/Galileo BOC Signals , Institute of Navigation GPS/GNSS Conf. , Long Beach, CA , United States , Vol. 1 , pp. 1 - 8 , September 2004 | BibTex
  • F. Nunes , J. Leitão , Innovations-based Channel Estimation and symbol Detection of Multi-level OFDM Signals , IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Comm. , Lisboa , Portugal , Vol. 1 , pp. 1 - 4 , July 2004 | BibTex
  • F. Nunes , J. Leitão , A New Fast Code/Frequency Acquisition Algorithm for GPS C/A Signals , IEEE Vehicular Networking Conf. (VNC) , Orlando , United States , Vol. 1 , pp. 1 - 5 , October 2003 | BibTex
  • F. Nunes , J. Leitão , State-space Estimation of Rapidly-varying Carrier Frequency Offsets in OFDM Systems , IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Comm. , Roma , Italy , Vol. 1 , pp. 370 - 374 , June 2003 | BibTex
  • F. Nunes , J. Leitão , Joint Doppler Frequency and Frequency-Rate Estimation in LEO Satellite Communications , IEEE Global Telecommunications Conf. - GLOBECOM , Taipei , Taiwan , Vol. 1 , pp. 1 - 5 , November 2002 | BibTex
  • F. Nunes , J. Leitão , 16-DAPSK Sequence Detection in Fading Channels with Carrier Frequency Offset Estimation , IEEE International Symp. on Personal, Indoor and Mobile Radio Commun - PIMRC , Lisbon , Portugal , Vol. 5 , pp. 2072 - 2076 , September 2002 | BibTex
  • F. Nunes , J. Leitão , 16-DAPSK Innovations-based Sequence Detection for Satellite Communications with Imperfect Carrier Synchronization , IEEE Vehicular Networking Conf. (VNC) , Vancouver , Canada , Vol. 1 , pp. 1 - 5 , September 2002 | BibTex
  • J. Leitão , Adaptive carrier tracking in mobile communication. An innovations based approach , IEEE Vehicular Networking Conf. (VNC) , Vancouver , Canada , Vol. , pp. 00 - 03 , September 2002 | BibTex
  • F. Sousa , J. Leitão , Adaptive Carrier Tracking in Mobile Communication – An Innovations-Based Approach , IEEE Vehicular Networking Conf. (VNC) , Vancouver , Canada , Vol. 4 , pp. 2273 - 2277 , September 2002 | BibTex
  • F. Sousa , J. Leitão , Sincronização baseada no modelo da dinâmica emissor-receptor em comunicação móvel , Jornadas de Engenharia de Electrónica e Telecomunicações e de Computadores do ISEL , Lisboa , Portugal , Vol. 1 , pp. 1 - 8 , May 2002 | BibTex
  • J. Bioucas-Dias , J. Leitão , A Discrete/Continuous Minimization Method In Interferometric Image Processing , Energy Minimization Methods in Computer Vision and Pattern Recognition , Sophia Antipolis , France , Vol. , pp. 375 - 390 , November 2001 | BibTex
  • F. Nunes , J. Leitão , Doppler Frequency and Frequency-Rate Estimation in Fading Channels. Application to LEO Satellite Communications , ESA DSP , Sesimbra , Portugal , Vol. 1 , pp. 8.4(1) - 8.4(8) , October 2001 | BibTex
  • F. Sousa , J. Leitão , Carrier Tracking and Symbol Timing in Highly Accelerative Mobile Communications , ESA DSP , Lisboa , Portugal , Vol. 1 , pp. 1 - 8 , October 2001 | BibTex
  • J. Bioucas-Dias , J. Leitão , InSAR Phase Unwrapping: A Bayesian Approach , IEEE International Geoscience and Remote Sensing Symp.- IGARSS , Sydney , Australia , Vol. I , pp. 396 - 400 , September 2001 | BibTex
  • F. S. Sena da Silva , J. Leitão , Importance Sampling Analysis of Digital Phase Detectors with Carrier Phase Tracking , IEEE Workshop on Statistical Signal Processing - SSP , Singapore , Singapore , Vol. I , pp. 50 - 53 , August 2001 | BibTex
  • J. Leitão , F. Sousa , Recursive Bayesian Phase Estimation in Ranging and Mobile Communication , IEEE Workshop on Statistical Signal Processing - SSP , Singapore , Singapore , Vol. 1 , pp. 202 - 205 , August 2001 | BibTex
  • F. Nunes , J. Leitão , M-DPSK Detection, Channel Estimation and Power Control in LEO Satellite Communications , IEEE International Conf. on Communications - ICC , Helsinki , Finland , Vol. 4 , pp. 2655 - 2659 , June 2001 | BibTex
  • F. S. Sena da Silva , J. Leitão , Error Floor Assessment of Digital Phase Detectors with Carrier Phase Tracking. A Large Deviations Approach , IEEE International Symp. on Information Theory - ISIT , Washington DC , United States , Vol. I , pp. 137 - 137 , June 2001 | BibTex
  • F. Nunes , J. Leitão , Adaptive Scheme for M-DPSK Signals in LEO Satellite Communications , IEEE Vehicular Networking Conf. (VNC) , Rhodes , Greece , Vol. 4 , pp. 2993 - 2997 , May 2001 | BibTex
  • F. S. Sena da Silva , J. Leitão , Importance Sampling Evaluation of Digital Phase Detectors Based on Extended Kalman-Bucy Filters , IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP , Salt Lake City , United States , Vol. IV , pp. 2537 - 2540 , May 2001 | BibTex
  • F. Sousa , J. Leitão , Mobile Communications based on an Emitter/Receiver Dynamics Model , IEEE Vehicular Networking Conf. (VNC) , Rhodes , Greece , Vol. 1 , pp. 2998 - 3002 , May 2001 | BibTex
  • F. Nunes , J. Leitão , Adaptive M-DPSK Scheme for Fading Channels , Conf. on Telecommunications - ConfTele , Figueira da Foz , Portugal , Vol. 1 , pp. 341 - 345 , April 2001 | BibTex
  • F. Nunes , J. Leitão , M-DPSK Receiver for Doppler-Shift Mobile Communications , IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Comm. , Taoyuan , Taiwan , Vol. 1 , pp. 22 - 25 , March 2001 | BibTex
  • J. Sanguino , S. M. Marques , L. P. Pontes , J. Leitão , Operational Aspects of a DGPS-based Vessel Traffic System , ESA DASIA , Montreal , Canada , Vol. -- , pp. 637 - 641 , May 2000 | BibTex
  • F. Nunes , J. Leitão , Improving UAV-Ground Digital Links with GPS Data , UAV's International Conf. , Bristol , United Kingdom , Vol. 1 , pp. 15.1 - 15.7 , April 2000 | BibTex
  • F. Nunes , J. Leitão , Nonlinear Channel Estimation in Fading OFDM Systems , IEEE Global Telecommunications Conf. - GLOBECOM , Rio de Janeiro , Brazil , Vol. 4 , pp. 2157 - 2161 , December 1999 | BibTex
  • F. Nunes , J. Leitão , Fast Phase Acquisition Receiver for LEO Communications in Rician Channels , IEEE International Conf. on Communications - ICC , Vancouver , Canada , Vol. 2 , pp. 1058 - 1062 , June 1999 | BibTex
  • J. Sanguino , S. M. Marques , L. P. Pontes , J. Leitão , Architecture of a GPS-based Transponder. Application to a Vessel Traffic System , ESA DASIA , Lisbon , Portugal , Vol. -- , pp. 503 - 509 , May 1999 | BibTex
  • F. Nunes , J. Leitão , A Fast Phase Acquisition Receiver for Nongeostationary Orbit Satellites , Conf. on Telecommunications - ConfTele , Sesimbra , Portugal , Vol. 1 , pp. 50 - 54 , April 1999 | BibTex
  • F. Nunes , J. Leitão , Open-loop Receiver for MSK with Doppler Frequency Shift , IEEE Global Telecommunications Conf. - GLOBECOM , Sydney , Australia , Vol. 6 , pp. 3626 - 3631 , December 1998 | BibTex
  • F. S. Sena da Silva , J. Leitão , Contour Processing for Left Ventricle Function Automatic Classification , Portuguese Conf. on Pattern Recognition - RecPad , Lisboa , Portugal , Vol. I , pp. 199 - 204 , March 1998 | BibTex
  • F. Nunes , J. Leitão , Doppler Shift Robust Receiver for Digital Parallel Signalling in Fading Channels , IEEE Global Telecommunications Conf. - GLOBECOM , Phoenix , United States , Vol. 3 , pp. 1225 - 1229 , November 1997 | BibTex
  • P. Marques , F. Sousa , J. Leitão , A DSP Based Long Distance Echo Canceller using Short Length Centered Adaptive Filters , IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP , Munich , Germany , Vol. . , pp. . - . , May 1997 | BibTex
  • F. Nunes , J. Leitão , Doppler Shift Robust Receiver for Mobile Satellite Communications , IEEE Global Telecommunications Conf. - GLOBECOM , London , United Kingdom , Vol. 1 , pp. 405 - 409 , November 1996 | BibTex
  • F. Nunes , J. Leitão , A Nonlinear Filtering Approach to Symbol Detection and State Estimation in Rice/Rayleigh Channels , IEEE International Conf. on Communications - ICC , Seattle , United States , Vol. 3 , pp. 1795 - 1799 , June 1995 | BibTex
  • F. Nunes , J. Leitão , State Estimation in Rice/Rayleigh Channels Using a Nonlinear Filtering Technique , IEEE International Conf. on Communications - ICC , New Orleans , United States , Vol. 2 , pp. 903 - 907 , May 1994 | BibTex

Currently running projects1

Acronym Name Funding Agency Start date Ending date
DP-PMI Doctoral Programme in the Physics and Mathematics of Information: Foundations of Future Information Technologies (DP-PMI) FCT 01-01-2014 01-12-2021

Closed Projects9

Acronym Name Funding Agency Start date Ending date
ARNAGGS Advanced Receivers and Navigation Algorithms for GPS/Galileo Signals FCT/PTDC 01-09-2007 01-03-2011
CETMC Channel Estimation Techniques in Mobile Communications FCT/POSI 01-01-2001 31-12-2004
DNURS Development of a Navigation User Receiver Simulator ESA-ESTEC 03-01-2003 31-12-2003
ICNS Integrated Communication and Navigation Systems FCT/POSI 01-01-2001 01-01-2003
INPOS Indoors Positioning Using GNSS Aided Techniques QREN 01-06-2008 01-06-2010
ISSMIA Integration of Stochastic and Structural Models in Image and Pattern Analysis-Phase II FCT/POSI 01-06-2001 01-01-2003
P-Quantum Practical Quantum Communications IT/LA 01-09-2011 01-08-2013
QuantPrivTel QuantPrivTel: Quantum PrivateTelecommunications FCT/PTDC 01-01-2010 01-06-2013
QuantTel Quantum Secure Telecommunications IT/LA 01-11-2008 01-10-2010