Papers in Conference Proceedings  [36] 

- Sousa, F.; Nunes, F.; "Characterization and Performance Analysis of a VDFLL GNSS Receiver Architecture", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2012.
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- Nunes, F.; Sousa, F.; "Jamming Detection in GNSS Signals Using the Sample Covariance Matrix", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2012.
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- Sousa, F.; Nunes, F.; "New Expressions for the Autocorrelation Function of Galileo Signals", Proc European Navigation Conf. - ENC-GNSS, London, United Kingdom, Vol. I, pp. 1 - 15, November, 2011.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Performance Analysis of Low-Complexity VDLL Architectures for GNSS Signals", Proc European Navigation Conf. - ENC-GNSS, London, United Kingdom, Vol. 1, pp. 1 - 13, November, 2011.
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- J. Lorga; P. F. Silva; J. Silva; T. Silva; M. Nunes; Nunes, F.; Sousa, F.; "GNSS Hybridization for Indoor Positioning", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 13, December, 2010.
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- Nunes, F.; Sousa, F.; "Low-Complexity VDLL Receiver for Multi-GNSS Constellations", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2010.
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- Sousa, F.; Nunes, F.; "Near-Far effect mitigation for GNSS software receivers using subspace projection", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 6, December, 2010.
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- Nunes, F.; Sousa, F.; N. Delgado; "A VDLL Approach to GNSS Cell Positioning for Indoor Scenarios", Proc Institute of Navigation GPS/GNSS Conf., Savannah, United States, Vol. 1, pp. 1690 - 1699, September, 2009.
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- Sousa, F.; Nunes, F.; Leitão, J.; "Correlation Losses and Interference Rejection due to Quantization in CBOC Receivers", Proc Institute of Navigation GPS/GNSS Conf., Savannah, United States, Vol. 1, pp. 3234 - 3241, September, 2009.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Performance Analysis of Altimeter-Aided GNSS Receiver for Indoor Scenarios", Proc Conf. on Telecommunications - ConfTele, Santa maria da Feira, Portugal, Vol. 1, pp. 1 - 4, May, 2009.
Abstract | Full text (PDF 259KB) | BibTex

- Nunes, F.; Sousa, F.; Leitão, J.; "Code Tracking Algorithm for GNSS Open-Loop Receivers Using Autocorrelation Interpolation", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2008.
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- Sousa, F.; Nunes, F.; Leitão, J.; "Multipath Mitigation Techniques in MBOC GPS/Galileo Signals Using the CCRW Concept", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2008.
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- Nunes, F.; Sousa, F.; Leitão, J.; "BOC/MBOC Multicorrelator Receiver with Least-Squares Multipath Mitigation Technique ", Proc Institute of Navigation GPS/GNSS Conf., Savannah, United States, Vol. 1, pp. 1 - 11, September, 2008.
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- Sousa, F.; Nunes, F.; Leitão, J.; "Code Correlation Reference Waveforms for Multipath Mitigation in MBOC GNSS Receivers", Proc European Navigation Conf. - ENC-GNSS, Toulouse, France, Vol. 1, pp. 1 - 10, April, 2008.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Least-Squares Minimization Technique for Multipath Mitigation in GNSS Receivers", Proc European Navigation Conf. - ENC-GNSS, Toulouse, France, Vol. 1, pp. 1 - 11, April, 2008.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Nonlinear Least-Squares Algorithm for Close-in Multipath Mitigation in GNSS Receivers", Proc Institute of Navigation GPS/GNSS Conf., Fort Worth, United States, Vol. I, pp. 1 - 9, September, 2007.
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- Nunes, F.; Leitão, J.; Sousa, F.; "Improving Pseudorange Estimation in GNSS Receivers with a Recursive Bayesian Approach", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 1 - 4, May, 2007.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Parallel Bayesian Code Delay and Doppler frequency Estimation in GNSS Receivers", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2006.
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- Sousa, F.; Nunes, F.; Leitão, J.; "Strobe Correlator Design for Multipath Mitigation in BOC GNSS Receivers", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2006.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Kalman Filtering for Acquisition of GNSS Signals in Highly-Manoeuvrable Receivers", Proc IEEE Position, Location and Navigation Symp. - PLANS, San Diego, United States, Vol. 1, pp. 1 - 9, April, 2006.
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- Sousa, F.; Nunes, F.; Leitão, J.; "Strobe Pulse Design for Multipath Mitigation in BOC GNSS Receivers", Proc IEEE Position, Location and Navigation Symp. - PLANS, San Diego, United States, Vol. 1, pp. 1 - 8, April, 2006.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Improving Multipath Mitigation in GPS/Galileo BOC Signals with Gating Functions", Proc Institute of Navigation Annual Meeting, Cambridge-Boston, United States, Vol. 1, pp. 498 - 507, June, 2005.
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- Sousa, F.; Nunes, F.; Leitão, J.; "Partial Correlation Technique for the Acquisition of Weak GPS/Galileo Signals ", Proc Institute of Navigation Annual Meeting, Cambridge-Boston, United States, Vol. 1, pp. 543 - 552, June, 2005.
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- Nunes, F.; Sousa, F.; J. Silva; Leitão, J.; "Hybrid Code Delay Estimator for GPS/Galileo BOC Signals Using the Innovations Approach", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. 1 - 4, April, 2005.
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- Sousa, F.; Nunes, F.; Leitão, J.; "An Acquisition Algorithm for Weak Signals in Galileo and Modernized GPS Systems", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 480 - 487, December, 2004.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Multipath Mitigation Technique for BOC Signals Using Gating Functions", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2004.
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- A. Nunes; T. Ferreira; J. Borràs; Nunes, F.; Sousa, F.; G. Seco; "Signal Generator and Receiver Toolbox for Galileo/GPS Signals", Proc ESA Workshop on Satellite Navigation User Equipment Technologies (NAVITEC), Noordwijk, Netherlands, Vol. 1, pp. 1 - 8, December, 2004.
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- Nunes, F.; Sousa, F.; Leitão, J.; "An Innovations Approach to False-lock Mitigation for GPS/Galileo BOC Signals", Proc Institute of Navigation GPS/GNSS Conf., Long Beach, CA, United States, Vol. 1, pp. 1 - 8, September, 2004.
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- Nunes, F.; Sousa, F.; Leitão, J.; "Innovations-based Code Discriminator for GPS/Galileo BOC Signals", Proc IEEE Vehicular Networking Conf. (VNC), Los Angeles, United States, Vol. 1, pp. 1 - 5, September, 2004.
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- Sousa, F.; "Fast Acquisition and Tracking in GNSS Receivers: An Innovations Based Approach", Proc ESA DSP, Catnia, Italy, Vol. 1, pp. 412 - 419, September, 2003.
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- Sousa, F.; Leitão, J.; "Adaptive Carrier Tracking in Mobile Communication – An Innovations-Based Approach", Proc IEEE Vehicular Networking Conf. (VNC), Vancouver, Canada, Vol. 4, pp. 2273 - 2277, September, 2002.
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- Sousa, F.; Leitão, J.; "Sincronização baseada no modelo da dinâmica emissor-receptor em comunicação móvel", Proc Jornadas de Engenharia de Electrónica e Telecomunicações e de Computadores do ISEL, Lisboa, Portugal, Vol. 1, pp. 1 - 8, May, 2002.
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- Sousa, F.; Leitão, J.; "Carrier Tracking and Symbol Timing in Highly Accelerative Mobile Communications", Proc ESA DSP, Lisboa, Portugal, Vol. 1, pp. 1 - 8, October, 2001.
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- Leitão, J.; Sousa, F.; "Recursive Bayesian Phase Estimation in Ranging and Mobile Communication", Proc IEEE Workshop on Statistical Signal Processing - SSP, Singapore, Singapore, Vol. 1, pp. 202 - 205, August, 2001.
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- Sousa, F.; Leitão, J.; "Mobile Communications based on an Emitter/Receiver Dynamics Model", Proc IEEE Vehicular Networking Conf. (VNC), Rhodes, Greece, Vol. 1, pp. 2998 - 3002, May, 2001.
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- Marques, P.; Sousa, F.; Leitão, J.; "A DSP Based Long Distance Echo Canceller using Short Length Centered Adaptive Filters", Proc IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP, Munich, Germany, Vol. ., pp. . - ., May, 1997.
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