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Ara es mostren els items 86-105 de 118

    • Rapid Open Source GPS software development for modern embedded systems:using the GPSTk with the Gumstix 

      Salazar Hernández, Dagoberto José; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2006-12)
      Text en actes de congrés
      Accés obert
      This work shows how the combination of GPS Open Source Software (GOSS) and advanced full function miniature computers (FFMC) allows rapid development, implementation and testing of advanced embedded GNSS data processing ...

    • Real time application of Tomion model 

      Orús Pérez, Raül; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Aragón Ángel, María Ángeles; García Rigo, Alberto (2010)
      Comunicació de congrés
      Accés obert
      Since the first development of the TOMION(TOmographic Model of the IONosphere),in1995,gAGE/UPC has been improving the performance and reliability of this technique. The TOMION kernel relies on the computation of the ...

    • Removing day-boundary discontinuities on GNSS clock estimates: methodology and results 

      Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Ventura Traveset, Javier; Cacciapuoti, Luigi; Schoenemann, Erik (2021-04)
      Article
      Accés obert
      Global navigation satellite system (GNSS) satellites are equipped with very stable atomic clocks that can be used for assess-ing the models and strategies involved in the estimation processes, where the clock estimates ...

    • Report on the design and specifications of the TID algorithms and products 

      Altadill, David; Belehaki, Anna; Blanch, Estefania; Buresova, Dalia; Galkin, Ivan; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Segarra, Antoni; Timote Bejarano, Cristhian Camilo (2018-05-31)
      Report de recerca
      Accés obert
      TechTIDE project, funded by the European Commission Horizon 2020 research and innovation program [AD-1], will establish a pre-operational system to demonstrate reliability of a set of TID (Travelling Ionospheric Disturbances) ...

    • Report on the EGNSS competition after Y1 

      Sanz Subirana, Jaume; Juan Zornoza, José Miguel; Alonso Alonso, María Teresa (2016-06-08)
      Report de recerca
      Accés restringit per decisió de l'autor

    • Report on the EGNSS competition after Y2 

      Sanz Subirana, Jaume; Juan Zornoza, José Miguel; Alonso Alonso, María Teresa; Povero, Gabriella (2017-05-21)
      Report de recerca
      Accés restringit per decisió de l'autor

    • Report on the final TechTIDE products 

      Altadill, David; Belehaki, Anna; Segarra, Antoni; Blanch, Estefania; Buresova, Dalia; Ioanna, Tsagouri; Borries, Claudia; Galkin, Ivan; Haralambous, Haris; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Oikonomou, Christina; Chum, Jaroslav; Timote Bejarano, Cristhian Camilo (2019-10-31)
      Report de recerca
      Accés obert
      The document presents a report on the final products in TechTIDE. The TID identification codes in TechTIDE have been adjusted since its first release driven by the assessment of the TID impact on aerospace and ground systems ...

    • Report on TID algorithms 

      Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Altadill, David; Belehaki, Anna; Blanch, Estefania; Borries, Claudia; Buresova, Dalia; Galkin, Ivan; Haralambous, Haris; Ivan, Kutiev; Oikonomou, Christina; Ioanna, Tsagouri (2018-08-31)
      Report de recerca
      Accés obert
      TechTIDE project, funded by the European Commission Horizon 2020 research and innovation program [AD-1], will establish a pre-operational system to demonstrate reliability of a set of TID (Travelling Ionospheric ...

    • Revisit the calibration errors on experimental slant total electron content (TEC) determined with GPS 

      Nie, Wenfeng; Xu, Tianhe; Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Chen, Wu; Xu, Guochang (2018-06-26)
      Article
      Accés obert
      The calibration errors on experimental slant total electron content (TEC) determined with global positioning system (GPS) observations is revisited. Instead of the analysis of the calibration errors on the carrier phase ...

    • Solar EUV flux rate estimation during mid and strong flares from the ionospheric electron content response signature in GNSS observations 

      Hernández Pajares, Manuel; García Rigo, Alberto; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Monte Moreno, Enrique; Aragón Ángel, María Ángeles (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A simple and precise technique to measure the sudden Extreme Ultraviolet (EUV) radiation increase of the Sun, during mid and strong flares, has been formulated and demonstrated for the most active part of the last Solar ...

    • Solar flare detection system based on global positioning system data: first results 

      Hernández Pajares, Manuel; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (Elsevier, 2006-09-30)
      Article
      Accés obert
      A solar flare detector has been developed using the Global Positioning System (GPS) capabilities to monitor the ionospheric Total Electron Content (TEC). It is based on obtaining the variation of the vertical TEC data ...

    • Special Issue on GNSS Data Processing and Navigation 

      Rovira Garcia, Adrià; Juan Zornoza, José Miguel (Multidisciplinary Digital Publishing Institute (MDPI), 2020-08)
      Article
      Accés obert
      Global Navigation Satellite System (GNSS) data can be used in a myriad of ways. The current number of applications exceed by far those originally GNSS was designed for. As an example, the present Special Issue on GNSS Data ...

    • State-of-art products for real time scintillation monitoring and consolidated requirements for the activity 

      González Casado, Guillermo; Juan Zornoza, José Miguel; Yin, Yu; Timote Bejarano, Cristhian Camilo; Sanz Subirana, Jaume; Rovira Garcia, Adrià (2022-12-15)
      Report de recerca
      Accés restringit per acord de confidencialitat

    • Statistical analysis of the results: assessment of the impact on aerospace and ground systems 

      Timote Bejarano, Cristhian Camilo; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Tölle, Jens; Magdaleno, Sergio; Rupiewicz, Joanna; Mielich, Jens (2019-04-30)
      Report de recerca
      Accés obert
      The aim of this WP5 is to specify the impact of TID in EGNOS, N-RTK and HF systems through statistical correlation of the performance data recorded from system operators and of TID detection results.Within the ...

    • Synthetic events description, generation and characterization report 

      González Casado, Guillermo; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2015-02-20)
      Report de recerca
      Accés obert

    • The ESA/UPC GNSS-Lab tool (gLAB): an advanced multipurpose package to process and analyse GNSS data 

      Hein, G.; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Ramos Bosch, Pedro; Rovira-Garcia, A.; Salazar Hernández, Dagoberto José; Ventura-Traveset, J.; Lopez-Echazarreta, C. (European Space Agency (ESA), 2010)
      Text en actes de congrés
      Accés obert
      Satellite Navigation has become a keystone for the development of Europe and its citizens. It is then essential to provide adequate educational programmes so to ensure a prepared workforce for the GNSS sector in Europe. ...

    • The Geodetic Detrending technique: enabling high-accuracy navigation under scintillation 

      Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Scintillation is a particular type of space weather perturbation occurred when the signals from the Global Navigation Satellite System (GNSS) traverse irregularities in the ionosphere; the upper layer of the Earth atmosphere. ...

    • The GNSS Laboratory Tool Suite (gLAB) updates: SBAS, DGNSS and Global Monitoring System 

      Ibáñez Segura, Deimos; Rovira Garcia, Adrià; Sanz Subirana, Jaume; Juan Zornoza, José Miguel; González Casado, Guillermo; Jimenez-Baños, David; López de Echazarreta, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents recent and ongoing updates to the free and open-source advanced interactive multi-purpose package for processing and analysing Global Navigation Satellite System (GNSS) data, named GNSS-Lab Tool suite ...

    • The GPS Toolkit: world class open source software tools for the GNSS research community 

      Salazar Hernández, Dagoberto José; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2007-02)
      Text en actes de congrés
      Accés obert
      The ”GPS Toolkit” (GPSTk) project is an advanced GNSS Open Source Software (GOSS) suite initiated by the Applied Research Laboratories of the University of Texas (ARL:UT), aiming to provide a world class GNSS library ...

    • The impacts of the ionospheric observable and mathematical model on the Global Ionosphere Model 

      Nie, Wenfeng; Xu, Tianhe; Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Chen, Wu; Xu, Guochang (2018-02-01)
      Article
      Accés obert
      A high-accuracy Global Ionosphere Model (GIM) is significant for precise positioning and navigating with the Global Navigation Satellite System (GNSS), as well as space weather applications. To obtain a precise GIM, it is ...