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Ara es mostren els items 80-99 de 122

    • Open source precise point positioning with GNSS data structures and the GPSTk 

      Salazar Hernández, Dagoberto José; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (EGU, 2008-04-13)
      Comunicació de congrés
      Accés obert

    • Open source precise point positioning with GNSS data structures and the GPSTk 

      Salazar Hernández, Dagoberto José; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (European Geoscience Union, 2008-04)
      Article
      Accés obert

    • Plasmaspheric Electron Content contribution inferred from ground and radio occultation derived Total Electron Content 

      Aragón Ángel, María Ángeles; Sanz Subirana, Jaume; Juan Zornoza, José Miguel; Hernández Pajares, Manuel; Altadill, D. (2012)
      Text en actes de congrés
      Accés obert
      The FORMOSAT-3/COSMIC satellite constellation has become an important source of remote sensing data globally distributed for the sounding of the atmosphere of the Earth and, in particular, the ionosphere. In this study, ...

    • Preliminary NeQuick assessment for future single frequency users of GALILEO 

      Aragón Ángel, María Ángeles; Orús Pérez, Raül; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2005)
      Text en actes de congrés
      Accés obert
      The NeQuick model is the ionospheric mo del that will be used by the GALILEO single frequency user to compute ionospheric corrections. In this framework, the aim of this study is to show a preliminary assessment of the ...

    • Procesado de Datos GPS: código y fase. Algoritmos, técnicas y recetas. 

      Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (gAGE/UPC, 2005-07)
      Llibre
      Accés restringit per política de l'editorial

    • PRTODTS monthly progress report no 1 (February 2009) 

      Hernández Pajares, Manuel; Ramos Bosch, Pedro; Sanz Subirana, Jaume; Juan Zornoza, José Miguel (2009-03-03)
      Report de recerca
      Accés restringit per acord de confidencialitat

    • PRTODTS monthly progress report no 2 (March 2009) 

      Hernández Pajares, Manuel; Ramos Bosch, Pedro; Sanz Subirana, Jaume; Juan Zornoza, José Miguel (2009-04-01)
      Report de recerca
      Accés restringit per acord de confidencialitat

    • 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 ...

    • Real time Ionospheric determination at global scale 

      Hernández Pajares, Manuel; Sanz Subirana, Jaume; García Rigo, Alberto (2011)
      Text en actes de congrés
      Accés obert
      The global ionospheric determination has been possible in the last 15 years thanks to the availability of a new type of ionospheric sensor with a very high spatial and temporal sampling: the dual-frequency GPS receivers. ...

    • 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 ...

    • RTK Feasibility Analysis for GNSS Snapshot Positioning 

      Liu, Xiao; Ribot, Miguel Ángel; Gusi, Adrià; Closas Gómez, Pau; Rovira Garcia, Adrià; Sanz Subirana, Jaume (ION Publications (The Institute of navigation), 2020)
      Text en actes de congrés
      Accés restringit per decisió de l'autor
      With snapshot positioning becoming popular for various applications, the present contribution focuses on the feasibility of achieving Real Time Kinematics (RTK) positioning using snapshot data, i.e. a very brief interval ...

    • SBAS ionospheric performance evaluation tests 

      Prats Menéndez, Xavier; Orús Pérez, Raül; Sanz Subirana, Jaume; Farnworth, Richard; Soley, Santiago (2003-02)
      Text en actes de congrés
      Accés obert
      Satellite Based Augmentation systems (SBAS) provide to Global Navigation Satellite Systems (GNSS) users with an extra set of information, in order to enhance accuracy and integrity levels of GNSS stand alone positioning. ...

    • 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 ...