Ara es mostren els items 1-20 de 47

  • A linear scale height Chapman model supported by GNSS occultation measurements 

    Olivares Pulido, German; Hernández Pajares, Manuel; Aragón Ángel, Maria Angeles; García Rigo, Alberto (2016-05)
    Comunicació de congrés
    Accés obert
    Global Navigation Satellite Systems (GNSS) radio occultations allow the vertical sounding of the Earth's atmosphere, in particular, the ionosphere. The physical observables estimated with this technique permit to test ...
  • Comparing performances of seven different global VTEC ionospheric models in the IGS context 

    Hernández Pajares, Manuel; Roma Dollase, David; Krankowski, Andrzej; García Rigo, Alberto; Orús Pérez, Raul (International GNSS Service (IGS), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A summary of the main concepts on Global Ionospheric Map(s) (hereinafter GIM(s)) of Vertical Electron Content (VTEC), with special emphasis on their assessment, is presented in this paper. It is based on the experience ...
  • Comprehensive ionospheric delay modelling for single-frequency GNSS precise positioning: first steps 

    Colombo, Oscar L.; Hernández Pajares, Manuel; Janssen, Volker; García Rigo, Alberto (International GNSS Service (IGS), 2016)
    Comunicació de congrés
    Accés restringit per política de l'editorial
  • Consistency of seven different GNSS global ionospheric mapping techniques during one solar cycle 

    Roma Dollase, David; Hernández Pajares, Manuel; Krankowski, Andrzej; Kotulak, Kacper; Ghoddousi Fard, Reza; Yuan, Yunbin; Li, Zishen; Zhang, Hongping; Shi, Chuang; Wang, Cheng; Feltens, Joachim; Vergados, Panagiotis; Komjathy, Attila; Schaer, Stefan C.; García Rigo, Alberto; Gómez Cama, José Mª (2017-11-28)
    Article
    Accés obert
    In the context of the International GNSS Service (IGS), several IGS Ionosphere Associated Analysis Centers have developed different techniques to provide global ionospheric maps (GIMs) of vertical total electron content ...
  • Contributions to ionospheric determination with global positioning system: solar flare detection and prediction of global maps of total electron content 

    García Rigo, Alberto (Universitat Politècnica de Catalunya, 2012-12-17)
    Tesi
    Accés obert
    Two research studies have been addressed in this thesis. Both of them are of actual scientific interest and are based on processing GNSS data. The first part of this thesis is devoted to GNSS detection and monitoring of ...
  • Description of the experiment set-up in Vietnam 

    Quang, Phuong Xuan; Vinh, La The; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; García Rigo, Alberto; Hai Tung, Ta (2013-07-03)
    Report de recerca
    Accés restringit per decisió de l'autor
  • Direct MSTID mitigation in precise GPS processing 

    Hernández Pajares, Manuel; Wielgosz, Pawel; Paziewski, Jacek; Krypiak-Gregorczyk, Anna; Krukowska, Marta; Stepniak, Katarzyna; Kaplon, Jan; Hadas, Tomasz; Sosnica, Krzysztof; Bosy, Jaroslaw; Orús Pérez, Raul; Monte Moreno, Enrique; Yang, Heng; García Rigo, Alberto; Olivares Pulido, German (2017-03)
    Article
    Accés restringit per política de l'editorial
    In this paper, the authors summarize a simple and efficient approach developed to mitigate the problem in precise GNSS positioning originated by the most frequent ionospheric wave signatures: the Medium Scale Travelling ...
  • Distribution and mitigation of higher-order ionospheric effects on precise GNSS processing 

    Hernández Pajares, Manuel; Aragón Ángel, María Ángeles; Defraigne, Pascale; Bergeot, Nicolas; Prieto Cerdeira, Roberto; García Rigo, Alberto (2014-04)
    Article
    Accés obert
    Higher-order ionospheric effects (I2+) are one of the main limiting factors in very precise Global Navigation Satellite Systems (GNSS) processing, for applications where millimeter accuracy is demanded. This paper summarizes ...
  • Experiments on the Ionospheric Models in GNSS 

    Vinh, La The; Quang, Phuong Xuan; García Rigo, Alberto; Rovira Garcia, Adrià; Ibáñez Segura, Deimos (2013)
    Text en actes de congrés
    Accés obert
    In GNSS, one of the main error sources of the Standard Positioning Service (SPS) is introduced by the ionosphere. Although this error can be cancelled by combining two signals at different frequencies, most of the ...
  • Global prediction of the vertical total electron content of the ionosphere based on GPS data 

    García Rigo, Alberto; Monte Moreno, Enrique; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Aragón Ángel, María Ángeles; Salazar Hernández, Dagoberto José (2011-12-29)
    Article
    Accés obert
    Although vertical total electron content (VTEC) forecasting is still an open subject of research, the use of predictions of the ionospheric state at a scale of several days is an area of increased interest. A global VTEC ...
  • GPS as a solar observational instrument: real-time estimation of EUV photons flux rate during strong, medium, and weak solar flares 

    Singh, Talwinder; Hernández Pajares, Manuel; Monte Moreno, Enrique; García Rigo, Alberto; Olivares Pulido, Germán (2015-12-15)
    Article
    Accés obert
    In this manuscript, the authors show how the Global Navigation Satellite Systems, GNSS (exemplified in the Global Positioning System, GPS), can be efficiently used for a very different purpose from that for which it was ...
  • Improved MSTID modelling and impact on precise GNSS processing 

    Hernández Pajares, Manuel; Wielgosz, Pawel; Paziewski, Jacek; Krypiak-Gregorczyk, Anna; Stepniak, Katarzyna; Bosy, Jaroslaw; Kaplon, Jan; Hadas, Tomasz; Orús Pérez, Raul; Monte Moreno, Enrique; Yang, Heng; Olivares Pulido, Germán; García Rigo, Alberto (2015)
    Comunicació de congrés
    Accés restringit per política de l'editorial
  • INSPIRE: DI 1-1 Technical Note with assessment of state-of-the-art of earthquake precursors identification 

    Krankowski, Andrzej; Pulinets, Sergey; Cherniak, Iurii; Hernández Pajares, Manuel; Rothkael, Hanna; Rojas Gregorio, José Ignacio; García Rigo, Alberto (2014-12-25)
    Report de recerca
    Accés restringit per acord de confidencialitat
  • INSPIRE: DI 1-2 Technical Note with definition of methodology for identification of earthquake signatures 

    Krankowski, Andrzej; Pulinets, Sergey; Cherniak, Iurii; Hernández Pajares, Manuel; Rothkael, Hanna; García Rigo, Alberto (2014-12-25)
    Report de recerca
    Accés restringit per acord de confidencialitat
  • INSPIRE: DI 2-1 Technical Note describing the design and development of the database with performance criteria 

    Krankowski, Andrzej; Hernández Pajares, Manuel; Pulinets, Sergey; Cherniak, Iurii; Rothkael, Hanna; Rojas Gregorio, José Ignacio; García Rigo, Alberto (2015-01-26)
    Report de recerca
    Accés restringit per acord de confidencialitat
  • IPRESES. Additional Technical Note #8: Virtual Box and Ciraolo SW (v1.0) 

    García Rigo, Alberto; Hernández Pajares, Manuel; Olivares Pulido, Germán (2015-04-22)
    Report de recerca
    Accés restringit per acord de confidencialitat
  • IPRESES: TN4 

    Hernández Pajares, Manuel; García Rigo, Alberto; Olivares Pulido, Germán (2014-12-14)
    Report de recerca
    Accés restringit per acord de confidencialitat
  • IPRESES: TN7 

    Hernández Pajares, Manuel; García Rigo, Alberto; Olivares Pulido, Germán (2014-12-02)
    Report de recerca
    Accés restringit per acord de confidencialitat
  • MONITOR - Ionospheric Monitoring System: An Analysis of Perturbed Days Affecting SBAS Performance 

    Hernández Pajares, Manuel; Prieto Cerdeira, Roberto; Beniguel, Yannick; García Rigo, Alberto; Kinrade, J; Kauristie, Kirsti; Orús Pérez, Raul; Schlüter, S.; Serant, Damien; Nava, Bruno; Krankowski, Andrzej; Secretan, Hugues; Sampedro Casis, Rodrigo; Prats, Xavier (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The Monitor project has been designed to monitor ionospheric events that would allow evaluating its impact on European GNSS Systems. It includes a network of ionospheric scintillation monitoring stations in various locations ...
  • MONITOR CCN: TN2230-40-50 update (Appendix L CAPF ICD) 

    Hernández Pajares, Manuel; García Rigo, Alberto (2014-01-15)
    Report de recerca
    Accés restringit per acord de confidencialitat