Now showing items 1-9 of 9

  • 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)
    Conference report
    Restricted access - publisher's policy
    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 ...
  • 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
    Open Access
    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 ...
  • Design of a camera for the Image Stabilization System for the Solar Orbiter project 

    Roma Dollase, David (Universitat Politècnica de Catalunya, 2014-03)
    Master thesis
    Open Access
    [ANGLÈS] The Correlation Tracking Camera (CTC) is a high frame rate low resolution camera. It is used by the Image Stabilization System (ISS), which function is to detect and correct the jitter introduced by the spacecraft. ...
  • Global ionospheric maps : estimation and assessment in post-processing and real-time 

    Roma Dollase, David (Universitat Politècnica de Catalunya, 2019-04-09)
    Doctoral thesis
    Open Access
    The research of this paper-based dissertation is focused on Global Ionospheric Maps (GIM) generation and assessment. In summary, the novelty and thematic unity in this works relies on four different but complementary topics: ...
  • Methodology and consistency of slant and vertical assessments for ionospheric electron content models 

    Hernández Pajares, Manuel; Roma Dollase, David; Krankowski, Andrzej; García Rigo, Alberto; Orús Pérez, Raul (2017-12)
    Article
    Open Access
    A summary of the main concepts on global ionospheric map(s) [hereinafter GIM(s)] of vertical total electron content (VTEC), with special emphasis on their assessment, is presented in this paper. It is based on the experience ...
  • Precise ionospheric electron content monitoring from single- frequency GPS receivers 

    Hernández Pajares, Manuel; Roma Dollase, David; García Fernández, Miquel; Orús Pérez, Raul; García Rigo, Alberto (2018-10-01)
    Article
    Restricted access - publisher's policy
    The number of existing global positioning system (GPS) single-frequency receivers continues growing. More than 90% of GPS receivers are implemented as low-cost single-frequency chipsets embedded in smartphones. This provides ...
  • Real time global ionospheric maps: a low latency alternative to traditional GIMs 

    Roma Dollase, David; Hernández Pajares, Manuel; García Rigo, Alberto; Laurichesse, Denis; Schmidt, Michael; Erdogan, Eren; Yuan, Yunbin; Li, Zishen; Gómez-Cama, José Ma.; Krankowski, Andrzej (2016)
    Conference lecture
    Restricted access - publisher's policy
    Since the late nineties different entities have been generating and distributing Global Ionospheric Maps (GIMs). In this time, multiple new application have arisen from the determination of electron content distribution ...
  • Real-time global ionospheric modelling from GNSS data with RT-TOMION model 

    Roma Dollase, David; López Cama, José María; Hernández Pajares, Manuel; García Rigo, Alberto (European Space Agency (ESA), 2015)
    Conference lecture
    Restricted access - publisher's policy
    As it is well known, the ionosphere, the region of the atmosphere between 50 and 1000 km height approximately containing the most part of its free electrons, has an important effect on Global Navigation Satellite System ...
  • St. Patrick’s Day 2015 geomagnetic storm analysis based on Real Time Ionosphere Monitoring 

    García Rigo, Alberto; Roma Dollase, David; Hernández Pajares, Manuel; Li, Zishen; Terkildsen, Michael; Ghoddousi Fard, Reza; Dettmering, Denise; Erdogan, Eren; Haralambous, Haris; Beniguel, Yannick; Berdermann, Jens; Kriegel, Martin; Krypiak-Gregorczyk, Anna; Gulyaeva, Tamara L.; Komjathy, Attila; Vergados, Panagiotis; Feltens, Joachim; Zandbergen, René; Olivares, German; Fuller Rowell, Tim; Altadill, David; Blanch, Estefania; Bergeot, Nicolas; Krankowski, Andrzej; Agrotis, Loukis; Galkin, Ivan; Orus-Perez, Raul; S. Prol, Fabricio (2017)
    Conference lecture
    Open Access
    A detailed analysis is presented for the days in March, 2015 surrounding St. Patrick’s Day 2015 geomagnetic storm, based on the existing real-time and near real-time ionospheric models (global or regional) within the ...