Ponències/Comunicacions de congressos

Recent Submissions

  • Ionospheric scintillation anomalies associated with the 2021 La Palma volcanic eruption detected with Gnss-R and Gnss-Ro observations 

    Molina Ordóñez, Carlos; Boudriki Semlali, Badr Eddine; González Casado, Guillermo; Hyuk, Park; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2022)
    Conference report
    Restricted access - publisher's policy
    Recent studies have shown possible signatures or precursors of seismic activity in the ionosphere. Our group is focusing on ionospheric scintillation associated with seismic activity. By the time this study was conducted, ...

  • Feasibility of snapshot GNSS carrier phase amendment based on LAMBDA ratio tests 

    Liu, Xiao; Rovira Garcia, Adrià; Sanz Subirana, Jaume; Closas Gómez, Pau; Gusi Amigó, Adriá (2022)
    Conference report
    Open Access

  • GPS and Galileo Wide Area RTK concepts 

    Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Garcia Rodriguez, Alberto (Institut de Geomàtica, 2005)
    Conference report
    Open Access

  • 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)
    Conference report
    Open Access
    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 ...

  • Application of tomographic ionospheric corrections in WADGPS networks for real-time estimation of integrated water vapour 

    Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Colombo, Oscar L.; Van der Marel, Hans (Instituto de Navegacion de España, 2021)
    Conference report
    Open Access
    In recent years several authors have developed strategies that estimate the Integrated Water Vapor (IWV), proportional to the Zenith Tropospheric Delay (ZTD), in near real time --i.e. with a delay of one hour or more--. ...

  • Long-baseline (> 400Km) on the fly ambiguity resolution using ionospheric corrections with high geomagnetic activity 

    Colombo, Oscar L.; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2001)
    Conference lecture
    Open Access
    A procedure for resolving carrier phase ambiguities, even under unfavorable geomagnetic conditions, has been tested. Precise ionospheric corrections have been made using dual-frequency data from control stations. Successful ...

  • Network-based ionospheric gradient monitoring to support GBAS 

    Caamaño Albuerne, María; Felux, Michael; Gerbeth, Daniel; Juan Zornoza, José Miguel; González Casado, Guillermo; Sanz Subirana, Jaume (ION Publications (The Institute of navigation), 2019)
    Conference report
    Open Access
    Ionospheric anomalies, like large ionospheric gradients, might produce a difference between the ionospheric error experienced bythe Ground Based Augmentation System (GBAS) reference station and the aircraft on approach. ...

  • A Kinematic campaign to evaluate EGNOS 1046 maritime service 

    Ibáñez Segura, Deimos; Rovira Garcia, Adrià; Sanz Subirana, Jaume; Juan Zornoza, José Miguel; González Casado, Guillermo; Alonso Alonso, María Teresa; López-Salcedo, José Antonio; Jia, Huamin; Pancorbo, Fransico Javier; García, Carlos; Martín, Irene; Abadía, Santos Rodrigo (ION Publications (The Institute of navigation), 2019)
    Conference report
    Open Access
    Global Navigation Satellite Systems (GNSSs) have improved the efficiency and accuracy of transportation means. In terms of safety, the European Geostationary Navigation Overlay System (EGNOS) is providing vertical and ...

  • 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)
    Conference report
    Restricted access - author's decision
    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 ...

  • Ionospheric scintillation model limitations and impact in GNSS-R missions 

    Camps Carmona, Adriano José; González Casado, Guillermo; Juan Zornoza, José Miguel; Hyuk, Park; Barbosa, José (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    The ionosphere impacts radio-wave propagation, notably up to a few GHz. The main applications impacted by the ionosphere are GNSS positioning and timing, Earth Observations (especially low frequency SAR missions e.g. ...

  • 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)
    Conference report
    Restricted access - publisher's policy
    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. ...

  • Galileo characterization as Input to H-ARAIM and SBAS DFMC 

    Brieden, Phillip; Wallner, Stefan; Sanz Subirana, Jaume; Rovira Garcia, Adrià; Alonso Alonso, María Teresa; Baur, Oliver; Lauria, Domenico; Kirchner, Michael; Cosson, Fabrice; Spinelli, Enrico; Martini, Ilaria (2019)
    Conference report
    Restricted access - publisher's policy
    The characterization of Galileo Open Service signal-in-space (SiS) represents an essential input to Safety-of-Life (SoL) applications like Horizontal ARAIM (Advanced Receiver Autonomous Integrity Monitoring) and SBAS ...

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