gAGE - grup d'Astronomia i GEomàtica

 

Recerca i transferència de tecnologia en l’àmbit de la navegació molt precisa GNSS (GPS, GLONASS, GALILEO, SBAS) i de l’observació de la Terra (sondeig atmosfèric: ionosfera i troposfera). Modelització de processos i sistemes en l’àmbit de les ciències de la Terra, incloent–hi la biotecnologia.

Pàgina web del grup de recerca

Recent Submissions

  • Network-based ionospheric gradient monitoring to support GBAS 

    Caamaño Albuerne, María; Juan Zornoza, José Miguel; Felux, Michael; Gerbeth, Daniel; González Casado, Guillermo; Sanz Subirana, Jaume (2021-02-11)
    Article
    Open Access
    Large ionospheric gradients acting between a Ground Based Augmentation System (GBAS) reference station and an aircraft on approach could lead to hazardous position errors if undetected. Current GBAS stations provide solutions ...

  • Cloud-based single-frequency Snapshot RTK positioning 

    Liu, Xiao; Ribot, Miguel Ángel; Gusi Amigó, Adriá; Rovira Garcia, Adrià; Sanz Subirana, Jaume; Closas Gómez, Pau (Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-26)
    Article
    Open Access
    With great potential for being applied to Internet of Things (IoT) applications, the concept of cloud-based Snapshot Real Time Kinematics (SRTK) was proposed and its feasibility under zero-baseline configuration was confirmed ...

  • Effect of the polar cap ionospheric sporadic-E layer on GNSS-based positioning: a case study at Resolute Bay, Canada, September 5, 2012 

    Nie, Wenfeng; Wang, Yong; Rovira Garcia, Adrià; Zheng, Dunyong; Xu, Tianhe (2022-04)
    Article
    Restricted access - publisher's policy
    We focus on the impacts of the polar cap ionospheric sporadic-E (Es) layer that occurred at Resolute Bay, Canada, on September 5, 2012, on the quality of the Global Positioning System (GPS) observable and the positioning ...

  • 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 ...

  • A multi-frequency method to improve the long-term estimation of GNSS clock corrections and phase biases 

    Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Ventura Traveset, Javier; Cacciapuoti, Luigi; Schoenemann, Erik (2021-12)
    Article
    Open Access
    The space segment of the Global Navigation Satellite System (GNSS) is equipped with highly stable atomic clocks. In order to use these clocks as references, their time offsets must be estimated from ground measurements as ...

  • Ionospheric corrections tailored to the Galileo High Accuracy Service 

    Rovira Garcia, Adrià; Timote Bejarano, Cristhian Camilo; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Fernandez Hernandez, Ignacio; Orús Pérez, Raul; Blonski, Daniel (2021-12)
    Article
    Open Access
    The Galileo High Accuracy Service (HAS) is a new capability of the European Global Navigation Satellite System that is currently under development. The Galileo HAS will start providing satellite orbit and clock corrections ...

  • Analysis of ‘Pre-Fit’ Datasets of gLAB by Robust Statistical Techniques 

    Alonso Alonso, María Teresa; Ferigato, Carlo; Ibáñez Segura, Deimos; Perrotta, Domenico; Rovira Garcia, Adrià; Sordini, Emmanuele (MDPI AG, 2021-05-24)
    Article
    Open Access
    The GNSS LABoratory tool (gLAB) is an interactive educational suite of applications for processing data from the Global Navigation Satellite System (GNSS). gLAB is composed of several data analysis modules that compute the ...

  • 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. ...

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