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

  • Multi-satellite cycle-slip detection and exclusion using the noise subspace of residual dynamics 

    Riba Sagarra, Jaume; Cabrera Estanyol, Ferran de; Juan Zornoza, José Miguel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Real-time detection of cycle-slips on undifferenced carrier-phase measurements is an important task to properly exclude wrong phase trackers from precise positioning algorithms. The detection is especially challenging in ...

  • The GNSS Laboratory Tool Suite (gLAB) updates: SBAS, DGNSS and Global Monitoring System 

    Ibáñez Segura, Deimos; Rovira Garcia, Adrià; Sanz Subirana, Jaume; Juan Zornoza, José Miguel; González Casado, Guillermo; Jimenez-Baños, David; López de Echazarreta, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    This work presents recent and ongoing updates to the free and open-source advanced interactive multi-purpose package for processing and analysing Global Navigation Satellite System (GNSS) data, named GNSS-Lab Tool suite ...

  • Improvement of the ionospheric radio occultation retrievals by means of accurate global ionospheric maps 

    Shao, Yixie; González Casado, Guillermo; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Rovira Garcia, Adrià (2018-12-22)
    Article
    Restricted access - author's decision
    The Abel inversion method is the classic approach to retrieve electron density profiles from radio occultation measurements, assuming that the electron density is only dependent upon height. In the early 2000s, the total ...

  • Improved modelling of ionospheric disturbances for remote sensing and navigation 

    Camps Carmona, Adriano José; Barbosa, José; Juan Zornoza, José Miguel; Blanch Llosa, Estefania; Altadill, David; González Casado, Guillermo; Vázquez Grau, Gregorio; Riba Sagarra, Jaume; Orus-Perez, Raul (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    A generic software tool to evaluate the impact of ionospheric disturbances is presented, including low and high latitude physically-based models, and low and high frequency fluctuations. This tool has been developed ...

  • Automated GPS Signal-in-Space anomalies monitoring over more than 11 years 

    Sanz Subirana, Jaume; Juan Zornoza, José Miguel; López de Echazarreta, Carlos; González Casado, Guillermo; Rovira Garcia, Adrià; Alonso Alonso, María Teresa; Ibáñez Segura, Deimos (ION Publications (The Institute of navigation), 2019)
    Conference report
    Restricted access - author's decision

  • Ionospheric scintillation monitoring using GNSS-R? 

    Camps Carmona, Adriano José; Hyuk, Park; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Barbosa, José; Fabbro, V; Lemorton, J; Orús Pérez, Raul (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    The characterization of the ionosphere and its impact on the propagation of radio-wave signals has received an increasing interest for satellite communications, Global Navigation Satellite Systems (GNSS) applications (i.e. ...

  • 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
    Open Access
    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 ...

  • Improved characterization and modeling of equatorial plasma depletions 

    Blanch Llosa, Estefania; Altadill, David; Juan Zornoza, José Miguel; Camps Carmona, Adriano José; Barbosa, José; González Casado, Guillermo; Riba Sagarra, Jaume; Sanz Subirana, Jaume; Vázquez Grau, Gregorio; Orús Pérez, Raul (2018-08-22)
    Article
    Open Access
    This manuscript presents a method to identify the occurrence of Equatorial Plasma Bubbles (EPBs) with data gathered from receivers of Global Navigation Satellite System (GNSS). This method adapts a previously existing ...

  • Model Design 

    Barbosa, José; Camps Carmona, Adriano José; Juan Zornoza, José Miguel; Orús Pérez, Raul (2017-07-10)
    External research report
    Restricted access - confidentiality agreement

  • Validation Plan 

    Barbosa, José; Camps Carmona, Adriano José; Juan Zornoza, José Miguel; Orús Pérez, Raul (2017-07-10)
    External research report
    Restricted access - confidentiality agreement

  • TEC Parametric Model validation and Approach to GNSS operational conditions 

    González Casado, Guillermo (2017-05-10)
    External research report
    Open Access

  • Feasibility of precise navigation in high and low latitude regions under scintillation conditions 

    Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Rovira Garcia, Adrià; Camps Carmona, Adriano José; Riba Sagarra, Jaume; Barbosa, José; Blanch Llosa, Estefania; Altadill, David; Orús Pérez, Raul (2018-02-06)
    Article
    Open Access
    Scintillation is one of the most challenging problems in Global Navigation Satellite Systems (GNSS) navigation. This phenomenon appears when the radio signal passes through ionospheric irregularities. These irregularities ...

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