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  Assessment of noise of MEMS IMU sensors of different grades for GNSS/IMU navigation 

  Suvorkin, Vladimir; García Fernández, Miquel; González Casado, Guillermo; Li, Mowen; Rovira Garcia, Adrià (Multidisciplinary Digital Publishing Institute (MDPI), 2024-03-19)
  Article
  Accés obert

  Inertial measurement units (IMUs) are key components of various applications including navigation, robotics, aerospace, and automotive systems. IMU sensor characteristics have a significant impact on the accuracy and ...
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  The 2021 la Palma volcanic eruption and its impact on ionospheric scintillation as measured from GNSS reference stations, GNSS-R and GNSS-RO 

  Molina Ordóñez, Carlos; Boudriki Semlali, Badr Eddine; González Casado, Guillermo; Hyuk, Park; Camps Carmona, Adriano José (European Geosciences Union (EGU), 2023-11-29)
  Article
  Accés obert

  Ionospheric disturbances induced by seismic activity have been studied in recent years by many authors, showing an impact both before and after the occurrence of earthquakes. In this study, the ionospheric scintillation ...
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  Software prototype for the Galileo ionospheric correction model: progress report 

  Aragón Ángel, María Ángeles; Zürn, M. (2016-11-15)
  Report de recerca
  Accés obert

  The document describing the particular ionospheric model developed for the Galileo satellite navigation system has been officially released [1]. Its publication allows GNSS receiver manufacturers to start the implementation ...
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  Beacon Satellite Symposium: Session 5B - June 30th 2016: Radio occultation techniques and measurements 

  Aragón Ángel, María Ángeles (2016-11-16)
  Report de recerca
  Accés obert

  During the Beacon Satellite Symposium, held in Trieste, Italy, between June 26 and July 1 2016, the JRC chaired the session 5B: Radio Occultation Techniques and Measurements. The corresponding abstract of the session is ...
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  The selection of basic functions for a time-varying model of unmodeled errors in medium and long GNSS baselines 

  Wang, Jiafu; Yu, Xianwen; Aragón Ángel, María Ángeles; Rovira Garcia, Adrià; Wang, Hao (Multidisciplinary Digital Publishing Institute (MDPI), 2023-10-19)
  Article
  Accés obert

  Unmodeled errors play a critical role in improving the positioning accuracy of Global Navigation Satellite Systems. Few studies have addressed unmodeled errors in medium and long baselines using their time correlation, ...
• State-of-art products for real time scintillation monitoring and consolidated requirements for the activity 

  González Casado, Guillermo; Juan Zornoza, José Miguel; Yin, Yu; Timote Bejarano, Cristhian Camilo; Sanz Subirana, Jaume; Rovira Garcia, Adrià (2022-12-15)
  Report de recerca
  Accés restringit per acord de confidencialitat
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  Inter-system biases solution strategies in multi-GNSS kinematic precise point positioning 

  Li, Mowen; Rovira Garcia, Adrià; Nie, Wenfeng; Xu, Tianhe; Xu, Guochang (2023-07)
  Article
  Accés obert

  Estimating inter-system biases (ISBs) is important in multi-constellation Global Navigation Satellite System (GNSS) processing. The present study aims to evaluate and screen out an optimal estimation strategy of ISB for ...
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  Ionospheric scintillation models: An inter-comparison study using GNSS data 

  Camps Carmona, Adriano José; Molina Ordóñez, Carlos; González Casado, Guillermo; Juan Zornoza, José Miguel; Lemorton, Joël; Fabbro, Vincent; Mainvis, Aymeric; Barbosa, José; Orús Pérez, Raul (IntechOpen, 2023-06-21)
  Capítol de llibre
  Accés obert

  Existing climatological ionosphere models, for example, GISM, SCIONAV, WBMOD, and STIPEE, have known limitations that prevent their wide use. In the framework of ESA study “Radio Climatology Models of the Ionosphere: Status ...
• 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)
  Text en actes de congrés
  Accés restringit per política de l'editorial

  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)
  Text en actes de congrés
  Accés obert
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  Neural network based model for global Total Electron Content forecasting 

  Cesaroni, Claudio; Spogli, Luca; Aragón Ángel, María Ángeles; Fiocca, Michel; Dear, Varuliator; De Franceschi, Giorgiana; Romano, Vincenzo (EDP Sciences, 2020-03)
  Article
  Accés obert

  We introduce a novel empirical model to forecast, 24 h in advance, the Total Electron Content (TEC) at global scale. The technique leverages on the Global Ionospheric Map (GIM), provided by the International GNSS Service ...
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  Comparison of GPS analysis strategies for high-accuracy vertical land motion 

  Kierulf, H P; Plag, H P; Bingley, R M; Teferle, N; Demir, C; Cingoz, A; Yildiz, H; Zdunek, R; Jaworski, L; Martínez Benjamín, Juan José; Orús Pérez, Raul; Aragón Ángel, María Ángeles (2008-01)
  Article
  Accés obert

  Tide gauges measure sea level changes relative to land. To separate absolute changes in sea level from vertical land movements tide gauges are often co-located with Continuous GPS (CGPS). In order to achieve an accuracy ...

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