Exploració per tema "ionosphere"

Ara es mostren els items 1-8 de 8

    • Assessment of centre national d'Études spatiales real-time ionosphere maps in instantaneous precise real-time kinematic positioning over medium and long baselines 

      Tomaszewski, Dariusz; Wielgosz, Pawel; Rapinski, Jacek; Krypiak-Gregorczyk, Anna; Kazmierczak, Rafal; Hernández Pajares, Manuel; Yang, Heng; Orús Pérez, Raul (Multidisciplinary Digital Publishing Institute (MDPI), 2020-04-17)
      Article
      Accés obert
      Precise real-time kinematic (RTK) Global Navigation Satellite System (GNSS) positioning requires fixing integer ambiguities after a short initialization time. Originally, it was assumed that it was only possible at a ...

    • Assessment of global ionospheric maps performance by means of ionosonde data 

      Jerez, Gabriel Olivera; Hernández Pajares, Manuel; Prol, Fabricio dos Santos; Alves, Daniele Barroca Marra; Monico, João Francisco Galera (Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-21)
      Article
      Accés obert
      This work presents a new method for assessing global ionospheric maps (GIM) using ionosonde data. The method is based on the critical frequency at the F2 layer directly measured by ionosondes to validate VTEC (vertical ...

    • Atmospheric Tomography Using Satellite Radio Signals 

      Flores Jiménez, Alejandro (Universitat Politècnica de Catalunya, 2000-02-04)
      Tesi
      Accés obert
      Los sistemas de posicionamiento global GNSS (GPS y GLONASS) se han convertido en una herramienta básica para obtener medidas geodésicas de la Tierra y en una fuente de datos para el estudio atmosférico. Proporcionan cobertura ...

    • Direct determination of electron density profiles from GNSS occulttion data 

      Aragón Ángel, María Ángeles; Hernández Pajares, Manuel; Miguel Juan, Miguel; Sanz Subirana, Jaume; Ramos Bosch, Pedro (2008-08-07)
      Comunicació de congrés
      Accés obert

    • Implementation of GNSS ionospheric models in gLAB 

      Ibáñez Segura, Deimos (Universitat Politècnica de Catalunya, 2014-12)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] gLAB is an open source tool developed in gAGE group under the terms of an ESA contract. It currently processes full GPS data, being capable of doing precise point positioning. With the appearance of new satellite ...

    • Ionospheric effects in GNSS-reflectometry from pace 

      Camps Carmona, Adriano José; Hyuk, Park; Foti, Giuseppe; Gommenginger, Christine (2016-12-01)
      Article
      Accés obert
      Global navigation satellite systems-reflectometry (GNSS-R) is an emerging technique that uses navigation opportunistic signals as a multistatic radar. Most GNSS systems operate at L-band, which is affected by the ionosphere. ...

    • Mejora de la transformada inversa de Abel: aplicación ocultaciones ionosféricas de COSMIC/FORMOSAT-3 

      Aragón Ángel, María Ángeles; Hernández Pajares, Manuel; Miguel, J.; Sanz Subirana, Jaume (2008-09-24)
      Comunicació de congrés
      Accés obert

    • Towards cooperative global mapping of the ionosphere: fusion feasibility for igs and iri with global climate vtec maps 

      Fron, Adam; Krankowski, Andrzej; Galkin, Ivan; Bilitza, D.; Hernández Pajares, Manuel; Reinisch, Bodo W.; Li, Zishen; Kotulak, Kacper; Zakharenkova, I.; Cherniak, Iurii; Roma Dollase, David; Wang, Ningbo; Flisek, Pawel; García Rigo, Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2020-11-01)
      Article
      Accés obert
      Recommendations of the International Reference Ionosphere (IRI) Workshop 2017 in Taoyuan City, Taiwan and International GNSS Service (IGS) Workshop 2018 in Wuhan, China included establishment of an ionosphere mapping service ...