Now showing items 1-10 of 10

  • A linear scale height Chapman model supported by GNSS occultation measurements 

    Olivares Pulido, Germán; Hernández Pajares, Manuel; Aragón Ángel, Maria Angeles; García Rigo, Alberto (2016-05)
    Conference lecture
    Open Access
    Global Navigation Satellite Systems (GNSS) radio occultations allow the vertical sounding of the Earth's atmosphere, in particular, the ionosphere. The physical observables estimated with this technique permit to test ...
  • Direct MSTID mitigation in precise GPS processing 

    Hernández Pajares, Manuel; Wielgosz, Pawel; Paziewski, Jacek; Krypiak-Gregorczyk, Anna; Krukowska, Marta; Stepniak, Katarzyna; Kaplon, Jan; Hadas, Tomasz; Sosnica, Krzysztof; Bosy, Jaroslaw; Orús Pérez, Raul; Monte Moreno, Enrique; Yang, Heng; García Rigo, Alberto; Olivares Pulido, Germán (2017-03)
    Article
    Open Access
    In this paper, the authors summarize a simple and efficient approach developed to mitigate the problem in precise GNSS positioning originated by the most frequent ionospheric wave signatures: the Medium Scale Travelling ...
  • Electron density extrapolation above F2 peak by the linear Vary-Chap model supporting new Global Navigation Satellite Systems-LEO occultation missions 

    Hernández Pajares, Manuel; García Fernández, Miquel; Rius Carrasco, Antoni; Notarpietro, Riccardo; von Engeln, Axel; Olivares Pulido, Germán; Aragón Ángel, Maria Angeles; García Rigo, Alberto (2017-08)
    Article
    Open Access
    The new radio-occultation (RO) instrument on board the future EUMETSAT Polar System-Second Generation (EPS-SG) satellites, flying at a height of 820 km, is primarily focusing on neutral atmospheric profiling. It will also ...
  • GPS as a solar observational instrument: real-time estimation of EUV photons flux rate during strong, medium, and weak solar flares 

    Singh, Talwinder; Hernández Pajares, Manuel; Monte Moreno, Enrique; García Rigo, Alberto; Olivares Pulido, Germán (2015-12-15)
    Article
    Open Access
    In this manuscript, the authors show how the Global Navigation Satellite Systems, GNSS (exemplified in the Global Positioning System, GPS), can be efficiently used for a very different purpose from that for which it was ...
  • Improved MSTID modelling and impact on precise GNSS processing 

    Hernández Pajares, Manuel; Wielgosz, Pawel; Paziewski, Jacek; Krypiak-Gregorczyk, Anna; Stepniak, Katarzyna; Bosy, Jaroslaw; Kaplon, Jan; Hadas, Tomasz; Orús Pérez, Raul; Monte Moreno, Enrique; Yang, Heng; Olivares Pulido, Germán; García Rigo, Alberto (2015)
    Conference lecture
    Restricted access - publisher's policy
  • IPRESES. Additional Technical Note #8: Virtual Box and Ciraolo SW (v1.0) 

    García Rigo, Alberto; Hernández Pajares, Manuel; Olivares Pulido, Germán (2015-04-22)
    External research report
    Restricted access - confidentiality agreement
  • IPRESES: TN4 

    Hernández Pajares, Manuel; García Rigo, Alberto; Olivares Pulido, Germán (2014-12-14)
    External research report
    Restricted access - confidentiality agreement
  • IPRESES: TN7 

    Hernández Pajares, Manuel; García Rigo, Alberto; Olivares Pulido, Germán (2014-12-02)
    External research report
    Restricted access - confidentiality agreement
  • Sibsonian and non-Sibsonian natural neighbour interpolation of the total electron content value 

    Kotulak, Kacper; Fron, Adam; Krankowski, Andrzej; Olivares Pulido, Germán; Hernández Pajares, Manuel (2017-03)
    Article
    Open Access
    In radioastronomy the interferometric measurement between radiotelescopes located relatively close to each other helps removing ionospheric effects. Unfortunately, in case of networks such as LOw Frequency ARray (LOFAR), ...
  • Towards an optimal overall description of electron density information gathered during GNSS satellite occultations 

    Olivares Pulido, Germán; Hernández Pajares, Manuel; Limberger, Marco; García Rigo, Alberto; Aragón-Angel, Angela; Schmidt, Michael; Hugentobler, U (2014)
    Conference lecture
    Restricted access - publisher's policy
    The purpose of this work is to characterize the performance of different interpolation methods in order to build a global model of ionospheric free electron density, directly derived from the inversions of GNSS occultation ...