Results 21 to 30 of about 2,679 (211)
Space weather challenges of the polar cap ionosphere [PDF]
, 2016 This paper presents research on polar cap ionosphere space weather phenomena conducted during the European Cooperation in Science and Technology (COST) action ES0803 from 2008 to 2012.
Alfonsi, Lucilla +5 more
core +4 more sources
Space Weather, 2020 Global Navigation Satellite System (GNSS) signals strongly depend on the ionospheric conditions, which are composed of electrons and ions generated by solar radiation and particle precipitation.
Junseok Hong +7 more
doaj +1 more source
Geodesy and Geodynamics, 2019 The amplitude and phase of L-band satellite signals are fluctuated randomly due to small scale electron density irregularity structures in the ionosphere which result in fleeting variations, known as ‘ionospheric scintillations’.
K. Sahithi +6 more
doaj +1 more source
Analysis of Ionospheric Scintillations using Wideband GPS L1 C/A Signal Data [PDF]
, 2004 A non-real-time GPS receiver has been developed and tested for use in scintillation analysis. The receiver consists of a digital storage receiver and non-real-time software acquisition and tracking algorithms.
Humphreys, Todd E. +3 more
core +1 more source
The role of post-sunset vertical drifts at the equator in predicting the onset of VHF scintillations during high and low sunspot activity years [PDF]
Annales Geophysicae, 2006 The day-to-day variability in the occurrence of ionospheric scintillations, which are of serious concern in the trans-ionospheric communications, makes their prediction still a challenging problem.
S. Tulasi Ram +6 more
doaj +1 more source
A different approach to the analysis of GPS scintillation data
Annals of Geophysics, 2002 Amplitude scintillation data from GPS were analyzed. The objective is to estimate the impact of ionospheric scintillations at Satellite Based Augmentation Systems Ranging and Integrity Monitoring Station (SBAS RIMS) level and at GPS user level.
R. G. Ezquer, B. Forte, S. M. Radicella
doaj +1 more source
Climatology and modeling of ionospheric scintillations and irregularity zonal drifts at the equatorial anomaly crest region [PDF]
Annales Geophysicae, 2017 In this study the climatology of ionospheric scintillations and the zonal drift velocities of scintillation-producing irregularities are depicted for a station located under the southern crest of the equatorial ionization anomaly.
M. T. A. H. Muella +6 more
doaj +1 more source
Feasibility of precise navigation in high and low latitude regions under scintillation conditions [PDF]
, 2018 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.
Altadill, David +9 more
core +3 more sources
Ionospheric scintillation monitoring and modelling [PDF]
Annals of Geophysics, 2009 This paper presents a review of the ionospheric scintillation monitoring and modelling by the European groups involved in COST 296. Several of these groups have organized scintillation measurement campaigns at low and high latitudes. Some characteristic results obtained from the measured data are presented.
Beniguel, Y. +20 more
openaire +7 more sources
Annals of Geophysics, 2013 In recent years, several groups have installed high-frequency sampling receivers in the southern middle and high latitude regions, to monitor ionospheric scintillations and the total electron content (TEC) changes.
Luca Spogli +8 more
doaj +1 more source