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GENERATION AND PERFORMANCE ANALYSIS OF GPS AND GLONASS VIRTUAL DATA FOR POSITIONING UNDER DIFFERENT IONOSPHERIC CONDITIONS
(Universidade Federal do Paraná, 2019)
Abstract Several approaches concerning the use in positioning of GNSS (Global Navigation Satellite Systems) can be considered: systems, applied methods and errors that can affect the signals. Following the GLONASS (GLObal ...
Visual analytics of time-varying multivariate ionospheric scintillation data
(2017-11-01)
We present a clustering-based interactive approach to multivariate data analysis, motivated by the specific needs of scintillation data. Ionospheric scintillation is a rapid variation in the amplitude and/or phase of radio ...
Diagnostics of equatorial and low latitude ionosphere by TEC mapping over Brazil
(Elsevier B.V., 2014-08-01)
The total electron content (TEC) in the equatorial and low-latitude ionosphere over Brazil was monitored in two dimensions by using 2011 data from the ground-based global navigation satellite system (GNSS) receiver network ...
EVALUATION OF ACCELERATION OF ATMOSPHERIC ELECTRONS DUE TO HIGH POWER HF TRANSMISSION TO EARTH IONOSPHERE
(Universidad de TarapacáFacultad de Ingeniería, 2006)
Some ionospheric storm effects at equatorial and low latitudes
(Elsevier, 2014-04)
In this paper, the response of the equatorial and low latitude ionosphere to three intense geomagnetic storms occurred in 2002 and 2003 is reported. For that, critical frequency of F2-layer foF2 and the peak height hmF2 ...
Assessment of a TEC calibration procedure by single-frequency PPP
(2018-04-01)
Global navigation satellite system (GNSS) measurements have become an outstanding data source for ionospheric studies using total electron content (TEC) estimation procedures. Many methods for TEC estimation had been ...
Estudo comparativo de métodos para calcular pontos ionosféricos e descrever o trajeto do sinal GNSS
(2017-01-01)
Many efforts have been done in the last decades to improve the formulation of ionospheric models based on data derived from the Global Navigation Satellite System (GNSS). Despite significant improvements in estimating the ...