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Acurácia do posicionamento absoluto GPS com correção da ionosfera advinda de mapas ionosféricos globais e regionais
(2015-01-01)
The effect caused by the ionosphere in the GPS signal is one of the most important in the geodetic coordinate estimation process, mainly for data collected by single frequency receivers, if a not consistent ionospheric ...
Desempenho do modelo global da ionosfera do IGS: Avaliação no posicionamento por ponto na região sul do Brasil em período de alta atividade solar
(2009-08-04)
One of the main drawbacks of the GPS accuracy for L1 users is the error due to ionosphere. This error depends on the total electron content presents in the ionosphere, as well as of the carrier frequency. Some models have ...
Análise e comparação do comportamento da ionosfera e do posicionamento por ponto em períodos de alta e baixa atividade solar
(2009-10-21)
The ionosphere is a major source of systematic error in the GPS observables. As this error is directly proportional to the TEC (Total Electron Content), the quality of GPS positioning (especially with single frequency ...
Estimativa e análise de índices de irregularidades da ionosfera utilizando dados GPS de redes ativas
(2013-09-19)
Observable GNSS (Global Navigation Satellite System) are affected by systematic errors due to free electrons present in the ionosphere. The error associated with the ionosphere depends on the Total Electron Content (TEC), ...
Quality of STORM model predictions for a mid-latitude stationQuality of STORM model predictions for a mid-latitude station
(Instituto de Geofísica, 2012)