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Mostrando ítems 41-50 de 65
Performance analysis of global and regional ionosphere maps for generation of virtual reference stationAnálise da performance dos mapas globais e regionais da ionosfera para geração de estação de referência virtual
(2020-01-01)
An important tendency in recent years has been the use of the Real Time Kinematic (RTK) method, due to centimeter accuracy and productivity. However, the RTK is restricted to applications with a baseline below 20 km. To ...
Correlação do posicionamento por ponto GNSS com a ionosfera e com indices de atividade solar no periodo de 2002 a 2011
(Universidade Federal do Paraná, 2014-12-01)
This paper aims at analyzing the error in GNSS point positioning in the Brazilian region over a period of 10 years (January/2002 - December/2011) and comparing the results with the solar and ionospheric activity in the ...
análise dos efeitos ionosféricos de ordem superior no ciclo solar 24 e influência no posicionamento GNSS absoluto
(Universidade Federal do Paraná, 2014-12-01)
The application of the ionosphere free combination for GNSS dual frequency data allows mathematically the elimination of the first order ionosphere effects. However, the higher order ionosphere effects are not eliminated ...
Resolução espacial da Grade Ionosférica e do Give
(Universidade Federal de Uberlândia (UFU), 2012-09-01)
O estado da arte na modelagem da ionosfera está em desenvolver e/ou aprimorar métodos capazes de fornecer aos usuários do GNSS correções ionosféricas confiáveis, em tempo real e utilizando estruturas simples de transmissão ...
Simulation of decametric wave propagation in the ionospheric plasmaSimulación de propagación decamétrica de ondas en el plasma ionosférico
(2013-04-04)
The decametric radiowaves propagation in the ionospheric plasmawas considered. Bicharacteristic system of equations was used in themodeling ray structures. This system, which allows finding the raypaths with great precision, ...
ON THE SOURCES OF THE NIGHT SIDE IONOSPHERE OF VENUSON THE SOURCES OF THE NIGHT SIDE IONOSPHERE OF VENUS
(Instituto de Geofísica, 2012)
Planetary magnetospheres.Planetary magnetospheres.
(Instituto de Geofísica, 2013)