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Ionospheric tomography using GNSS: multiplicative algebraic reconstruction technique applied to the area of Brazil
(2016-10-01)
Experimental analysis was performed using multiplicative algebraic reconstruction technique (MART) to map the ionosphere over Brazil. Code and phase observations from the global navigation satellite system (GNSS) together ...
A New Method for Ionospheric Tomography and Its Assessment by Ionosonde Electron Density, GPS TEC, and Single-Frequency PPP
(Ieee-inst Electrical Electronics Engineers Inc, 2019-05-01)
A new tomographic method was developed with the main goal of mapping the ionosphere in the region of Brazil. The ionospheric background was estimated based on ionosonde and radio-occultation measurements to overcome the ...
Comparison of industrial tomography algorithms for gamma scanning 2-D reconstruction
(International Society for Industrial Process Tomography, 2020)
Numerical simulations to assess ART and MART performance for ionospheric tomography of chapman profiles
(2017-07-01)
The incomplete geometrical coverage of the Global Navigation Satellite System (GNSS) makes the ionospheric tomographic system an ill-conditioned problem for ionospheric imaging. In order to detect the principal limitations ...
Overview of a New Reconstruction Method to Map the Ionosphere at the Brazilian Region
(Inst Navigation, 2018-01-01)
Three-dimensional ionospheric reconstruction at the Brazilian area has been a continuous challenge due to the high ionospheric variability and lack of data in the region. Many efforts have been conducted to overcome these ...
Overview of a new reconstruction method to map the ionosphere at the Brazilian region
(2018-01-01)
Three-dimensional ionospheric reconstruction at the Brazilian area has been a continuous challenge due to the high ionospheric variability and lack of data in the region. Many efforts have been conducted to overcome these ...
Tomografia gama computadorizada e simulações com MCNPX aplicados para estudo da solda
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Tecnologias Energeticas e Nuclear, 2018)