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Comparison of industrial tomography algorithms for gamma scanning 2-D reconstruction
(International Society for Industrial Process Tomography, 2020)
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 ...
Tomographic imaging of ionospheric plasma bubbles based on GNSS and radio occultation measurements
(2018-10-01)
Total electron content measurements given by the global navigation satellite system (GNSS) have successfully presented results to capture the signatures of equatorial plasma bubbles. In contrast, the correct reproduction ...
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 ...
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 ...
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)
Periodic and steady state assessment of microgrids with photovoltaic generation sources in time and frequency domain
(Universidad Michoacana de San Nicolás de Hidalgo, 2018-02)
This thesis presents two fast and accurate methodologies for the assessment of the dynamic and periodic steady state operation of microgrids with photovoltaic energy sources in time and harmonic domain. The topology of the ...