Search Results - "Camargo, Paulo de Oliveira"
-
1
Contribution to the Establishment of the IHRF in the State of São Paulo
Published in IEEE geoscience and remote sensing letters (2022)“…This letter describes a practical computation to determine the potential values, following the International Association of Geodesy (IAG) recommendations, at…”
Get full text
Journal Article -
2
Tomographic Imaging of Ionospheric Plasma Bubbles Based on GNSS and Radio Occultation Measurements
Published in Remote sensing (Basel, Switzerland) (01-10-2018)“…Total electron content measurements given by the global navigation satellite system (GNSS) have successfully presented results to capture the signatures of…”
Get full text
Journal Article Publication -
3
A New Method for Ionospheric Tomography and Its Assessment by Ionosonde Electron Density, GPS TEC, and Single-Frequency PPP
Published in IEEE transactions on geoscience and remote sensing (01-05-2019)“…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…”
Get full text
Journal Article Publication -
4
Spatial and Temporal Features of the Topside Ionospheric Electron Density by a New Model Based On GPS Radio Occultation Data
Published in Journal of geophysical research. Space physics (01-03-2018)“…A new method for probing the spatial and temporal features of the topside ionosphere is presented. The Vary‐Chap model given by linear functions was used to…”
Get full text
Journal Article Publication -
5
Ionospheric tomography using GNSS: multiplicative algebraic reconstruction technique applied to the area of Brazil
Published in GPS solutions (01-10-2016)“…Experimental analysis was performed using multiplicative algebraic reconstruction technique (MART) to map the ionosphere over Brazil. Code and phase…”
Get full text
Journal Article -
6
Linear Vary-Chap Topside Electron Density Model with Topside Sounder and Radio-Occultation Data
Published in Surveys in geophysics (01-03-2019)“…The Linear Vary-Chap function has received increased attention in describing the topside ionosphere due to its good performance for predicting and…”
Get full text
Journal Article -
7
Brazilian active GNSS networks as systems for monitoring the ionosphere
Published in GPS solutions (01-07-2017)“…This research shows the viability of using Global Navigation Satellite System (GNSS) stations from Brazilian active networks in monitoring the ionosphere…”
Get full text
Journal Article -
8
The Impact of Atmospheric Correction on Brazilian Earth Tide Models
Published in Pure and applied geophysics (01-09-2020)“…Terrestrial gravity stations have been in operation for several years throughout Brazil. Minimizing geophysical effects on gravimetric observations is a major…”
Get full text
Journal Article -
9
The GNSS NavAer INCT Project Overview and Main Results
Published in Journal of aerospace technology and management (01-01-2022)“…ABSTRACT Air navigation is increasingly dependent on the use of Global Navigation Satellite Systems (GNSS). It allows the determination of the aircraft’s…”
Get full text
Journal Article -
10
Assessment of a TEC calibration procedure by single-frequency PPP
Published in GPS solutions (01-04-2018)“…Global navigation satellite system (GNSS) measurements have become an outstanding data source for ionospheric studies using total electron content (TEC)…”
Get full text
Journal Article -
11
Stochastic modelling considering ionospheric scintillation effects on GNSS relative and point positioning
Published in Advances in space research (03-05-2010)“…Global Navigation Satellite Systems (GNSS), in particular the Global Positioning System (GPS), have been widely used for high accuracy geodetic positioning…”
Get full text
Journal Article -
12
ANÁLISE MULTIVARIADA APLICADA NO ESTUDO DOS EFEITOS DA IONOSFERA, TROPOSFERA E MULTICAMINHO NOS SINAIS GNSS
Published in Revista brasileira de cartografia (27-04-2016)“…Os sinais GNSS (Global Navigation Satellite System) estão sujeitos a erros sistemáticos causados por diversas fontes, sendo as principais a camada ionosférica,…”
Get full text
Journal Article -
13
ANÁLISE GLOBAL DOS EFEITOS PROVOCADOS PELA EXPLOSÃO SOLAR DE 28 DE OUTUBRO DE 2003 NO TEC E NO POSICIONAMENTO POR PONTO
Published in Revista brasileira de cartografia (28-02-2013)“…A ionosfera é a principal fonte de erro das observáveis GNSS. Esse erro é diretamente proporcional ao TEC presente ao longo da trajetória percorrida pelo sinal…”
Get full text
Journal Article -
14
DEVELOPMENT OF A LOW-COST MOBILE MAPPING SYSTEM: A SOUTH AMERICAN EXPERIENCE
Published in Photogrammetric record (01-03-2003)“…This paper presents the prototype of a low‐cost terrestrial mobile mapping system (MMS) composed of a van, two digital video cameras, two GPS receivers, a…”
Get full text
Journal Article -
15
CÁLCULO DO TEC USANDO DADOS DE RECEPTORES GPS DE DUPLA FREQUENCIA PARA A PRODUÇÃO DE MAPAS DA IONOSFERA PARA A REGIÃO BRASILEIRA
Published in Revista brasileira de cartografia (13-11-2009)“…Atualmente, um dos principais fatores que limita a acurácia do posicionamento com receptores GPS é o atraso devido à ionosfera. O erro associado à ionosfera é…”
Get full text
Journal Article -
16
INFLUÊNCIA DA VARIAÇÃO ESPACIAL DO TEC NA DEFINIÇÃO DO COMPRIMENTO DE LINHA DE BASE: ABORDAGEM TEÓRICA E PRÁTICA
Published in Revista brasileira de cartografia (22-09-2009)“…Um dos principais problemas no posicionamento relativo com GNSS é a variação espacial do Conteúdo Total de Elétrons (TEC), que representa o número de elétrons…”
Get full text
Journal Article -
17
Radargrammetric approaches to the flat relief of the amazon coast using COSMO-SkyMed and TerraSAR-X datasets
Published in ISPRS journal of photogrammetry and remote sensing (01-11-2018)“…[Display omitted] The Amazonian coast consists of extensive flood plains and plateaus characterized by a high discharge of water and sediment from the Amazon…”
Get full text
Journal Article -
18
Aplicações do GPS em Fotogrametria
Published in Revista brasileira de cartografia (01-01-2020)Get full text
Journal Article -
19
The geometric and cartographic characteristics of the ZY-3 images and their usage in the production of cartographic data and GIS applications in Brazil
Published in 2014 Third International Workshop on Earth Observation and Remote Sensing Applications (EORSA) (01-06-2014)“…The Chinese SASMAC operated satellite Zi-Yuan-3 (ZY-3), represents a new generation of satellites equipped with high-resolution sensors, which ensures data…”
Get full text
Conference Proceeding -
20
The GNSS NavAer INCT Project Overview and Main Results
Published in Journal of aerospace technology and management (01-04-2022)“…Air navigation is increasingly dependent on the use of Global Navigation Satellite Systems (GNSS). It allows the determination of the aircraft’s position in…”
Get full text
Journal Article