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GNSS technology for supporting air navigation

Grant number: 17/50115-0
Support Opportunities:Research Grants - Research in Public Policies
Duration: July 01, 2017 - June 30, 2025
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geodesy
Convênio/Acordo: CNPq - INCTs
Principal Investigator:Joao Francisco Galera Monico
Grantee:Joao Francisco Galera Monico
Host Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil
Partner institutions: Ministério da Ciência, Tecnologia e Inovação (Brasil). Instituto Nacional de Pesquisas Espaciais (INPE)
Pesquisadores principais:
Eurico Rodrigues de Paula
Associated scholarship(s):23/01687-1 - GNSS Technology to Support air navigation, BP.TT
23/06887-9 - GNSS technology in support of Air Navigation TT II Work Plan (IFSP) High rate data analysis under incidence of strong flickers, BP.TT
23/03987-2 - GNSS Technology to support air navigation, BP.TT
+ associated scholarships 21/12377-8 - Initial investigations for building a prototype GBAS operating with multi constellation and GNSS multifrequency, BP.IC
21/08962-2 - GBAS performance assessment in Brazil using GNSS Multifrequency and Multi Constellation (MFMC), BP.PD
20/11883-4 - GNSS technology to support air navigation, BP.TT
19/27866-4 - GNSS technology in support of air navigation, BP.TT
19/03679-0 - GNSS technology to support air navigation, BP.TT
19/06000-9 - GNSS technology to support air navigation, BP.IC
18/23754-4 - GNSS technology in support of air navigation, BP.TT
18/00783-9 - Assessment of smartphones for applications of satellite positioning and ionosphere monitoring, BP.TT
17/23114-2 - Support for data processing and maintenance activities for GNSS receivers and IT equipment at INCT, BP.TT - associated scholarships

Abstract

The use of satellite positioning systems (GNSS) for aerial navigation constitutes a worldwide tendency in present days and, in the future, it will be the main technology adopted for determination of airplanes positioning in all flight phases. The application of this kind of technology has numerous benefits such as considerably reduced need of ground equipment installation, optimization of aerial space with routes, and reduction in flight duration and its consequent fuel saving, to mention a few. In this context, it can be highlighted the GBAS (Ground-Based Augmentation System), which uses GNSS systems, especially the American Global Positioning System (GPS), transmitting the corrections to improve the accuracy in determining the aircraft's position aiming at guiding it for a precise landing. However, GPS signals, as well as those ones of any other satellite positioning system, suffer influences from ionospheric layer strongly, with introduction of errors that might affect accuracy, integrity, and availability and continuity requirements postulated by International Civil Aviation Organization (ICAO). The ionospheric layer presents distinct behaviors according to location (mainly with latitude variation), hour of the day, period of the year and solar activity cycle, which period is of eleven years. The ionosphere over Brazilian territory, especially on those regions of equatorial ionization anomaly occurrence, presents singular features in comparison with other parts of the planet, due to concentration of phenomena and anomalies occurring there, making satellite positioning systems performance worse when compared to regions such as United States and Europe, for instance. (AU)

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Scientific publications (54)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RODRIGO GENTIL RODRIGUES; JONAS BIANCHINI FULINDI; DIOGO BERTOLINI PROFETA DE OLIVEIRA; ALISON DE OLIVEIRA MORAES; LEONARDO MARINI-PEREIRA. Safety Analysis of GNSS Parallel Runway Approach Operation at Guarulhos International Airport. J. Aerosp. Technol. Manag., v. 14, . (17/50115-0)
SANTOS, ANGELA M.; BRUM, CHRISTIANO G. M.; BATISTA, INEZ S.; SOBRAL, JOSE H. A.; ABDU, MANGALATHAYIL A.; SOUZA, JONAS R.. Responses of intermediate layers to geomagnetic activity during the 2009 deep solar minimum over the Brazilian low-latitude sector. Annales Geophysicae, v. 40, n. 3, p. 11-pg., . (17/50115-0, 15/25357-4)
SOUSASANTOS, JONAS; MORAES, ALISON DE OLIVEIRA; SOBRAL, JOSE H. A.; MUELLA, MARCIO T. A. H.; DE PAULA, EURICO R.; PAOLINI, RAFAEL S.. Climatology of the scintillation onset over southern Brazil. Annales Geophysicae, v. 36, n. 2, p. 565-576, . (17/50115-0)
SANTOS, A. M.; BATISTA, I. S.; SOBRAL, J. H. A.; BRUM, C. G. M.; ABDU, M. A.; SOUZA, J. R.. Some Differences in the Dynamics of the Intermediate Descending Layers Observed During Periods of Maximum and Minimum Solar Flux. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 10, . (15/25357-4, 17/50115-0)
SANTOS, A. M.; BRUM, C. G. M.; BATISTA, I. S.; SOBRAL, J. H. A.; ABDU, M. A.; SOUZA, J. R.; CHEN, S. S.; DENARDINI, C. M.; DE JESUS, R.; VENKATESH, K.; et al. Anomalous Responses of the F-2 Layer Over the Brazilian Equatorial Sector During a Counter Electrojet Event: A Case Study. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 127, n. 9, p. 12-pg., . (17/50115-0)
SPOGLI, L.; ALFONSI, L.; CESARONI, C.. Stepping Into an Equatorial Plasma Bubble With a Swarm Overfly. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 21, n. 5, p. 13-pg., . (17/50115-0)
DE JESUS, R.; BATISTA, I. S.; TAKAHASHI, H.; DE PAULA, E. R.; BARROS, D.; FIGUEIREDO, C. A. O. B.; DE ABREU, A. J.; JONAH, O. F.; FAGUNDES, P. R.; VENKATESH, K.. Morphological Features of Ionospheric Scintillations During High Solar Activity Using GPS Observations Over the South American Sector. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 3, . (17/50115-0, 18/09066-8)
MARTINEZ-LEDESMA, M.; BRAVO, M.; URRA, B.; SOUZA, J.; FOPPIANO, A.. Prediction of the Ionospheric Response to the 14 December 2020 Total Solar Eclipse Using SUPIM-INPE. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 11, . (17/50115-0)
ANA LUCIA CHRISTOVAM DE SOUZA; GABRIEL OLIVEIRA JEREZ; PAULO DE OLIVEIRA CAMARGO; DANIELE BARROCA MARRA ALVES. Assessment of GPS positioning performance using different signals in the context of ionospheric scintillation: a month-long case study on São José dos Campos, Brazil. Bol. Ciênc. Geod., v. 28, n. 4, . (21/05285-0, 17/50115-0)
KLIPP, TELMO DOS SANTOS; PETRY, ADRIANO; DE SOUZA, JONAS RODRIGUES; DE PAULA, EURICO RODRIGUES; FALCAO, GABRIEL SANDIM; DE CAMPOS VELHO, HAROLDO FRAGA. Ionosonde total electron content evaluation using International Global Navigation Satellite System Service data. Annales Geophysicae, v. 38, n. 2, p. 347-357, . (17/50115-0)
DE OLIVEIRA, CESAR BUCHILE ABUD; ESPEJO, TEDDY MODESTO SURCO; MORAES, ALISON; COSTA, EMANOEL; SOUSASANTOS, JONAS; LOURENCO, LUIS FELIPE DIAS; ABDU, MANGALATHAYIL ALI. Analysis of Plasma Bubble Signatures in Total Electron Content Maps of the Low-Latitude Ionosphere: A Simplified Methodology. SURVEYS IN GEOPHYSICS, v. 41, n. 4, . (17/50115-0, 06/04008-2, 18/06158-9)
DE PAULA, E. R.; MARTINON, A. R. F.; MORAES, A. O.; CARRANO, C.; NETO, A. C.; DOHERTY, P.; GROVES, K.; VALLADARES, C. E.; CROWLEY, G.; AZEEM, I; et al. Performance of 6 Different Global Navigation Satellite System Receivers at Low Latitude Under Moderate and Strong Scintillation. EARTH AND SPACE SCIENCE, v. 8, n. 2, . (18/23754-4, 17/50115-0)
LIU, HANG; REN, XIAODONG; ZHANG, XIAOHONG; MEI, DENGKUI; YANG, PENGXIN. Investigating the Effects of Ionospheric Scintillation on Multi-Frequency BDS-2/BDS-3 Signals at Low Latitudes. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 21, n. 6, p. 17-pg., . (17/50115-0)
SOUSASANTOS, J.; AFFONSO, B. J.; MORAES, A.; RODRIGUES, F. S.; ABDU, M. A.; SALLES, L. A.; VANI, B. C.. Amplitude Scintillation Severity and Fading Profiles Under Alignment Between GPS Propagation Paths and Equatorial Plasma Bubbles. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 20, n. 11, p. 15-pg., . (16/24970-7, 17/50115-0, 18/06158-9, 06/04008-2)
GALERA MONICO, JOAO FRANCISCO; DE PAULA, EURICO RODRIGUES; MORAES, ALISON DE OLIVEIRA; COSTA, EMANOEL; SHIMABUKURO, MILTON HIROKAZU; MARRA ALVES, DANIELE BARROCA; DE SOUZA, JONAS RODRIGUES; CAMARGO, PAULO DE OLIVEIRA; PROL, FABRICIO DOS SANTOS; VANI, BRUNO CESAR; et al. The GNSS NavAer INCT Project Overview and Main Results. JOURNAL OF AEROSPACE TECHNOLOGY AND MANAGEMENT, v. 14, p. 23-pg., . (17/50115-0)
CHRISTOVAM, ANA L.; PROL, FABRICIO S.; HERNANDEZ-PAJARES, MANUEL; CAMARGO, PAULO O.. Plasma bubble imaging by single-frequency GNSS measurements. GPS SOLUTIONS, v. 27, n. 3, p. 14-pg., . (17/50115-0)
LOPES, RAFAEL A. M.; ANTREICH, FELIX; FOHLMEISTER, FRIEDERIKE; KRIEGEL, MARTIN; KUGA, HELIO K.. Linear time-invariant filtering for real-time monitoring of ionospheric scintillation in GNSS receivers. GPS SOLUTIONS, v. 27, n. 3, p. 14-pg., . (17/50115-0)
DE PAULA, EURICO R.; MARTINON, ANDRE R. F.; CARRANO, CHARLES; MORAES, ALISON O.; NERI, JOSE A. C. F.; CECATTO, JOSE R.; ABDU, MANGALATHAYIL A.; NETO, ACACIO C.; MONICO, JOAO F. G.; SILVA, WEVERTON DA COSTA; et al. Solar Flare and Radio Burst Effects on GNSS Signals and the Ionosphere During September 2017. RADIO SCIENCE, v. 57, n. 10, p. 15-pg., . (17/50115-0, 18/23754-4)
JOÃO FRANCISCO GALERA MONICO; EURICO RODRIGUES DE PAULA; ALISON DE OLIVEIRA MORAES; EMANOEL COSTA; MILTON HIROKAZU SHIMABUKURO; DANIELE BARROCA MARRA ALVES; JONAS RODRIGUES DE SOUZA; PAULO DE OLIVEIRA CAMARGO; FABRICIO DOS SANTOS PROL; BRUNO CÉSAR VANI; et al. The GNSS NavAer INCT Project Overview and Main Results. J. Aerosp. Technol. Manag., v. 14, . (17/50115-0)
VINÍCIUS AMADEU STUANI PEREIRA; JOÃO FRANCISCO GALERA MONICO; PAULO DE OLIVEIRA CAMARGO. Estimativa e análise de níveis de proteção para aproximação precisa no aeroporto internacional do Rio de Janeiro utilizando σ VIG em tempo real para cada satélite GPS e GLONASS. Bol. Ciênc. Geod., v. 27, . (17/50115-0, 15/20522-7)
EURICO RODRIGUES DE PAULA; JOÃO FRANCISCO GALERA MONICO; ÍTALO HIROKAZU TSUCHIYA; CESAR ENRIQUE VALLADARES; SÔNIA MARIA ALVES COSTA; LEONARDO MARINI-PEREIRA; BRUNO CÉSAR VANI; ALISON DE OLIVEIRA MORAES. A Retrospective of Global Navigation Satellite System Ionospheric Irregularities Monitoring Networks in Brazil. J. Aerosp. Technol. Manag., v. 15, . (17/50115-0, 06/04008-2)
MORAES, ALISON DE O.; VANI, BRUNO C.; COSTA, EMANOEL; SOUSASANTOS, JONAS; ABDU, MANGALATHAYIL A.; RODRIGUES, FABIANO; GLADEK, YURI C.; DE OLIVEIRA, CESAR B. A.; GALERA MONICO, JOAO F.. Ionospheric Scintillation Fading Coefficients for the GPS L1, L2, and L5 Frequencies. RADIO SCIENCE, v. 53, n. 9, p. 1165-1174, . (17/50115-0, 06/04008-2)
MORAES, ALISON DE O.; VANI, BRUNO C.; COSTA, EMANOEL; ABDU, MANGALATHAYIL A.; DE PAULA, EURICO R.; SOUSASANTOS, JONAS; MONICO, JOAO F. G.; FORTE, BIAGIO; DE SIQUEIRA NEGRETI, PATRICIA MARA; SHIMABUKURO, MILTON HIROKAZU. GPS availability and positioning issues when the signal paths are aligned with ionospheric plasma bubbles. GPS SOLUTIONS, v. 22, n. 4, . (06/04008-2, 17/50115-0)
MARTINON, ANDRE R. F.; STEPHANY, STEPHAN; DE PAULA, EURICO R.. A new approach for the generation of real-time GNSS low-latitude ionospheric scintillation maps. JOURNAL OF SPACE WEATHER AND SPACE CLIMATE, v. 13, p. 17-pg., . (17/50115-0)
SILVA, WEVERTON DA COSTA; GALERA MONICO, JOAO FRANCISCO. GBAS: fundamentals and availability analysis according to sigma(vig). JOURNAL OF GEODETIC SCIENCE, v. 12, n. 1, p. 16-pg., . (17/50115-0)
SOUZA, ANA L. C.; CAMARGO, PAULO O.; MUELLA, MARCIO T. A. H.; TARDELLI-COELHO, FLAVIA. Drift Velocity Estimation of Ionospheric Bubbles Using GNSS Observations. RADIO SCIENCE, v. 56, n. 8, . (17/50115-0)
BRAVO, M. A.; BATISTA, I. S.; SOUZA, J. R.; FOPPIANO, A. J.. Ionospheric Response to Disturbed Winds During the 29 October 2003 Geomagnetic Storm in the Brazilian Sector. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 124, n. 11, . (17/50115-0)
SILVA, R. P.; SOUZA, J. R.; SOBRAL, J. H. A.; DENARDINI, C. M.; BORBA, G. L.; SANTOS, M. A. F.. Ionospheric Plasma Bubble Zonal Drift Derived From Total Electron Content Measurements. RADIO SCIENCE, v. 54, n. 7, p. 580-589, . (12/08445-9, 17/50115-0)
SALLES, LUCAS A.; MORAES, ALISON; VANI, BRUNO; SOUSASANTOS, JONAS; AFFONSO, BRUNO J.; MONICO, JOAO F. GALERA. A deep fading assessment of the modernized L2C and L5 signals for low-latitude regions. GPS SOLUTIONS, v. 25, n. 3, . (18/06158-9, 17/50115-0)
PORTELLA, IGOR PONTE; MORAES, ALISON; DA SILVA PINHO, MARCELO; SOUSASANTOS, JONAS; RODRIGUES, FABIANO. Examining the Tolerance of GNSS Receiver Phase Tracking Loop Under the Effects of Severe Ionospheric Scintillation Conditions Based on Its Bandwidth. RADIO SCIENCE, v. 56, n. 6, . (17/50115-0, 18/06158-9)
MARINI-PEREIRA, L.; LOURENCO, L. F. D.; SOUSASANTOS, J.; MORAES, A. O.; PULLEN, S.. Regional Ionospheric Delay Mapping for Low-Latitude Environments. RADIO SCIENCE, v. 55, n. 12, . (17/50115-0, 18/06158-9)
BRAVO, M.; MARTINEZ-LEDESMA, M.; FOPPIANO, A.; URRA, B.; OVALLE, E.; VILLALOBOS, C.; SOUZA, J.; CARRASCO, E.; MUNOZ, P. R.; TAMBLAY, L.; et al. First Report of an Eclipse From Chilean Ionosonde Observations: Comparison With Total Electron Content Estimations and the Modeled Maximum Electron Concentration and Its Height. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 9, . (17/50115-0)
AFFONSO, BRUNO JACOBINI; MORAES, ALISON; SOUSASANTOS, JONAS; MARINI-PEREIRA, LEONARDO; PULLEN, SAM. Strong Ionospheric Spatial Gradient Events Induced by Signal Propagation Paths Aligned With Equatorial Plasma Bubbles. IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, v. 58, n. 4, p. 12-pg., . (18/06158-9, 06/04008-2, 17/50115-0)
SALLES, LUCAS A.; VANI, BRUNO C.; MORAES, ALISON; COSTA, EMANOEL; DE PAULA, EURICO R.. Investigating Ionospheric Scintillation Effects on Multifrequency GPS Signals. SURVEYS IN GEOPHYSICS, v. 42, n. 4, p. 999-1025, . (06/04008-2, 17/50115-0)
CHRISTOVAM, ANA L.; PROL, FABRICIO S.; JEREZ, GABRIEL O.; HERNANDEZ-PAJARES, MANUEL; CAMARGO, PAULO O.. PPP at Low Latitudes With Ionospheric Model Exclusively Based on Single Frequency GNSS Measurements. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 21, n. 8, p. 13-pg., . (17/50115-0, 21/05285-0)
SANCHEZ, S. A.; KHERANI, E. A.; ASTAFYEVA, E.; DE PAULA, E. R.. Rapid Detection of Co-Seismic Ionospheric Disturbances Associated With the 2015 Illapel, the 2014 Iquique and the 2011 Sanriku-Oki Earthquakes. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 128, n. 9, p. 15-pg., . (17/50115-0, 23/07807-9, 22/03502-6)
SOUSASANTOS, J.; ABDU, M. A.; MORAES, A. O.; VANI, B. C.; SILVA, R. P.; SOBRAL, J. H. A.. Long-lasting stagnant equatorial plasma bubble event and the related scintillation over the Brazilian region. Advances in Space Research, v. 68, n. 11, p. 4678-4690, . (17/50115-0, 16/24970-7, 18/06158-9)
SETTI JUNIOR, PAULO DE TARSO; AQUINO, MARCIO; VEETTIL, SREEJA VADAKKE; MARRA ALVES, DANIELE BARROCA; DA SILVA, CRISLAINE MENEZES. Seasonal analysis of Klobuchar and NeQuick G single-frequency ionospheric models performance in 2018. Advances in Space Research, v. 68, n. 12, p. 4824-4833, . (17/50115-0, 16/24861-3)
RODRIGUES, RODRIGO GENTIL; FULINDI, JONAS BIANCHINI; PROFETA DE OLIVEIRA, DIOGO BERTOLINI; MORAES, ALISON DE OLIVEIRA; MARINI-PEREIRA, LEONARDO. Safety Analysis of GNSS Parallel Runway Approach Operation at Guarulhos International Airport. JOURNAL OF AEROSPACE TECHNOLOGY AND MANAGEMENT, v. 14, p. 12-pg., . (17/50115-0)
JEREZ, GABRIEL O.; HERNANDEZ-PAJARES, MANUEL; GOSS, ANDREAS; PROL, FABRICIO S.; ALVES, DANIELE B. M.; MONICO, JOAO F. G.; SCHMIDT, MICHAEL. Two-Way Assessment of Ionospheric Maps Performance Over the Brazilian Region: Global Versus Regional Products. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 21, n. 2, p. 14-pg., . (17/50115-0, 21/05285-0)
KLIPP, TELMO DOS SANTOS; PETRY, ADRIANO; DE SOUZA, JONAS RODRIGUES; FALCAO, GABRIEL SANDIM; DE CAMPOS VELHO, HAROLDO FRAGA; DE PAULA, EURICO RODRIGUES; ANTREICH, FELIX; HOQUE, MAINUL; KRIEGEL, MARTIN; BERDERMANN, JENS; et al. Evaluation of ionospheric models for Central and South Americas. Advances in Space Research, v. 64, n. 10, p. 2125-2136, . (17/50115-0)
ESPEJO, TEDDY MODESTO SURCO; COSTA, EMANOEL; DE PAULA, EURICO RODRIGUES; MORAES, ALISON DE OLIVEIRA; MONICO, JOAO FRANCISCO GALERA. Variability of Vertical Total Electron Content Gradients in the Brazilian Sector. IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, v. 59, n. 3, p. 15-pg., . (17/50115-0)
COSTA, EMANOEL; DE O. MORAES, ALISON; RODRIGUES DE PAULA, EURICO; MONICO, JOAO FRANCISCO GALERA. Space Diversity Mitigation Effects on Ionospheric Amplitude Scintillation With Basis on the Analysis of GNSS Experimental Data. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v. 71, n. 7, p. 9-pg., . (17/50115-0)
JEREZ, GABRIEL O.; HERNANDEZ-PAJARES, MANUEL; GOSS, ANDREAS; DA SILVA, CRISLAINE MENEZES; ALVES, DANIELE B. M.; MONICO, JOAO F. G.. Impact and synergies of GIM error estimates on the VTEC interpolation and single-frequency PPP at low latitude region. GPS SOLUTIONS, v. 26, n. 2, . (17/50115-0, 21/05285-0)
LI, CHENDONG; HANCOCK, CRAIG M.; VEETTIL, SREEJA VADAKKE; ZHAO, DONGSHENG; MONICO, JOAO F. GALERA; HAMM, NICHOLAS A. S.. Distinguishing ionospheric scintillation from multipath in GNSS signals using geodetic receivers. GPS SOLUTIONS, v. 26, n. 4, p. 13-pg., . (17/50115-0, 06/04008-2)
SANTOS, ANGELA M.; BRUM, CHRISTIANO G. M.; BATISTA, INEZ S.; SOBRAL, JOSE H. A.; ABDU, MANGALATHAYIL A.; SOUZA, JONAS R.; DE JESUS, RODOLFO; MANOHARAN, PERIASAMY K.; TERRA, PEDRINA. Ionospheric Variability over the Brazilian Equatorial Region during the Minima Solar Cycles 1996 and 2009: Comparison between Observational Data and the IRI Model. ATMOSPHERE, v. 14, n. 1, p. 16-pg., . (17/50115-0)
DE PAULA, EURICO RODRIGUES; MONICO, JOAO FRANCISCO GALERA; TSUCHIYA, ITALO HIROKAZU; VALLADARES, CESAR ENRIQUE; COSTA, SONIA MARIA ALVES; MARINI-PEREIRA, LEONARDO; VANI, BRUNO CESAR; MORAES, ALISON DE OLIVEIRA. A Retrospective of Global Navigation Satellite System Ionospheric Irregularities Monitoring Networks in Brazil. JOURNAL OF AEROSPACE TECHNOLOGY AND MANAGEMENT, v. 15, p. 17-pg., . (06/04008-2, 17/50115-0, 06/04008-2)
SANTOS, A. M.; BATISTA, I. S.; BRUM, C. G. M.; SOBRAL, J. H. A.; ABDU, M. A.; SOUZA, J. R.. F Region Electric Field Effects on the Intermediate Layer Dynamics During the Evening Prereversal Enhancement at Equatorial Region Over Brazil. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 126, n. 3, . (15/25357-4, 17/50115-0)
SOUSASANTOS, J.; ABDU, M. A.; DE PAULA, E. R.; MORAES, A. O.; SALLES, L. A.; AFFONSO, B. J.. Conjugated asymmetry of the onset and magnitude of GPS scintillation driven by the vertical plasma drift. GPS SOLUTIONS, v. 26, n. 3, p. 13-pg., . (17/50115-0, 18/06158-9, 16/24970-7)
SURCO ESPEJO, TEDDY MODESTO; COSTA, EMANOEL; MORAES, ALISON O.; FAZANARO MARTINON, ANDRE RICARDO; DE PAULA, EURICO RODRIGUES; GALERA MONICO, JOAO FRANCISCO. A GPS signal-in-space simulation model for equatorial and low latitudes in the Brazilian longitude sector. GPS SOLUTIONS, v. 26, n. 3, p. 13-pg., . (17/50115-0, 18/23754-4)
STUANI PEREIRA, VINICIUS AMADEU; GALERA MONICO, JOAO FRANCISCO; CAMARGO, PAULO DE OLIVEIRA. ESTIMATION AND ANALYSIS OF PROTECTION LEVELS FOR PRECISE APPROACH AT RIO DE JANEIRO INTERNATIONAL AIRPORT USING REAL TIME sigma(VIG) FOR EACH GPS AND GLONASS SATELLITE. Bol. Ciênc. Geod., v. 27, p. 20-pg., . (17/50115-0)
LIMA FILHO, VICENTE CARVALHO; MORAES, ALISON. Modeling multifrequency GPS multipath fading in land vehicle environments. GPS SOLUTIONS, v. 25, n. 1, p. 14-pg., . (17/50115-0)
CHINGARANDI, F. S.; CANDIDO, C. M. N.; BECKER-GUEDES, F.; JONAH, O. F.; MORAES-SANTOS, S. P.; KLAUSNER, V.; TAIWO, O. O.. Assessing the Effects of a Minor CIR-HSS Geomagnetic Storm on the Brazilian Low-Latitude Ionosphere: Ground and Space-Based Observations. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 21, n. 9, p. 21-pg., . (17/50115-0)

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