Search Results - "Moraes, Alison de Oliveira"

The variability of low‐latitude ionospheric amplitude and phase scintillation detected by a triple‐frequency GPS receiver by Oliveira Moraes, Alison, Costa, Emanoel, Abdu, Mangalathayil Ali, Rodrigues, Fabiano S., Paula, Eurico Rodrigues, Oliveira, Kelias, Perrella, Waldecir João

“…Ionospheric scintillation is a manifestation of space weather effects that seriously affect the performance and availability of space‐based navigation and…”
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A Simple and Effective Approach to Real-Time Ionospheric Monitoring at Low Latitudes and Its Applicability to GBAS by Marini-Pereira, Leonardo, de Oliveira Moraes, Alison, Pullen, Sam

“…This paper proposes a strategy for improving ionospheric detection of threatening conditions, motivated by issues with ground-based augmentation systems…”
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Ground-Based Augmentation Systems Operation in Low Latitudes - Part 1: Challenges, Mitigations, and Future Prospects by Marini-Pereira, Leonardo, Pullen, Sam, Moraes, Alison de Oliveira, Sousasantos, Jonas

“…ABSTRACT Ground-based augmentation systems (GBASs) were designed to support civil aviation precision approach and landing with safety and integrity. It has…”
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Ground-Based Augmentation System Operation in Low Latitudes - Part 2: Space Weather, Ionospheric Behavior and Challenges by Sousasantos, Jonas, Marini-Pereira, Leonardo, Moraes, Alison de Oliveira, Pullen, Sam

“…ABSTRACT Ionospheric dynamics over low latitudes, especially in Brazil, are highly active, with several phenomena resulting from the complex interaction…”
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On the distribution of GPS signal amplitudes during low-latitude ionospheric scintillation by de Oliveira Moraes, Alison, de Paula, Eurico Rodrigues, Perrella, Waldecir João, da Silveira Rodrigues, Fabiano

“…Ionospheric scintillations are fluctuations in the phase and/or amplitude of trans-ionospheric radio signals caused by electron density irregularities in the…”
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Advanced Warning of Threatening Equatorial Plasma Bubbles to Support GBAS in Low Latitudes by Marini-Pereira, L., Moraes, A. O., Pullen, S.

“…In low-latitude regions such as Brazil, the single-frequency Ground-Based Augmentation System (GBAS) is not yet fully operational due to the influence of…”
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A Novel Approach to Improve GNSS Precise Point Positioning During Strong Ionospheric Scintillation: Theory and Demonstration by Vani, Bruno Cesar, Forte, Biagio, Monico, Joao Francisco Galera, Skone, Susan, Shimabukuro, Milton Hirokazu, Moraes, Alison de Oliveira, Portella, Igor Ponte, Marques, Haroldo Antonio

“…At equatorial latitudes, ionospheric scintillation is the major limitation in achieving high-accuracy GNSS positioning. This is because scintillation affects…”
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Variability of Vertical Total Electron Content Gradients in the Brazilian Sector by Espejo, Teddy Modesto Surco, Costa, Emanoel, de Paula, Eurico Rodrigues, Moraes, Alison de Oliveira, Monico, Joao Francisco Galera

“…Ground Based Augmentation Systems are designed to meet demanding requirements during airport approach and landing sections of aircraft routes. It computes…”
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Validation of the α - μ Model of the Power Spectral Density of GPS Ionospheric Amplitude Scintillation by de Paula, Eurico Rodrigues, Honorato Muella, Marcio Tadeu de Assis, Costa, Emanoel, Moraes, Alison de Oliveira, Oliveira, Kelias, Perrella, Waldecir

“…The α - μ model has become widely used in statistical analyses of radio channels, due to the flexibility provided by its two degrees of freedom. Among several…”
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Statistical evaluation of GLONASS amplitude scintillation over low latitudes in the Brazilian territory by de Oliveira Moraes, Alison, Muella, Marcio T.A.H., de Paula, Eurico R., de Oliveira, César B.A., Terra, William P., Perrella, Waldecir J., Meibach-Rosa, Pâmela R.P.

“…The ionospheric scintillation, generated by the ionospheric plasma irregularities, affects the radio signals that pass through it. Their effects are widely…”
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Definition of Needs and Requirements for an Accessible Cabin on Regional Aviation by Nascimento Filho, Silvio Romero Oliveira, Souza, Jerusa Barbosa Guarda de, Moraes, Alison de Oliveira

“…ABSTRACT The global increase in the number of passengers with disabilities in the aviation market raises the need for airlines to offer an inclusive service to…”
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Proposal of an Accessible Cabin Concept on Regional Aviation for Passengers with Disabilities by Nascimento Filho, Silvio Romero Oliveira, Souza, Jerusa Barbosa Guarda de, Moraes, Alison de Oliveira

“…Abstract Despite a global increase in the number of passengers with disabilities on regional aviation, most aircraft cabins are still not adequately equipped…”
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A Retrospective of Global Navigation Satellite System Ionospheric Irregularities Monitoring Networks in Brazil by Paula, Eurico Rodrigues de, Monico, João Francisco Galera, Tsuchiya, Ítalo Hirokazu, Valladares, Cesar Enrique, Costa, Sônia Maria Alves, Marini-Pereira, Leonardo, Vani, Bruno César, Moraes, Alison de Oliveira

“…ABSTRACT The use of Global Navigation Satellite System (GNSS) for air and terrestrial navigation and for many applications is increasing in the last decades…”
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Climatology of the scintillation onset over southern Brazil by Sousasantos, Jonas, de Oliveira Moraes, Alison, Sobral, José H. A., Muella, Marcio T. A. H., de Paula, Eurico R., Paolini, Rafael S.

“…This work presents an analysis of the climatology of the onset time of ionospheric scintillations at low latitude over the southern Brazilian territory near…”
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Extended ionospheric amplitude scintillation model for GPS receivers by de Oliveira Moraes, Alison, Costa, Emanoel, de Paula, Eurico Rodrigues, Perrella, Waldecir João, Monico, João Francisco Galera

“…Ionospheric scintillation is a phenomenon that occurs after sunset, especially in the low‐latitude region, affecting radio signals that propagate through the…”
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The GNSS NavAer INCT Project Overview and Main Results by Monico, João Francisco Galera, Paula, Eurico Rodrigues de, Moraes, Alison de Oliveira, Costa, Emanoel, Shimabukuro, Milton Hirokazu, Alves, Daniele Barroca Marra, Souza, Jonas Rodrigues de, Camargo, Paulo de Oliveira, Prol, Fabricio dos Santos, Vani, Bruno César, Pereira, Vinicius Stuani Amadeo, Oliveira Junior, Paulo Sergio de, Tsuchiya, Italo, Aguiar, Claudinei Rodrigues

“…ABSTRACT Air navigation is increasingly dependent on the use of Global Navigation Satellite Systems (GNSS). It allows the determination of the aircraft’s…”
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Safety Analysis of GNSS Parallel Runway Approach Operation at Guarulhos International Airport by Rodrigues, Rodrigo Gentil, Fulindi, Jonas Bianchini, Oliveira, Diogo Bertolini Profeta de, Moraes, Alison de Oliveira, Marini-Pereira, Leonardo

“…ABSTRACT The air traffic environment is a complex system that involves several players. Between the air navigation service provider (ANPS) and the final…”
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Financial Analysis of an Illumination Retrofit for Regional Aircraft by Guimarães, Inah de Almeida Bossi, Moraes, Alison de Oliveira, Barbosa, Domingos Savio

“…ABSTRACT The light-emitting diode (LED) is the main lighting solution currently adopted in aircraft cabin lighting. This technology offers high durability,…”
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On the second order statistics for GPS ionospheric scintillation modeling by de Oliveira Moraes, Alison, de Paula, Eurico Rodrigues, de Assis Honorato Muella, Marcio Tadeu, Perrella, Waldecir João

“…Equatorial ionospheric scintillation is a phenomenon that occurs frequently, typically during nighttime, affecting radio signals that propagate through the…”
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Analysis of the Characteristics of Low-Latitude GPS Amplitude Scintillation Measured During Solar Maximum Conditions and Implications for Receiver Performance by de Oliveira Moraes, Alison, da Silveira Rodrigues, Fabiano, Perrella, Waldecir João, de Paula, Eurico Rodrigues

“…Ionospheric scintillations are fluctuations in the phase and/or amplitude of trans-ionospheric radio signals caused by electron density irregularities in the…”
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