2021
DOI: 10.1590/s1982-21702021000s00010
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Abstract: Determinations of the vertical ionospheric gradient standard deviation (σ vig ) in real time to each Global Positioning System (GPS) and Globalnaya Navigatsionnaya Sputnikovaya Sistema (GLONASS) satellite available in Ground-Based Augmentation System (GBAS) of the Rio de Janeiro International Airport (SBGL) were used in the estimates of Horizontal and Vertical Protection Level (HPL/VPL). For this purpose two software were developed: MoR_Ion_RT (real time ionospheric threat assessment for GBAS in Brazil) and SB… Show more

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Cited by 3 publications
(2 citation statements)
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“…Therefore, the HPL describes the confirmed region based on probability as containing the indicated horizontal position. Assuming that the horizontal position errors have Gaussian distribution, the HPL can be calculated considering a fault-free missed detection, which corresponds to a probability (PEREIRA et al 2021). In this work, a simplified HPL was considered based only on the mean value of the positional error, represented by a circle, and the radius of PL value was obtained using the following equation:…”
Section: Methodsmentioning
confidence: 99%
“…Therefore, the HPL describes the confirmed region based on probability as containing the indicated horizontal position. Assuming that the horizontal position errors have Gaussian distribution, the HPL can be calculated considering a fault-free missed detection, which corresponds to a probability (PEREIRA et al 2021). In this work, a simplified HPL was considered based only on the mean value of the positional error, represented by a circle, and the radius of PL value was obtained using the following equation:…”
Section: Methodsmentioning
confidence: 99%
“…the use of the DGPS method as the primary method for aircraft positioning [6,12,13], -the use of the DGPS method to determine the reference position of the aircraft trajectory [14,15], -the use of the DGPS method as part of the GBAS (Ground Based Augmentation System) and the PA (Precision Approach) [16][17][18][19][20][21][22][23][24], -the application of the DGPS method in mapping applications, cartography and photogrammetry [25][26][27][28], -the application of the DGPS method in monitoring the ionosphere [29], -the use of the DGPS method in integration with various positioning sensors to determine flight altitude [30,31], -the determination of the accuracy and precision of DGPS positioning in air navigation [8,[32][33][34], -the determination of the integrity of positioning using the DGPS technique [34,35], -the integration of DGPS and DGLONASS (Differential GLONASS) solutions [6,13,36].…”
Section: Related Papersmentioning
confidence: 99%