| Full text | |
| Author(s): |
Vinícius Amadeu Stuani Pereira
[1]
;
João Francisco Galera Monico
[2]
;
Paulo de Oliveira Camargo
[3]
Total Authors: 3
|
| Affiliation: | [1] Universidade Tecnológica Federal do Paraná. Curso de Agronomia - Brasil
[2] Universidade Estadual Paulista. Departamento de Cartografia - Brasil
[3] Universidade Estadual Paulista. Departamento de Cartografia - Brasil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Bol. Ciênc. Geod.; v. 27, 2021-04-16. |
| Abstract | |
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 SBGL_PL (calculation of SBGL HPL/VPL), whose methods and equations are presented in this paper. Since such determinations transmit the real ionospheric condition at the time of an approaching aircraft, they also allow performing the screening of the data, based on the Conterminous United States (CONUS) Threat Model threshold. Experiments carried out indicate that it is possible to attend CAT-I during the autumn (most affected season) at SBGL using GPS or GLONASS satellites, provided that the restrictions established by a temporal ionospheric threat model developed for the region are applied (avoid satellites with elevations between 10° and 37°). It was also found that the use of GLONASS in conjunction with GPS satellites makes it possible to meet CAT-III Horizontal and Vertical Alert Limit (HAL/VAL), since it has a better geometric configuration. (AU) | |
| FAPESP's process: | 17/50115-0 - GNSS technology for supporting air navigation |
| Grantee: | Joao Francisco Galera Monico |
| Support Opportunities: | Research Grants - Research in Public Policies |
| FAPESP's process: | 15/20522-7 - ASSESSMENT AND USABILITY OF GBAS IN BRAZIL |
| Grantee: | Vinícius Amadeu Stuani Pereira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |