Limits and Future GNSS Solutions for Aircraft Landing in Low Visibility Conditions
- Gustavo Sobreiro SantosInstituto Tecnológico de Aeronáutica (ITA)
- Carlos MüllerInstituto Tecnológico de Aeronáutica (ITA)
- Rogéria de Arantes GomesInstituto Tecnológico de Aeronáutica (ITA)
- Protógenes Pires PortoInstituto Tecnológico de Aeronáutica (ITA)
- Revista
- Journal of the Brazilian Air Transportation Research Society (JBATS) · ISSN 1808-3331
- Edição
- v. 9, n. 1, 2013 · p. 37-45
- Recebido / aceito
- 13/11/2013 / 17/12/2013
- Editor-chefe
- João Batista Camargo Jr. (Escola Politécnica, Universidade de São Paulo)
Abstract
The growing demand for air transportation in Brazil and all over the world pushes for improvements on communication and navigation in direction to safety and efficiency of flights. ICAO has currently worked to implement the standards for new satellite based precision landing system for situations where the runway visibility is limited. The ILS is the most used system in such situations up to today, but this is changing with the arrival of new and less costly technologies. The next generation system for precision landings will be GNSS based. This paper aims to give a brief review of ILS and GNSS, pointing out advantages and limitations of this new technology being supported by ICAO. The results show that despite the economic advantage, the GNSS could suffer from ionosphere’s errors. However, it is expected that in the future new techniques could be applied to increase the precision, availability, integrity and continuity of GNSS.
Keywords: Aircraft landing system; GNSS; ionosphere scintillation