Multi-constellation/Dual frequency (MC/DF) GNSS
- SJU reference # PJ.14-03-02 /Release 2019
- Status In the pipeline
Standardisation developments for multi-constellation GNSS receivers have so far focused on the certain constellations, such as and Galileo. This includes the satellite-based augmentation systems, such as EGNOS in Europe. However, GNSS receivers also need to operate with other constellations and alternative augmentation systems. The impact of processing additional core constellations or new augmentation systems presents interoperability challenges in term of the avionics and receiver/antenna architecture and requires further evaluation. The SESAR research looks at the design and capability of antenna front-end design; out of band rejection characteristics and receiver architectures; and algorithms and transition between areas operated with distinct subsets of GNSS elements approved for operational use.
The SESAR solution aims to enable performance-based navigation procedures and allow for the ground infrastructure to be rationalised. Navigation procedures include: precision approach with horizontal and vertical guidance, advanced approaches concepts, multiple runway aiming points, further runway aiming point, adaptive runway aiming point, adaptive increased glide slope, low-visibility procedures (LPV) or GLS-GAST-C below 200ft, vertical geometric navigation to support enhanced navigation in the terminal manoeuvring area, as well as ADS-B and 4D concepts.
SJU references: #PJ.14-03-02/Wave 2
- Greater resistance to interference through
the use of independent constellation infrastructure and frequencies, and enhanced signal design
- Greater availability due to additional satellites and signals
- Robustness to the impact of control segment errors and failures
- Improved accuracy, integrity, availability and continuity through the exploitation of new satellites signals