SBASs: Working together
WAAS, EGNOS, GAGAN, MSAS, SDCM, K-SBAS …
All SBASs are regional systems.
The need of a seamless transition between SBAS service areas
Not only underlines the importance of adequate cooperation
But also makes issues of compatibility and interoperability critical.
The endeavors by the ICAO and SBASs
To target the development of dual frequency multi constellation SBAS by 2018
Not only may help address the ionospheric issues
But will also lead to a robust infrastructure
Enabling proper service delivery to end users and maximizing the benefits.