SATERA

SPACE-BASED COMPOSITE ADS-B AND MULTILATERATION SYSTEM VALIDATION THROUGH SCALABLE SIMULATIONS (SATERA) will propose and validate an integrity estimator for space-based ADS-B systems based on crosschecking positions reported in ADS-B messages with position estimations provided by space-based MLAT systems. To reach this goal, SATERA will apply a stepped approach starting by the definition of high-level operational descriptions, identifying all the involved stakeholders, and detailing the CNS equipage of the fleet and the available air traffic services. The research team will develop theoretical models to assess and benchmark the proposed system architecture leading to a full list of functional requirements and interfaces description. SATERA will develop a system performance prediction tool to compute the theoretical performance of a MLAT system whose receiving stations are onboard of a constellation of LEO small satellites. This tool will take into consideration all the error sources that can affect the MLAT system performance and will be used to select the most suitable constellation. For validating the SATERA solution also end-to-end system evaluation tool that will be developed. Several validation exercises addressing the provision of composite space- based ADS-B+MLAT surveillance in the EURSAM and NAT corridors for realistic traffic will be done. Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or SESAR JU. Neither the European Union nor the granting authority can be held responsible for them.