Galileo Performance Verification in IOV Phase

Abstract

The Galileo IOV (In Orbit Validation) Phase is an intermediate step of the Galileo system deployment. The main objective of the IOV Phase is to demonstrate that the Galileo Full Operation Capability (FOC) requirements (as specified in the Galileo System Requirements [2]) can be met, with the support of analyses and simulations, before to complete the deployment of the full system. To this respect, the IOV is a “break” in the deployment to get sufficient confidence that the final system will properly work. The direct consequence of the above statement is twofold: a) the IOV system configuration is reduced with respect to the final one, but it has to be designed in order to be easily upgraded to the FOC configuration. Therefore, the design, the development and the deployment of this configuration has to be driven by the FOC requirements b) the IOV configuration may require additional functions/means to support the verification campaign that are not strictly required for the final system. The authors of this paper, members of the Galileo System Integration and Verification (SI&V) team are responsible for the definition and execution of the IOV test campaign within the industrial consortium called Galileo Industries (GAIN) that is currently building the Galileo IOV configuration. This paper presents the current state of definition of the IOV Test Campaign. Taking into account the constraints of the IOV configuration, a specific approach had to be developed to allow the verification in IOV of all GSRD requirements ([2]). In this paper the verification approach is presented, with particular focus on the System Performance Verification.