GalileoSat System Simulation Facility A Systems Engineering Solution

Alastair Pidgeon, Martin Fruhauf, Peter Fritzen, Marc-Elian Begin, Bev Davies, Paola Bellucci, Xavier Cyril, Vidal Askenazi, Mark Dumville and J. Salvador Llorente

Abstract:	Galileo is an initiative of the European Union (EU) and the European Space Agency (ESA). It comprises the development, implementation and operation of a stateof- the-art global navigation satellite system. The operation of Galileo will be performed under civilian control. GalileoSat is the complementary development initiative of ESA for the space and associated ground segments. The Galileo programme is very much user-driven and time to market is critical for its success. This implies designing and developing the many different components of the system in parallel – a considerable systems engineering challenge. The GSSF is one of a number of ESA funded systems and facilities designed to support the development of the Galileo space, ground and user segments. Each of these tools will have different uses and roles. The GSSF is a software simulator tool that reproduces the functional and performance behaviour of the GalileoSat system in order to support the GalileoSat definition, integration, validation, verification, and operations. The development of the GSSF will proceed in phases. ESA has awarded the contract for development of the first two phases of GSSF to a consortium led by VEGA Informations-Technologien GmbH, Germany. This paper describes the architecture of the GSSF, identifies its users and describes the tasks they will expect to carry out. In the first phases of GSSF development, considerable emphasis has been placed on defining the users’ requirements and the approach taken is described.
Published in:	Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000) September 19 - 22, 2000 Salt Palace Convention Center Salt Lake City, UT
Pages:	1791 - 1797
Cite this article:	Pidgeon, Alastair, Fruhauf, Martin, Fritzen, Peter, Begin, Marc-Elian, Davies, Bev, Bellucci, Paola, Cyril, Xavier, Askenazi, Vidal, Dumville, Mark, Llorente, J. Salvador, "GalileoSat System Simulation Facility A Systems Engineering Solution," Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000), Salt Lake City, UT, September 2000, pp. 1791-1797.
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