Galileo Second Generation - G2G

Systems Engineering Services

Since 2014 Telespazio has a key role in the design of the evolution of the European Navigation System Galileo in its Second Generation as system engineering expert.

The company has held a key role in the frame of the contract EGEP ID97 overseeing the largest service of the framework, namely WO05, counting 4 people and supporting the whole ESA System Engineering team.

From 2018, as Subcontractor of Airbus Gmbh in H2020-20 WO1.01 the company provides expert System Engineering support to the whole team with a special focus on the following areas:

  • System and space segment requirements engineering
  • Architecture Engineering (MBSE)
  • Data Dissemination
  • Operations

In the context of G2G, Telespazio is assisting ESA in the Phase A/B0/B1 with a major role in the analyses and definition of the system. Among all the activities performed, outstanding contributions to ESA System Engineering activities are:

  • System requirements engineering at system and segments level, especially space segment, managing the DOORS database and taking care of justification and traceability from mission to segments;
  • Contribution to the functional model of the system to ensure the consistency of space segment requirements;
  • Definition of the system dissemination concept for all architecture, in particular for the satellites interfaces;
  • Definition of the ISL concept and Space-to-Space ICD;
  • Definition of the preliminary System management, monitoring and control concept;
  • Analyses and definition of the preliminary G2G Authentication concept for OS-NMA and ARP;
  • Expert advisor to ESA participating to reviews, supporting technical discussion towards Customers and Industrial entities.

During this service, Telespazio Belgium developed analyses tools on-purpose in Matlab/STK for communication analyses and support to mission analyses. A non-exhaustive list of tools designed on purpose by Telespazio Belgium is provided in the following:

  • ISL network connectivity latency performance evaluation tool;
  • Constellation visibility and contact analyses tools;
  • Mission Uplink Antennas scheduling algorithm prototype;
  • TT&C antennas scheduling analyses tool for supporting extended constellation constituted by satellites in nominal operations, LEOP and transfer;
  • Authentication tools for theoretical assessment, in particular:
    • Assessment of OS NMA user availability in AWGN and LMS channel;
    • Signal detection performance through Receiver Operating Curve;
    • Tracking performance assessment for different signal modulation;
    • Anti Replay Protection simulator, performing signal generation and multiplexing, generation of spoofing scenario, flexible GNSS receiver enabling separate or simultaneous acquisition and tracking of open and ARP components of E1D;
  • SAR MEOLUT analyses tools, including:
    • Beacon Generation, Detection e Localisation;
    • Tracking Plan algorithm.
    • Orbit Determination (Rinex e SP3)