GSGSE

GNSS Signal Generator Streaming Extension

GSGSE

Aims

Development of a GNSS signal generator with real time streaming capabilities by combining S1000/S1010 (by IZT) and our GIPSIE®:

  • Achieving real-time simulation capability
    • Real-time RF signal generation
    • Real-time control of the simulation environment
  • Keeping the flexibility, performance and tremendous features of GIPSIE® as well as S1000/S1010
  • Sound testing, verification and validation

Brief Description

We are are successfully cooperating with IZT (Innovationszentrum für Telekommunikationstechnik GmbH) in the field of GNSS signal generation. Currently IZT uses their S1000 / S1010 RF simulator as a hardware platform and we provide our GIPSIE® (GNSS Constellation & Signal Generation) software. In the current set-up for simulating GNSS RF signals, the GIPSIE® software generates digital signal files according to the wishes of the customers (e.g. eCall testing), which are then stored in the S1000 / S1010. Once this is done, the stored files can be played back by the customer.
Although this solution provides a huge flexibility in terms of GNSS signal fidelity and scenario generation, international customer feedback asked for real-time and streaming functionalities. The real-time control of the simulation environment allows the user to change parameters of the simulation scenario (e.g. switching on/off satellites, changing simulated receiver trajectory, or changing the environmental conditions) in real-time, so that it has an almost instantaneous impact on the receiver under test.
The envisaged GSGSE will be a full featured GNSS signal generator with real time streaming capability. Although no hardware development is required, the GNSS signal generation has to be moved from a multi-threaded software solution towards an FPGA implementation which implies the realisation of a real-time interface between GIPSIE® and S1000/S1010.
The innovation of the GSGSE solution are the real-time RF signal generation by keeping the flexibility of a software-based simulation environment and the real-time control capabilities.

Facts

Project Partners

  • OHB Digital Solutions GmbH (Lead)
  • Innovationszentrum für Telekommunikationstechnik GmbH
  • TeleOrbit GmbH

Customer

Acknowledgement:
GSGSE was carried out under a programme of and funded by the European Space Agency. The view expressed herein can in no way be taken to reflect the official opinion of the European Space Agency.
esa

Financing

ESA (European Space Agency) within NAVISP (Navigation Innovation and Support Programme)

Status

  • Running