Real-time GNSS simulator


GIPSIE-RTX is a fully featured GNSS signal generator with real-time streaming functionality including real-time control of the simulation environment. It consists of a high-quality signal simulator as hardware platform and a flexible and powerful GNSS simulation environment.
The multi-system and multi-frequency capable GIPSIE-RTX simulates arbitrary satellite orbits using a sophisticated orbit integrator and is able to model all error sources, delays and propagation effects. These include various models for satellite clocks, ionosphere and troposphere, multipath, signal power, antenna patterns and noise. In addition, multiple types of signal interference, like jamming and spoofing, can be defined. Customized navigation message formats and contents can be used to simulate future GNSS signal features.
Besides generating RF signals, GIPSIE-RTX is also capable of directly simulating digital signals taking into account user-defined modelling of a radio-frequency front-end. Comprehensive data logging of all intermediate results is available for detailed analyses.
GIPSIE-RTX provides a real-time input interface and thus supports hardware-in-the-loop (HIL) testing, e.g. for automotive applications.

GIPSIE-RTX is a new compact multi-channel high performance platform for complex and versatile GNSS testing:

  • Highly reproducible scenarios
  • Modelling of all error sources, delays and propagation effects
  • Interference (jamming and spoofing) simulation
  • HIL (Hardware in the Loop) simulation
  • Synchronization of multiple simulators for advanced testing (e.g. array antenna)
  • 2 separate RF outputs per device

Supported GNSS signals

  • GPS: L1 C/A, L2C, L5
  • Galileo: E1 B/C, E5a-I/Q, E5b-I/Q
  • GLONASS: G1 C/A, G2 C/A
  • BeiDou: B1, B2
  • SBAS: L1 C/A

Constellation update rate: up to 250 Hz
Number of channels: up to 128


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.