GIPSIE® GNSS multi-system performance simulation environment

The software-based GNSS multi-system performance simulation environment GIPSIE® consists of two modules, the satellite constellation simulator (SCS) and the intermediate frequency simulator (IFS). While the SCS simulates the satellite orbits, by using a sophisticated orbit integrator, including modelling of environmental parameters like satellite clocks, transmit power, antenna patterns, ionosphere and troposphere, the IFS generates digital intermediate frequency signals including the simulation of a user definable radio frequency front-end (RFFE).

The digital signal simulator GIPSIE® streams the software generated signals or recorded live data exactly into the receiver’s baseband processing chain to support development, test, verification, validation, qualification and certification.

Key features

  • Simulation of multi-system, multi-frequency scenarios GPS L1/L2/L5, Galileo E1/E5/E6, GLONASS G1/G2, BeiDou B1/B2, QZSS L1/L2/LEX, IRNSS L5/S-Band, as well as SBAS (EGNOS/WAAS/MSAS/GAGAN L1)
  • “Record & Replay” of recorded and software generated data
  • Cost savings during receiver-development, verification, qualification and certification; time consuming test runs and validations are unnecessary
  • Flexible and modular system architecture with open interfaces
  • Numerous parameter settings existing, various bandwidths and resolutions available
  • User-friendly graphical interface
  • Logging of simulation parameters possible
  • GLONASS and BeiDou constellations and signals and simulation of micro-electro-mechanical sensors (MEMS) are coming soon
  • Simulation of Galileo PRS-like signals as well as the unencrypted GPS P-Code signals
  • Simulation of jamming, spoofing, and multipath signals on top of the GNSS signals


GIPSIE® can be applied for high-level simulation (MatLab, C/C++) as well as for hardware-simulation (HDL, Modelsim) and for test- qualification and certification of existing GNSS baseband hardware:

  • Development, optimizing, test and verification of acquisition, tracking and positioning algorithms
  • Generation of multipath strategies and algorithms to minimize interference susceptibility
  • Evaluation of baseband receiver hardware or positioning algorithms based on fully reproducible data and on comparison with simulation parameters
  • Identification of ideal settings/adjustments to improve the capability of GNSS receivers
  • And much more

For further information, please send an e-mail to: