Multi-GNSS simulation is the emulation, in the laboratory, of the environment under which a GNSS receiver operates. A Spirent Multi-GNSS simulator reproduces the environment of a GNSS receiver on a dynamic platform by modelling vehicle and satellite motion, signal characteristics, atmospheric and other effects, causing the Multi-GNSS receiver to actually navigate according to the parameters of the test scenario.

GNSS, Global Navigation Satellite System(s), is a general term for satellite constellation(s) that provides navigation and other services to users worldwide. Examples of GNSS in operation or being developed include GPS (USA), GLONASS (Russia), Galileo (EU) and Compass (PR China). A GNSS receiver will process these simulated signals in exactly the same way as it would those from actual GNSS satellites.

WHAT IS A MULTI-GNSS SIMULATOR?

A Multi-GNSS simulator provides an effective and efficient means to test GNSS receivers and the systems that rely on them. With a Multi-GNSS simulator, every time a test scenario is run, the signals produced are identical. The scenario will start at the same time on the same date, and the satellite positions will be identical – even down to the relative phase offsets between the different signals. In this way you can guarantee that the receiver is being stimulated with the exact same signals every time the test is run. Only this way can you fully determine any improvement (or otherwise) the design alterations have made.

MULTI-GNSS SIMULATION SOLUTIONS

• Multi-GNSS simulators from Spirent provide a superior alternative for testing compared to using actual GPS/GNSS signals in a live environment (live sky)
• Multi-GNSS simulation provides control and repeatability over the generated signals all within the confines of the lab and far ahead of final system deployment, helping to reduce project timescales and costs
• Multi-GNSS simulation enables signals to be emulated before they exist in space, something not possible by using a live sky environment
• Multi-GNSS simulation solutions from Spirent range from basic single-channel simulators, suitable for simple GPS/GNSS production testing, through multi channel, multi constellation simulators, suitable for the most demanding research and engineering applications

MULTI-GNSS TESTING

• The GSS8000 Multi-GNSS Constellation Simulator provides GPS/SBAS, GLONASS and Galileo signals. GPS configurations can also support QZSS and SBAS. Classified signals and various options are also available.
• The GSS6700 Multi-GNSS Simulation System offers multiple channels of GPS/SBAS, GLONASS and/or Galileo L1 signals.
• The GSS6300 Multi-GNSS Signal Generator provides a single channel of GPS/SBAS, GLONASS and/or Galileo L1 signals for production testing of commercial GNSS receivers.

eBooks

• The Role of Simulation in the Integration of GNSS Receivers
  Adding location awareness.
• Simulation vs. Real World Testing 
  How to undertake controlled testing of your GNSS receiver design.
• Testing Multipath Performance 
  How multipath simulation can be used to evaluate the effects of multipath on the performance of GNSS receivers.
• Quality Control for Location-Enabled Devices
  A guide to production testing.

White Papers

• Why Simulate?
  What is a GNSS Simulator? Why should you use one for testing?
• What is GNSS Simulation?
  How can simulation help reduce your time to market?

Brochures

• GSS8000 Series
  GNSS Constellation Simulator. Capability, flexibility & fidelity in GNSS simulation.
• Multi-GNSS
  Test solutions for Multi-GNSS Navigation & Positioning.