We offer full GNSS constellation simulation capabilities, including: GPS + Galileo + GLONASS + SBAS + Interference and more, or any combinations, as required.

A GNSS simulator provides an effective and efficient means of testing GNSS receivers and the systems that rely on them. A GNSS simulator provides control over the signals generated by GNSS constellations and over the global test environment all within a box, so that testing can be conducted in controlled laboratory conditions. GNSS simulators generate the same kinds of signals transmitted by GNSS satellites, thus GNSS receivers process the simulated signals in exactly the same way as signals from actual satellites.

Global Navigation Satellite System (GNSS) is a general term for a system that provides navigation and other services to users worldwide. Each GNSS employs a constellation of satellites, which broadcasts signals processed by GNSS receivers to determine location, speed, and time for users anywhere in the world.

GNSS SYSTEMS

There are four GNSS systems (GPS, Galileo, GLONASS and BeiDou-2) and four Satellite Based Augmentation Systems (SBAS) which will be available by the middle of this decade. There are already over 60 GNSS and SBAS satellites in operation (including 32 from GPS) and more than 130 are planned.

GNSS SIMULATION SOLUTIONS

The core requirement of any GNSS receiver test, whether for development, integration or production purposes, is for a controlled, repeatable signal. For many tests, the signal control includes flexibility over test case, or scenario, conditions that enable performance testing at nominal and extreme or error-state conditions. This is only possible by simulation.

• GNSS simulators from Spirent provide a superior alternative for testing compared to using actual GNSS signals in a live environment (live sky)
• 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
• 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 and GNSS production testing, through multi channel, multi constellation simulators, suitable for the most demanding research and engineering applications

GNSS Testing

• The GSS8000 Multi-GNSS Constellation Simulator provides GPS/SBAS, GLONASS, BeiDou-2 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, Galileo and Beidou-2 L1/B1 signals.
• The GSS6300 Multi-GNSS Signal Generator provides a single channel of GPS/SBAS, GLONASS and/or BeiDou-2 and/or Galileo L1 signals for production testing of commercial GNSS receivers.