What are GNSS Simulators?

GNSS Simulators are advanced test systems designed to replicate Global Navigation Satellite System signal environments for validation, verification, and performance assessment of navigation receivers and integrated subsystems. These simulators generate controlled RF signals that emulate satellite constellations, orbital dynamics, signal modulation, propagation delays, Doppler shifts, and environmental effects such as multipath and interference. By reproducing realistic navigation scenarios in a laboratory setting, GNSS simulators enable comprehensive testing without reliance on live satellite signals.

Engineered for high fidelity and repeatability, GNSS simulators support development, qualification, and regression testing of aerospace, defense, automotive, and research navigation systems. They allow controlled evaluation of positioning accuracy, timing synchronization, acquisition sensitivity, and robustness against signal impairments. Configuration parameters such as supported constellations, channel capacity, and simulator architecture determine the scope of scenario complexity and multi-receiver validation capability.

Key specifications of GNSS simulators:

• Simulator Type: Specifies the operational architecture of the simulator, such as real-time hardware simulator, software-defined simulator, or hardware-in-the-loop platform. Simulator type influences signal fidelity, scenario complexity, latency characteristics, and integration capability with external control and analysis systems.
• Equipment Type: Refers to the physical configuration of the simulator system, such as benchtop, rack-mounted, portable, or integrated laboratory platform. Equipment type affects deployment flexibility, scalability, environmental control, and compatibility with production or research testing workflows.
• Constellation: Defines the supported GNSS satellite systems, such as GPS, Galileo, GLONASS, or BeiDou. Constellation support determines signal structure compatibility, multi-constellation interoperability testing capability, and the ability to simulate combined navigation environments.
• Channel: Indicates the number of independent satellite signal channels the simulator can generate simultaneously. Channel capacity determines the complexity of simulated scenarios, multi-satellite tracking capability, and support for multi-frequency or multi-constellation receiver validation.

The Largest Database of GNSS Simulators

SatNow has listed GNSS Simulators from the leading manufacturers and made them searchable by specification. You can enter the key parameters and the search tool will scan catalogs from the leading manufacturers to identify products that meet your spec. Once you find GNSS Simulators that meet your requirement, you can view product information, download datasheets or request quotations. Quotation requests will be routed to the manufacturer of the product who will get back to you directly. The quotation will also be routed to distributors of the product in your region.