Real-Time GNSS RF Simulator

RTARTS GNSS-SIM — Real-Time GNSS RF Simulator

RTARTS GNSS-SIM is a real-time GNSS RF simulator for UAV, avionics and embedded navigation teams validating receivers and hardware-in-the-loop (HIL) systems.

GNSS-SIM trajectory preview with a satellite skyplot and channel power dashboard
Constellations
4
Real-time loop
100 Hz
HIL input
50–100 Hz
RF output
50 Ω SMA
Explore the technical details
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RTARTS GNSS-SIM

Silver RTARTS GNSS-SIM device viewed from the front and above
Product video

Introducing GNSS-SIM

Product overview

RTARTS GNSS-SIM is a real-time, multi-constellation GNSS RF simulator for receiver validation, aerospace avionics verification, and autonomous system development. It generates GPS L1 C/A, GLONASS L1OF, Galileo E1 and BeiDou B1I signals through a wideband multi-carrier architecture.

The platform is designed around repeatable lab validation. It accepts broadcast navigation data, recorded trajectories and real-time motion streams so teams can exercise receiver behavior before field testing.

HIL-ready motion ingestion

The HIL interface accepts 50–100 Hz UDP binary telemetry for real-time 6-DOF trajectory simulation, including position, velocity, acceleration, jerk, heading, pitch, roll and angular rates. The simulation loop updates at 100 Hz with a 10 ms epoch.

Multi-constellation RF synthesis

The simulation engine combines real-time broadcast propagation, RK4 integration for GLONASS state vectors, atmospheric models and attitude-aware antenna masking. Supported inputs include RINEX 2/3, CSV dynamic trajectories, real-time HIL streams and remote control through the Web UI or API.

GNSS-SIM drone trajectory scenario with skyplot and channel power telemetry

Interfaces and operating environment

The system provides direct coaxial 50 Ω SMA RF output and high-fidelity complex I/Q baseband recording. The RTARTS-provided host environment is supplied as part of the system configuration.

Discuss your receiver test setup

Tell us about your receiver, trajectory source and HIL interface. We will shape the right technical next step together.

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