GSG-7 High-End GNSS Simulator

One Platform. Mission-Critical GNSS Simulation Across Domains.

The GSG-7 GNSS Simulator is a high-performance, software-defined GNSS simulation platform designed for defence, space, and autonomous vehicle applications. With a 1000 Hz simulation iteration rate, all-in-view satellite simulation, and real-time synchronization, GSG-7 enables precise, repeatable testing of navigation and timing systems in the most demanding environments.

Powered by the industry-leading Skydel simulation engine, GSG-7 supports multi-constellation, multi-frequency GNSS simulations, including all current and future GNSS signals. A comprehensive SDK enables the integration of custom and proprietary waveforms, ensuring flexibility for sensitive and advanced use cases.

Core Capabilities

• 1000 Hz real-time simulation iteration rate

• All-in-view satellite simulation

• Multi-constellation and multi-frequency GNSS support

• Ultra-low-latency Hardware-in-the-Loop (HIL)

• Live sky time synchronization

• On-the-fly scenario reconfiguration

• 6 Degrees of Freedom (DoF) receiver trajectories

• GPU-accelerated real-time satellite simulation

• Software-defined radio (SDR) architecture

• Comprehensive API (Python, C#, C++ open-source clients)

Defence GNSS Simulation

Mission-Critical GNSS Testing for Defence Applications

The GSG-7 GNSS Simulator for defence is engineered for military and national security programs that require deterministic performance, high dynamics, and secure GNSS testing. GSG-7 enables validation of mission-critical Positioning, Navigation, and Timing (PNT) systems across land, sea, air, and space domains.

Defence-Focused Capabilities

• Ultra-high dynamic motion and trajectory simulation

• Advanced HIL with near-zero effective latency

• Support for proprietary and sensitive GNSS signals via SDK

• Deterministic, repeatable test scenarios

• Flexible licensing and in-field upgradability

Defence Use Cases

• Tactical and strategic navigation system development

• Platform-level integration and verification

• PNT resilience and system performance validation

• Complex, multi-antenna and multi-platform testing

Request a Defence-Grade GNSS Simulation Demo

See how GSG-7 delivers deterministic performance, advanced HIL, and secure GNSS simulation for mission-critical defence applications.

Space GNSS Simulation

High-Fidelity GNSS Simulation for Space Missions

The GSG-7 GNSS Simulator for space applications supports the development and validation of spaceborne GNSS receivers and navigation payloads. Designed for orbit-level dynamics and high-velocity trajectories, GSG-7 delivers the precision required for spacecraft, launch vehicles, and orbital platforms.

Space-Grade Simulation Capabilities

• Orbit and spaceflight trajectory simulation (LEO, MEO, GEO)

• 6 DoF motion modelling for spacecraft dynamics

• High-resolution dynamics with 1000 Hz iteration rate

• Multi-constellation GNSS visibility above Earth orbit

• Live sky time synchronization for mission realism

Space Use Cases

• Spacecraft navigation payload testing

• Launch, ascent, and re-entry simulations

• GNSS signal validation for space platforms

• Offline analysis using IQ file generation and playback

Evaluate GSG-7 for Spaceborne GNSS Applications

Validate orbit-level dynamics, multi-constellation visibility, and high-precision GNSS performance for space missions.

Autonomous Vehicle GNSS Simulation

Reliable GNSS Testing for Autonomous Vehicles and ADAS

The GSG-7 GNSS Simulator for autonomous vehicles enables developers to validate GNSS performance in real-world and edge-case scenarios—safely, repeatably, and at scale. GSG-7 supports high-dynamic vehicle motion, real-time HIL, and seamless integration into automotive and robotics test environments.

Autonomous Vehicle Capabilities

• High-dynamic vehicle trajectory simulation

• Ultra-low-latency HIL for closed-loop testing

• All-in-view satellite simulation in real time

• On-the-fly scenario and environment reconfiguration

• Multi-antenna and sensor fusion testing

Autonomous Vehicle Use Cases

• Autonomous driving and ADAS validation

• Urban, highway, and high-speed testing scenarios

• GNSS performance evaluation under dynamic motion

• Integration with vehicle ECUs and test benches

Accelerate Autonomous GNSS Testing with GSG-7

Run real-time, high-dynamic GNSS simulations for ADAS and autonomous vehicle development—safely and repeatably.

GNSS Signals Supported

· GPS: L1 C/A, L1C, L1-P, L2-P, L2C, L5

· GLONASS: G1, G2

· Galileo: E1, E5a, E5b, E5 AltBOC, E6 HAS

· BeiDou: B1, B2, B1C, B2a

· QZSS: L1 C/A, L1S, L2C, L5, L5S

· SBAS (L1/L5): WAAS, EGNOS, MSAS, GAGAN, SDCM

· Custom & Proprietary Signals

Advanced Signal Propagation & Error Modelling

• Multipath and standard propagation models

• Ionospheric and tropospheric effects

• Satellite clock and navigation message errors

• Antenna pattern modelling

• Relativistic effects

• Pseudorange and ephemeris errors

Future-Proof GNSS Simulation Platform

With a software-defined architecture, GPU acceleration, and support for current and future GNSS signals, GSG-7 is built to evolve with mission requirements—delivering long-term value across defence, space, and autonomous vehicle programs.

Talk to a GNSS Simulation Expert

Get guidance on configuring GSG-7 for defence, space, or autonomous vehicle applications.

One Platform. Mission-Critical GNSS Simulation Across Domains.