Leading the Future of LEO PNT Simulation
Simulate, validate, and accelerate next-generation navigation systems with Skydel’s advanced multi-orbit GNSS and LEO simulation platform.
Skydel is more than a GNSS simulator. It is a development platform for the next era of resilient, multi-orbit navigation. By combining high-fidelity LEO simulation, unmatched scalability, and advanced threat modeling, Skydel enables innovators to design, test, and deploy the future of PNT with confidence.
Understanding LEO PNT Simulation with Skydel
As positioning, navigation, and timing (PNT) technologies evolve, Low Earth Orbit (LEO) constellations are emerging as a complement to traditional GNSS/GPS systems. These new architectures introduce unique dynamics, signal characteristics, and resilience opportunities that require advanced simulation and testing capabilities.
Skydel provides an ever-evolving software-defined environment for modeling, testing, and validating both GNSS and LEO-based navigation systems throughout the development lifecycle.
Who Benefits from LEO PNT Simulation?
Aerospace & Space
- Test LEO navigation concepts, receiver designs, and mission scenarios before deployment, reducing development risk and cost.
Defense & Government
- Evaluate PNT performance under jamming, spoofing, and degraded signal conditions to support resilient navigation systems.
Autonomous Systems
- Assess how hybrid GNSS and LEO signals can improve positioning reliability for drones, robotics, and autonomous vehicles.
Telecommunications & Critical Infrastructure
- Explore how LEO PNT can complement GNSS timing sources and improve the resilience of critical networks and infrastructure.
Why are LEO constellations changing PNT development?
Unlike traditional GNSS satellites operating in Medium Earth Orbit (MEO), LEO satellites move rapidly relative to users on the ground. This creates higher Doppler rates, faster satellite visibility changes, and different system-level behaviors that must be considered during receiver and system development.
To evaluate these effects, engineers require simulation tools capable of reproducing both GNSS and LEO environments with high fidelity.
Skydel
Skydel supports LEO and hybrid PNT systems
Skydel enables simulation of traditional GNSS constellations alongside emerging LEO PNT systems within a single platform. This allows developers to assess hybrid architectures, compare performance across different orbital layers, and validate receiver behavior before live constellation access is available.
Support for emerging LEO signals, including Xona PULSAR and CELESTE, helps users prepare for next-generation navigation services and explore new PNT concepts as they evolve.
Key LEO Simulation Capabilities
| LEO Capability | Skydel Advantage | Benefit |
|---|---|---|
| LEO Signal Support | Simulates emerging LEO PNT signals and constellations | Validate future navigation systems today |
| Hybrid GNSS + LEO | Models GNSS and LEO in a single scenario | Accelerate multi-orbit PNT development |
| High-Dynamic Simulation | 1000 Hz simulation engine | Accurately replicates LEO satellite behavior |
| Massive Constellation Scale | High-capacity signal generation | Test large LEO constellations with confidence |
| Software-Defined Architecture | Flexible GPU/SDR platform | Rapidly adapt to new signals and requirements |
| Real-Time Orbit Updates | Dynamic satellite data management | Create more realistic and accurate scenarios |
| End-to-End Validation | From constellation design to receiver testing | Reduce development risk and time-to-market |
| Integrated Threat Testing | Built-in jamming and spoofing simulation | Verify resilience in contested environments |
| Automation & APIs | Python, C#, and C++ control | Simplify testing and workflow integration |
| Continuous Innovation | Frequent software updates | Stay ahead of evolving PNT technologies |
How can next-generation LEO PNT systems be tested for performance, scalability, and resilience?
LEO PNT systems introduce faster satellite dynamics, larger constellations (more satellites), and new resiliency requirements compared to traditional GNSS.
Skydel addresses these challenges with a 1000 Hz simulation engine that accurately reproduces high-dynamic LEO environments, and leverages a software-defined GPU/SDR architecture capable of scaling to large constellations, and integrated jamming and spoofing capabilities for resilience testing. Together, these features allow users to validate performance, scalability, and interference resistance within a single, repeatable test environment.
What role does simulation play in the future of PNT?
As navigation systems expand beyond traditional GNSS, simulation is becoming an essential part of constellation design, receiver validation, and resilience testing.
Skydel provides a flexible platform for investigating LEO PNT concepts, testing hybrid navigation architectures, and evaluating system performance across a wide range of operational conditions.
Pulsar Verified.
CELESTE-ready.
With Xona-certified Pulsar simulation, support for emerging signals such as Celeste E5, high-fidelity 1000 Hz dynamics, and the ability to scale to large constellations through its software-defined architecture, Skydel provides the most future-ready environment available for LEO PNT innovation today.
Connect With Us
Contact us today to learn more about Safran’s LEO capabilities.