The aim of GNSS testing is to understand how a GNSS-enabled device will perform in the real world. Realistic testing is crucial for identifying and fixing performance issues before production or user deployment. While real-world testing has its place, it has drawbacks due to uncontrollable environmental factors. Achieving realism in the lab allows for controlled testing and early issue detection.

Simulation and record & playback systems offer state-of-the-art lab-based testing for GNSS. Bridging the gap between lab and real-world testing presents an opportunity for developers to reduce development cycle time. While fully replicating the real world in the lab is not practical, improving realism through accurate models of transmitters, receivers, propagation channels, and vehicle dynamics can significantly enhance the simulation environment. 

To create a realistic yet deterministic test environment, the following factors are essential: 

  1. Simulated GNSS signals should faithfully replicate real signals while providing control, repeatability, and modification capabilities. 

  2. Tight coupling between software and hardware ensures seamless integration. 

  3. Individual elements of the synthetic environment should closely mirror real-world characteristics and behavior. 

  4. Access to more accurate external data and models further enhances realism. 

Maximizing the realism of lab testing benefits GNSS receiver developers and integrators: 

  1. Faster time to market due to quicker reworks at the development stage. 

  2. Lower test costs as less field testing is required. 

  3. Reduced risk of undetected issues when the device is deployed to users.

  4. Enhanced safety by identifying and addressing potential problems early in the product lifecycle. 

Download this eBook to discover:

  • What is realism in lab-based GNSS testing?

  • How to achieve maximum realism in the lab

  • Four principles for realistic GNSS testing in the lab

  • Considerations for realistic simulation

  • Considerations for realistic RF record & playback

If you would like to collaborate with our experts to ensure realistic GNSS testing for your project, contact us.