PNT by Other Means: Safran Federal Systems
Summary
An exclusive interview with Garrett Payne, Navigation Engineer, Safran Federal Systems (formerly Orolia Defense & Security). So, I’ve been able to get deep into developing and fine tuning the filter inside for an assured and robust navigation solution. For example, if you’re in a GNSS-degraded environment, the Versa has some software that can alert you to that and will automatically filter out those measurements, and then navigate based on the other sensors. So, it’s going to cut off the GNSS speed and continue to provide a PNP solution based on inputs from the other sensors — such as an IMU, a speedometer, an odometer, or a camera. That’s why it’s important to use a navigation filter that’s initialized with a good position from GNSS or other sources, so that you can estimate and dynamically correct the IMU drift using bias terms and offsets.