Apple uses EKF (Extended Kalman Filters) for the iPhone's GNSS system: https://w...

		antegamisou on Oct 14, 2023 \| parent \| context \| favorite \| on: Kalman filter from the ground up Apple uses EKF (Extended Kalman Filters) for the iPhone's GNSS system: https://www.patentlyapple.com/2020/11/apple-reveals-adding-t... I'm 100% sure there's some form of EKF on some loop on AirTags too.