u-blox ZED-F9K high-precision dead reckoning module

The u-blox F9 GNSS technology platform provides high location accuracy. Designed to serve mass market industrial and automotive applications, the F9 platform combines multi-band global navigation satellite system (GNSS) technology with dead reckoning and high precision algorithms, and is compatible with a variety of GNSS correction data services to achieve accuracy down to the centimetre level.

The F9 platform is designed to deliver a fast time to first fix (TTFF) by using multi-band (L1/L2/L5) GNSS signals to provide robustness against interference and errors caused by ionospheric effects. By concurrently receiving signals from four GNSS constellations (GPS, GLONASS, Galileo, BeiDou), it leverages a range of satellite signals to increase the availability of high-precision positioning even in difficult urban environments. Using a multi-band real-time kinematic (RTK) correction service and an embedded RTK algorithm, the platform is designed to achieve centimetre-level accuracy with an RTK update rate of up to 20 Hz.

The F9 platform includes built-in jamming and spoofing detection systems that protect against intentional and unintentional interference. Dead reckoning technology based on inertial sensors extends high-precision performance to otherwise challenging urban environments.