SPAN GNSS+INS Technology
SPAN GNSS+INS technology combines GNSS satellite positioning with inertial navigation system (INS) measurements from inertial measurement units (IMUs). This technology provides not only the absolute positioning you expect with GNSS, but also the velocity, attitude and heave measurements for an exceptional 3D navigation solution.
By deeply coupling the GNSS and inertial measurements, GNSS tracking is refined to aid acquisition of satellite signals. This process strengthens the accuracy of your current position, and extends positioning reliability even during periods with GNSS signals are unavailable.