An inertial navigation system integrates the angular rates and accelerations measured by an IMU over time to compute position, velocity and attitude, without any outside signal. Because small sensor errors add up, an INS is usually aided by GNSS, odometers or other sources; when those are lost it keeps navigating on inertia alone.
See Aeron's inertial navigation systems.
Where it is used
- Land vehicles
- UAVs
- Autonomous robots
- GNSS-denied navigation