Inertial navigation systems provide a solution to the problem of determining a vehicle's position without relying on external signals.
These systems use accelerometers and gyroscopes to measure changes in speed and orientation.
The platforms of these systems have gimbals that maintain a constant alignment with the horizon.
The constant cooperation between the accelerometers, gyroscopes, gimbals, and platform allows for continuous corrections during flight.
Inertial navigation systems are attractive to the military due to their independence from external signals.