An inertial navigation system uses motion and rotation sensors along with a computer to figure out the position, orientation, and speed of movement of a vehicle without using the stars, Sun, Moon or other outside visual references.
Caption:
Inertial navigation systems determine the position, orientation, and velocity of a vehicle without using outside visual references.
Type: Illustration
Image Date: 2012
Credit: National Air and Space Museum, Smithsonian Institution.
Origin: National Air and Space Museum, Smithsonian Institution.