Fiber optic gyroscope for strap-down inertial navigation systems

Strap-down inertial navigation system is a low cost and high precision inertial navigation system. With the fast development of fiber optic gyros, FOG strap-down inertial navigation system is taking place of traditional electro- mechanic gyros inertial navigation system of. Discussed in this paper are fiber optic gyros used in a strap-down inertial navigation system and strap-down inertial navigation system consisting of three-axis FOGs.