DIGITAL MODULATION TECHNIQUE FOR INTERFEROMETRIC GYRO OPTICAL FIBER (IFOG) OF CLOSED MESH OF TWO LEVELS AND TWO PERIODS

摘要

digital modulation technique for two - level, two - period closed - loop, optical fiber (IFOG) interferometric gyroscopes. The present invention is in the technical field of inertial navigation systems and relates more specifically to a digital modulation technique for closed-loop optical fiber (IFOG) gyros, which is formed by the interleaving of two periods of time. two-level modulations. Such an approach eliminates the limitation of classical two-level modulation (low rpm scale factor control) and allows the implementation of inertial class gyros with excellent angle random walk (arw) and drift.