Vibration noise analysis and filter processing of fiber optic gyroscope

Fiber optic gyroscope is an inertial measurement device, has been used in aviation, aerospace and navigation fields widely. It’s easy affected by the vibration noise in the surrounding environment and the application scene. The vibration causes the stress of the fiber ring to change, pigtail vibration of the optical device and the structure resonance of the fiber gyroscope, These changes will affect the performance indexes of the fiber gyroscope, such as zero bias and zero bias stability. Filter method is added to the data processing of fiber optic gyro in paper, and the vibration noise data is filtered by adaptive adjustment of filter parameters. To a certain extent, the influence of vibration and noise on the performance of fiber optic gyroscope is reduced, the zero bias drift is reduced, and the zero bias stability of fiber optic gyroscope is improved after filtering.