Test Method of Fiber Optic Gyroscope Based on Allan Variance
Allan variance based spline fit method is designed to determine some key technical specification of fiber optic gyroscope including random walk coefficient, bias stability, rate ramp, quantum noise, rate random walk, and so on. LabView based visualization data collection program is developed to sample the output digital data of KVH E•Core 2000 fiber optic gyroscope. The test results show that the method is good for improving the specification determination accuracy, and can simplify the test flow as well.
A. J. Zhou et al., "Test Method of Fiber Optic Gyroscope Based on Allan Variance", Advanced Materials Research, Vols. 311-313, pp. 1357-1360, 2011