Time-varying window length dynamic Allan variance analysis method on the basis of fuzzy control
A technique of variance analysis and fuzzy control, applied in the field of inertial navigation, can solve problems such as the inability to track the dynamic characteristics of signals in real time, and achieve the effect of evaluating algorithm performance
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[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] The overall flow chart of this method is as follows figure 1 As shown, the fuzzy controller is designed, and the primary rate of change and the secondary rate of change of the output signal of the fiber optic gyroscope are used as the input of the fuzzy controller, and the length of the dynamic Allan variance window corresponding to the output signal of the fiber optic gyroscope at each moment is determined to form a dynamic Allan variance time-varying window Long, calculate the dynamic Allan variance of the output signal of the fiber optic gyroscope according to the time-varying window length of the dynamic Allan variance, and realize the analysis of the output signal of the fiber optic gyroscope. The above process needs to complete the following tasks:
[0023] 1. Solution of signal change rate
[0024] Let the output signal of the fiber optic gyroscope be x...
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