Resonant fiber optic gyroscope(RFOG)is a kind of inertial sensor with a fiber ring resonator as the core sensitive device.To improve the simulation efficiency and applicability of the simulation,a resonant fiber optic gyro fast operation simulation method is proposed,and a resonant fiber optic gyro signal processing and closed-loop control model is constructed,in which the simulation of the resonant cavity multi-turn interferometric coupling adopts multi-core parallel operation and contains two forms of optical field superposition and transfer function.The simulation results show that the proposed method has high simulation efficiency,and the simulation is completed in about 16 s on average,which improves the running efficiency of the frequency locking program by 57.6%compared with the original model.Simultaneously,both simulation forms are suitable for the resonant fiber gyro simulation with an accuracy range of 0.0001～1(°)/(√h),which can effectively adapt to the testing requirements of different simulation parameters.The simulation efficiency of the transfer function form is improved by 5.4 times compared with that of the optical field superposition form,and the scale factor nonlinearity is reduced by 17%in the dynamic range of±600(°)/s.The zero-bias instability of the optical field superposition form is reduced to 0.652(°)/h,and the polarization fluctuation error characteristics are easily observed.
resonant fiber optic gyroscopetransfer functionsuperposition of optical fieldsparallel computing
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