基于Matlab/Simulink的光纤陀螺系统建模与仿真

摘要

In order to accurately understand the working process of fibre optic gyroscope (FOG),the modelling and simulative analysis on digital closed-loop FOG is carried out with Matlab-based Simulink software.The focus of the analysis puts on the influence of half-wave voltage fluctuation on the accuracy of gyroscopes,where the fluctuation is caused by Y waveguide which is a key component of FOG.Simulation results shows that the simulation model can timely track the modulation gain drift and compensate it.%为了准确理解光纤陀螺的工作过程,基于Matlab的Simulink软件对数字闭环光纤陀螺进行建模和仿真分析,重点分析光纤陀螺的关键器件Y波导的半波电压波动对陀螺精度的影响.仿真结果表明,仿真模型能够对调制增益漂移进行实时跟踪和补偿.