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首次分析了光纤陀螺仪探测器输出信号中频率固定的尖峰脉冲对光纤陀螺仪零偏漂移的影响机理,给出了尖峰脉冲影响光纤陀螺仪零偏漂移的误差模型:根据干涉式数字闭环光纤陀螺仪探测器输出信号的特点,提出了一种基于高速集成模拟开关的时域选通尖峰脉冲抑制具体实现方法,实验验证了尖峰脉冲引起的零偏漂移大小和理论分析接近,表明了误差模型的正确性,同时表明该方法能够有效降低尖峰脉冲引起的光纤陀螺仪零偏漂移。
For the first time, the influence mechanism of the spikes with fixed frequency in the output signal of the fiber gyroscope on the zero offset drift of the fiber gyroscope is analyzed, and the error model of the zero offset drift of the fiber gyroscope is given. According to the interferometric digital closed loop fiber optic gyroscope The characteristics of the detector output signal, a high-speed integrated analog switch based on the time-domain gating spike suppression implementation method, the experimental verification of the spike-induced drift in the zero bias and the theoretical analysis is close, indicating that the error model Correctness. At the same time, it shows that this method can effectively reduce the zero-drift of optical fiber gyroscope caused by spikes.