中文摘要：

死区现象是闭环光纤陀螺特有的现象，它使陀螺输出具有明显的非线性，严重影响闭环光纤陀螺的测量精度；文章采用了中值滤波的方法消除输入信号中的误差信息，同时，又通过控制D／A转换器的参考电压的方式，对阶梯波2π复位电压进行修正，到达消除死区现象的效果；从实验结果对比可以看出，该方法有效抑制了陀螺死区现象的发生。

英文摘要：

The deadband is a special phenomena of closed--loop Fiber Optic Gyroscope, which will make the gyroscope output appear obvious nonlinear and affect the accuracy of closed--loop FOG serious. In order to eliminate the effect of dead zone, the author eliminated the error information in the input signal by using the method of median filter, and repaired V2π Reset of the step wave by controlling the D/ A converter reference voltage. The experiment result shows that this method can suppress the FOG deadband phenomenon.