研究了光纤环受温度影响产生非互易相移的机理,根据光纤陀螺在实际应用中的环境温度的干扰,建立了直观合理的光纤环时变温度场分布模型,在此基础上对陀螺的热致非互异噪声进行了定量分析。针对不同绕制结构的光纤环,对其温度漂移进行了数值模拟和比较,提出了减小和补偿光纤环热致非互异噪声的方法及相关技术。 The mechanism of the non-reciprocal phase-shift of the fiber ring under temperature influence is studied. According to the interference of the ambient temperature of the fiber optic gyro in practical application, an intuitive and reasonable time-varying temperature field distribution model of the fiber ring is established. Based on this, Thermally non-unique noise was quantified. Aiming at the optical fiber ring with different wound structures, the temperature drift of the optical fiber ring is numerically simulated and compared, and the methods and related technologies for reducing and compensating for the non-uniform noise caused by the fiber ring ring are proposed.