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为有效克服光纤陀螺温度漂移和标度因数非线性带来的测量误差,提出了一种非线性综合模型来进行补偿。通过对某型号闭环光纤陀螺的温度速率实验数据进行分析,辨识出模型参数。结果表明,该模型能有效补偿温度及温度变化率对光纤陀螺输出精度的影响,较好地改善光纤陀螺在复杂温度环境下的输出性能。
In order to effectively overcome the measurement error caused by the temperature drift of the fiber optic gyroscope and the scale factor nonlinearity, a nonlinear integrated model is proposed to compensate. By analyzing the experimental data of the temperature rate of a closed-loop FOG, the model parameters are identified. The results show that the model can effectively compensate for the temperature and temperature rate of change on the output accuracy of FOG, and better to improve the FOG output performance under complex temperature environment.