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在分析激光陀螺的数学模型和三次样条函数拟合原理的基础上，针对俄罗斯某型低精度激光陀螺实际输入-输出特性曲线的数据，应用三次样条拟合方法进行分析处理，推导出了适用于非线性工作范围误差补偿且符合实际陀螺特性的数学模型。本文所提方法可用于工作区线性化较差、工作精度低的激光陀螺的精度补偿。
Based on the analysis of the mathematical model of the laser gyro and the fitting principle of the cubic spline function, aiming at the data of the actual input-output characteristic curve of a Russian low-precision laser gyro, the cubic spline fitting method is used to analyze and process the data. A mathematical model suitable for compensating for errors in the non-linear operating range and meeting the characteristics of the actual gyroscope. The method proposed in this paper can be used to compensate the precision of the laser gyro with poor linearity and low working accuracy in work area.