用三轴转台辨识陀螺仪误差模型系数时的速率试验设计

介绍了用三轴转台的匀角速率功能标定捷联陀螺仪的动态误差模型系数的方法。首先计算了陀螺仪的输出，陀螺仪的误差模型系数以及三轴转台三轴同时施加的角速率的函数关系。其次在给定不同的中、内环角速率比时，用傅立叶分析的方法得出了陀螺仪输出的各次谐波幅值与动态误差模型系数的关系，以及相应的结构矩阵和信息矩阵。最后根据信息矩阵行列式值与外环角速率的关系，选定了标定陀螺仪动态误差模型系数时的最优三轴速率试验计划。

Angular Velocity Test Plan Design for Identifying the Error Model Coefficients of Gyro Using Three-Axis Turntable

The method of calibrating the dynamic error model coefficients of a strapdown gyro using the uniform angular velocity function of three-axis turntable was introduced. At first the relationship among the output of the calibrated gyro, error model coefficients and three uniform angular velocities exerted by three-axis turntable was calculated. Then harmonic amplitude vectors of the gyro output were achieved by Fourier analysis method while the different velocity ratios of the middle axis and the inner axis being given, the structure matrix and the information matrix were also gained. Finally the optimum three-axis velocities test plan using three-axis turntable is selected by determination values of the information matrix versus the outer axis velocity.