安装误差和动不平衡对旋转导弹惯性器件输出的影响及补偿

为了提高旋转导弹惯性器件的测量精度.建立了弹体坐标系和动平衡坐标系并给出其转换关系;给出了陀螺仪坐标系、加速度计坐标系分别与弹体坐标系之间的转换关系.推导了安装误差和弹体动不平衡引起的陀螺仪和加速度计的测量误差模型,并进行了仿真.结果表明,利用直接补偿和高通滤波补偿方法实现了对陀螺仪和加速度计测量结果的补偿,仿真结果验证了补偿方法的可行性.

Influence of Installation Error and Dynamic Imbalance on the Output of Inertia Devices in Rolling Missiles and Its Compensation

To improve the measurement precision of inertia devices in rolling missile,the missile body coordinate and dynamic balance coordinate system were established,and the transform between them was derived.The transformations among gyro coordinate,accelerometer coordinate and missile body coordinate system were also given in this paper.The models for the measurement error of gyros and accelerometers,which are caused by installation error and body dynamic imbalance,were deduced.Simulation results show the necessi...