车载战术导弹传递对准仿真研究

研究了车载战术导弹发射前的传递对准问题。提出了将主惯导安装于导弹发射架上,利用导弹发射前发射架的俯仰运动作为激励加快传递对准过程的方法。推导了弹载子惯导的误差方程和用于传递对准的量测方程。根据推导的方程设计了卡尔曼滤波器实现速度加姿态匹配传递对准。针对导弹发射前载车的典型运动情况进行了仿真。仿真结果表明,在载车运动过程中弹载子惯导的水平姿态误差角估计误差可在30 s内减小到2’以内,通过导弹竖起过程中角运动的激励,航向误差角估计误差迅速减小到3’以内。

Simulation of Transfer Alignment of Vehicle Tactical Missile

The transfer alignment of the tactical missile is investigated.The main strap-down inertial navigation system(SINS) which is used as the navigation system of the land vehicle is installed on the launcher of the missile.A transfer alignment method which takes the advantage of the launcher’s movement is presented.The error model for the alignment is deduced in detail.Base on the error model,a Kalman filter is designed to accomplish the alignment.Simulation is conducted to demonstrate the feasibility of the new method.The result shows that the estimation errors of the attitude errors reduce to 2′ in 30 s when the vehicle in the moving state.And the estimation errors of the yaw angle reduce to 3′ after the launcher’s pitching movement.