采用过载控制的自动驾驶仪设计

The Design of Autopilot Applying the Overload Control

提出了利用过载控制技术设计一种新型的自动驾驶仪 ,即在纵向和航向上采用专门的线加速度计和角加速度计来测量导弹的法向过载及其变化率 ,利用变结构控制方法设计了过载控制规律 ,从而实现对导弹法向过载的稳定和控制 .采用该驾驶仪设计了一种高低混合的方案飞行弹道 .最后 ,通过过载稳定回路和弹道仿真结果证明了该自动驾驶仪设计方案是可行的 .由于无需测量纵向和航向上的姿态角和角速率 ,因而在纵向和航向上可以不用陀螺 ,降低了驾驶仪的制造成本 ,使其结构也变得简单 .

A new kind of autopilot designed by applying the technology of overload control is proposed.The missile’s normal overloads and their velocity in the pitching and yawing channel are measured by special linear accelerometer and angular accelerometer respectively ,and the law of overload control is designed by using the VSS method,then stabillize and control for the missile’s normal overloads are realized .A high low combined trajectory is designed on base of the autopilot .At last,the feasibility of the design scheme is proved by the final simulation result of the stable loop and ballistic trajectory .Because no need of measuring the attitudes and their velocity in the pitching and yawing channel, the gyroscopes can be cancelled.So the manufacturing costs of autopilots are reduced and their structutes become simple.