文中研究了一种耦合严重的倾斜转弯高超声速巡航飞行器俯仰/偏航通道的自动驾驶仪设计问题。首先设计了一种比例-积分型的预补偿阵对耦合模型进行预补偿,然后对近似解耦的俯仰/偏航通道分别设计了自动驾驶仪,设计方法物理概念清晰,自动驾驶仪结构简单。仿真表明自动驾驶仪解耦效果明显,具有良好的指令跟踪性能和抗干扰能力。

The method of an autopilot design for bank to turn hypersonic cruise vehicle in which there is serious cross-coupling between the pitch and yaw channels was presented. The cross-coupling decreased with a PI pre-compensator matrix designed by the Nyquist array method, a main controller was then designed for the approximately decoupled system to meet the desired dynamic performance and stable accuracy. The physical concept of design method is clear and the autopilot has the characteristic of simple structure. The simulation demonstrates that, as for the compensated system, the cross-coupling is obviously reduced, and also shows that the autopilot has high tracking performance and robustness.