BTT导弹自动驾驶仪多变量频域设计方法

本文用多变量频域理论中的逆奈奎斯特阵列法设计某型ＢＴＴ导弹自动驾驶仪，首先建立ＢＴＴ导弹控制系统模型，并在某特征点设计驾驶仪的预补偿器、主控制器和反馈增益阵，而后在最严峻的激励作用下，对设计的驾驶仪进行非线性仿真，结果表明：导弹跟踪性能良好；补偿后俯仰一偏航通道间的耦合作用明显降低。设计方法物理概念清晰，易于工程实现。

AUTOPILOT DESIGN USING THE INVERSE NYQUIST ARRAY METHOD FOR A BANK-TO-TURN MISSILE

This paper presents an application of the inverse Nyquist Array(INA) technique to autopilot design of a highly maneuverable Bank-to-Turn(BTT) missile in which there is severe cross-coupling that is proportional to roll rate between the pitch and yaw axes.First,the pitch and yaw channels are analysed and the interactions are decreased with a constant precompensator matrix designed by the INA method.A maincontroller and a feedback gain matrix are then desighed for the approximately decoupled system to meet the desired dynamic performance and stable accuracy.Finally,the performance of the autopilot designed is evaluated in a non-linear simulation of autopilot with crucial excitation.The results demonstrate that,for the compensated system, the crosscoupling is boviously decreased.Excellent performance in terms of good command following properties and small side-slip is obtained.The pyhsical concept of design method is clear and the designed controllers are easy for physical implementation.