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倾斜转弯控制技术的控制特点决定了倾斜转弯导弹成为一个强耦合的非线性时变系统,这为其控制系统设计增大了难度。将某型倾斜转弯导弹俯仰、偏航及滚动通道间的耦合作用看作是干扰,然后应用H∞控制理论设计导弹自动驾驶仪。简单有效的方法就是求解代数Riccati方程的正定解,从而可以构造系统的反馈增益矩阵,得到满足要求的反馈控制器,但评估信号的选取是一个关键。通过三通道控制系统联合仿真研究表明,该设计方法可行,设计的自动驾驶仪对倾斜转弯导弹控制效果好,能快速跟踪导引指令,满足设计指标。
The control characteristics of Tilt Turn Control Technology determine that the Tilt Turn Missile becomes a strongly coupled nonlinear time-varying system, which makes it more difficult to design the control system. Considering the coupling between pitch, yaw and rolling path of a tilting missile, the missile autopilot is designed using H∞ control theory. A simple and effective method is to solve the positive definite solution of algebraic Riccati equation, so that the feedback gain matrix of the system can be constructed and the feedback controller satisfying the requirements can be constructed. However, the selection of the evaluation signal is a key issue. Through the joint simulation research of three-channel control system, this design method is feasible. The designed autopilot has good control effect on tilt-turn missiles and can quickly follow the guidance commands to meet the design requirements.