一种新型导弹姿态稳定回路设计方法

A new-style design of missile attitude stabilization loop based on QFT

针对参数不确定性系统鲁棒控制比较成功的设计方法即采用定量反馈理论（QFT）设计，导弹在发射及转弯过程中，系统模型参数具有较强不确定性，且弹体参数随时间连续变化。本文以某型巡航导弹俯仰通道为研究对象，将定量反馈理论控制律设计方法应用于巡航导弹仿仰稳定回路控制系统的设计之中，设计该对象的姿态控制器并进行仿真研究。仿真结果表明，所设计的控制律满足导弹不同特征点的鲁棒稳定性指标和跟踪性能，且与传统PID控制相比，系统的过渡过程和超调量有了明显的改善。

QFT is a more successful design method with the uncertainty of model parameters in robust control system. There is a strong uncertainty characteristic about model parameters when the missile is launched or in the process of turn. And the parameters of missile also continual changes with time. A pitching channel of certain cruise missile is built up in this thesis, and QFT method is applied to the design of pitch stabilization loop attitude control system on cruise missile, then the attitudinal controller is designed and carried out a simulation study. Design result and simulation tests reveal that the controller satisfied the robust stability and track performance, compared with classic PID,there is obvious improvement in transition and overshoot of system.