防空导弹侧向通道过载变结构控制设计及仿真

Design and Simulation of VSC for Acceleration Channel in Antiaircraft Missile

针对以大攻角飞行防空导弹三通道间严重的交叉耦合和气动参数剧烈的非线性变化,将三通道间的耦合等效为单通道的等效舵偏干扰,气动参数的非线性变化等效为标称参数的摄动,设计了一种变结构控制器,并以最大静不稳定点为弹道特征点进行了仿真。结果表明:该控制器具较高的稳态精度,能抑制一定的干扰和气动参数摄动。

A variable structure controller was designed for some antiaircraft missile when the cross-coupling among three-channels were treated as bound-limited disturbance of rudder pedal perturbation and the nonlinear variation of aerodynamic parameters were treated as bound-limited movement of linear parameters in this paper.The simulation results when the maximum unstable static point was characteristic point in trajectory showed that this controller was well static stability,which could suppress the certain distu...