自适应子空间预测控制器在多通道伺服系统中的应用

为了提高末制导段激光半主动制导武器的精确控制能力和误差修正能力,设计了一种自适应子空间预测控制器,并将其应用于激光半主动制导武器末制导段多通道伺服系统中。算法首先构造了变遗忘因子机制下过去与将来Hankel矩阵的无偏更新形式,基于此设计了自适应子空间预测控制器,并将其应用于多通道伺服系统姿态角速率反馈控制回路中,以精确跟踪角速率指令信号,实现对激光半主动制导武器末制导段的精确控制。仿真算例验证了算法的有效性。

Self-Adaptive Subspace Predictive Controller Applying to the Servo system of Multi-Chanel

In order to improve the ability of precision strike and error correction, a new adaptive subspace predictive controller is proposed to apply in the servo system of laser semi-active homing guided weapon in terminal guidance period. At first, the unbiased updating form of past and future Hankel matrices is designed by considering the different effect of variable forgetting factors at different sample time, and the new adaptive subspace predictive controller is realized to use in the bounded control of the attitude angular rate feedback-loop. The simulation results show that the predictive output can track precisely the command signal of multi-channel attitude angular rate under the precondition of bounded input.