基于自抗扰的导弹一体化制导控制设计研究

采用自抗扰控制方法研究了一体化制导控制设计问题。根据导弹俯仰通道动力学模型和弹目相对运动模型,通过简化建立了含建模误差和不确定性的、具有级联形式的一体化状态模型,在此基础上设计了三个彼此相关的自抗扰控制器构成一体化控制。由于自抗扰控制器内涵的扩张状态观测器可在线估计由导弹气动参数摄动、目标机动及建模误差等引起的不确定性,并对不确定性能够进行补偿,因此设计的一体化控制器对未知不确定性具有良好的鲁棒性。仿真结果证明了基于自抗扰控制技术的一体化制导控制的有效性。

Integrated guidance and control design for missile based on ADRC

In this paper, active disturbance rejection control（ADRC） is used to study the integrated missile guidance and control problem. Based on Pitch channel dynamics model of missile and bombs target relative motion model, an integrated state model in the form of cascading with modeling errors and uncertainty is established by simplifying model. Based on this, three interrelated ADRCs are designed to constituting integrated controller. Since the extended state observer which is involved in the ADRC can estimate the uncertainty caused by the missile aerodynamic parameters perturbation, target maneuver and modeling errors online and uncertainty can be compensated by ADRC, the integrated controller has good robustness to unknown uncertainty. Simulation results show that the integrated guidance and control technology based on ADRC is effective.