挠性航天器高精度智能控制方案研究

从工程角度出发，研究了智能控制方案，旨在提高挠性航天器的姿态指向精度和稳定度。针对挠性模态不可测的特点，文中采用了输出反馈变结构控制来抑制挠性附件的振动，并用神经网络自适应控制来补偿系统的不确定性因素。智能控制的引入使得控制器具有很强的自学习和自适应能力，可降低不确定性因素对系统产生的影响，减小系统的稳态误差，从而达到高精度控制的目的。仿真结果证明了该方法的有效性。

Intelligent Control Research for High Precision Attitude of Flexible Spacecraft

A novel scheme for integrating a neural network approach with a variable structure control for the high precision attitude control of a class of flexible spacecraft was presented. Since the modes of flexible structure were inuneasurable, the paper addressed the design of variable structure control only using static output feedback. The unknown dynamics and external disturbances were compensated by a neural network, so the controller had both non-linear control and adaptive control capabilities. Simulation results show that precise attitude control is accomplished based on the proposed method.