The approximate controller gives the rough control and the neural network controller gives the complementary signal to further reduce the output tracking error.
常规控制器对系统给出粗略控制，神经网络控制器给出补偿信号来进一步减小系统输出跟踪误差。
2
In the first chapter, concepts and their relevant knowledge about the optimal control, approximate optimal solution and stability are introduced in the chapter.
第一章，简要地介绍了本篇论文中所涉及到的最优控制，近似最优解和稳定性的概念和相应的基础知识。
3
A filter bank is adopted to compose the approximate inverse system, which is the feed-forward controller in the composite control strategy.