H∞tracking control problem for completely unknown nonlinear system based on augmented matrix

摘要

This paper addresses the H_∞to tracking control problem for unknown nonlinear system based on the online ADP structure. We first use an identifier NN to approximate the unknown system. In order to transform the tracking problem into the regulation problem, the augmentation system is then constructed based on the identifier. Another NN is used to approximate the cost function in the HJI equation, such that H_∞to tracking control pairs can be obtained without the solution of the HJI equation. Moreover, a novel estimation algorithm is developed to online update the NN weights simultaneously. Finally, a simulation is presented to demonstrate the validity of the proposed method.