自动化学报2007，Vol.33Issue(12)：1306-1312,7.
一类具有未知控制方向非线性系统的输出反馈自适应控制
Output-feedback Adaptive Control for a Class of Nonlinear Systems with Unknown Control Directions
摘要
Abstract
In this paper, output-feedback adaptive stabilization is investigated for a class of nonlinear systems with unknown control directions. First, through a linear state transformation, the unknown control coefficients are lumped together and the original system is transformed to a new system for which control design becomes feasible. Then, after the introduction of an observer and an estimator for state and parameter estimates, respectively, a constructive design procedure is given for the output-feedback adaptive stabilizing controller using integrator backstepping and tuning function techniques. It is shown that the controller designed ensures the original system state converges to the origin whereas all the other closed-loop system states are bounded. Simulation results are illustrated to show the effectiveness of the proposed approach.关键词
Nonlinear systems, unknown control directions, output-feedback, adaptive control, backsteppingKey words
Nonlinear systems, unknown control directions, output-feedback, adaptive control, backstepping分类
信息技术与安全科学引用本文复制引用
刘允刚..一类具有未知控制方向非线性系统的输出反馈自适应控制[J].自动化学报,2007,33(12):1306-1312,7.基金项目
Supported by National Natural Science Foundation of China(60374002, 60674036), the Science and Technical Development Plan of Shandong Province (2004GG4204014), and the Program for New Century Excellent Talents in University of China （60374002, 60674036）
