Adaptive output feedback tracking for a class of nonlinear systems

作者：Zhang Xu^*; Lin Yan

来源：Automatica, 2012, 48(9): 2372-2376.

DOI：10.1016/j.automatica.2012.06.002

• Nonlinear systems
• Output feedback
• Global asymptotic tracking
• High-gain observer
• Adaptive backstepping

We design an adaptive output feedback controller for global asymptotic tracking of a class of nonlinear systems involving unknown parameters and unmeasured states multiplied by output nonlinearities. A modified high-gain observer is introduced, which consists of a series of high-gain K-filters with one dynamic gain and the controller design employs the adaptive backstepping approach. It is proved that by using the proposed method, global stability of the closed loop system can be guaranteed and the output tracking error converges to zero asymptotically.

• 出版日期2012-9
• 单位北京大学