title: Global adaptive output feedback control for a class of nonlinear time-delay systems.
abstract: This paper addresses the problem of global output feedback control for a class of nonlinear time-delay systems. The nonlinearities are dominated by a triangular form satisfying linear growth condition in the unmeasurable states with an unknown growth rate. With a change of coordinates, a linear-like controller is constructed, which avoids the repeated derivatives of the nonlinearities depending on the observer states and the dynamic gain in backstepping approach and therefore, simplifies the design procedure. Using the idea of universal control, we explicitly construct a universal-type adaptive output feedback controller which globally regulates all the states of the nonlinear time-delay systems.
authors.affiliation: Key Laboratory of Measurement and Control of CSE, Ministry of Education, School of Automation, Southeast University, Nanjing, Jiangsu 210096, China. Electronic address: jyzhai@163.com.
authors.forename: Jun-yong
authors.initials: JY
authors.lastname: Zhai
authors.affiliation: Key Laboratory of Measurement and Control of CSE, Ministry of Education, School of Automation, Southeast University, Nanjing, Jiangsu 210096, China.
authors.forename: Wen-ting
authors.initials: WT
authors.lastname: Zha
keywords: Adaptive stabilization; Dynamic gain scaling; Nonlinear systems; Output feedback