|Title||GLOBAL STABILIZATION OF UNCERTAIN NONLINEAR TIME-DELAY SYSTEMS BY OUTPUT FEEDBACK|
|Publication Type||Journal Article|
|Year of Publication||2009|
|Authors||ZHANG CHENGHUI, ZHANG XIANFU, LIU XINZHI|
|Journal||Dynamic Systems and Applications|
|AMS Subject Classification||93C10|
In this paper, constructive control techniques have been proposed for controlling strict feedback (lower triangular form) nonlinear systems with a time delay in the state. The uncertain nonlinearities are assumed to be bounded by functions of the output multiplied by unmeasured states or delayed states. Based on the using of a linear dynamic high gain observer in combination with a linear dynamic high gain controller, the delay-independent output feedback controller making the closed-loop system globally asymptotically stable (GAS) is explicitly constructed. A simulation example is given to demonstrate the effectiveness of the proposed design procedure.