id: 05629945 dt: j an: 05629945 au: Yang, Qing; Li, Shurong ti: Controller design for a class of time delay systems with uncertainty. so: J. Syst. Sci. Math. Sci. 28, No. 9, 1148-1157 (2008). py: 2008 pu: Science Press, Beijing la: ZH cc: ut: nonlinear systems; time delay; backstepping design ci: li: ab: Summary: A nonlinear robust controller is proposed for a class of single input single output time-delay nonlinear systems with system uncertainty. Based on an iterative procedure known as backstepping, the Lyapunov-Krasovskii functions are constructed at each step. By magnifying inequation at each step, a robust controller can be acquired, and the corresponding closed loop system is stable. The simulation result of two stage CSTR shows that the controller proposed in this paper has well control behavior. rv: