摘要：This paper studies the tracking control and constraint control problem of strict-feedback stochastic nonlinearsystem with input saturation constraint. First, a novel errortransformation function is designed and applied to the designprocess of the prescribed performance controller, so that thesteady-state and transient performance can be guaranteed andthe error of the system can be effectively constrained. Then, aanti-trigonometric function is used to approach the system inputfunction, in this way, the controller can be designed directly bybackstepping technology. Next, the stability analysis proves thatall the signals in the closed-loop system are uniform ultimatelybounded (UUB) in probability. Lastly, the results of simulationfurther verify the effectiveness of the proposed method.
关键词：backstepping; prescribed performance control (PPC); input saturation constraint; strict-feedback stochastic nonlinear system
