Finite Time Preassigned Performance Control of Non-Strict Feedback Systems with Asymmetric State Constraints

This article investigates finite-time output feedback preassigned performance control for non-strict feedback systems with asymmetric time-varying state constraints and exogenous disturbances. Fuzzy logic systems are employed to estimate the uncertain functions within the system model. An integrated state observer is designed to address the challenges posed by unmeasured states. A series of finite-time performance functions (FTPFs) are incorporated with asymmetric barrier Lyapunov functions, ensuring that both the tracking control performance indicators and the time-varying asymmetric state constraints are satisfied. Finally, simulation results demonstrate the effectiveness of the proposed method.