Finite-time fuzzy adaptive quantized output feedback control of triangular structural systems

This paper proposes a finite-time fuzzy adaptive quantized control scheme for a class of triangular structural nonlinear systems. Specifically, a smooth function with intermediate control law is introduced in the modified backstepping recursive process to eliminate the effect of quantization. The output constraints issue is solved by employing a barrier Lyapunov function. Then, a command filter is applied to avoid repeatedly differentiating virtual control signals and reduce the computational complexity. Moreover, the proposed method can guarantee that the tracking error converges to a small neighborhood of the origin in the finite time. Finally, the performance and the effectiveness of the proposed method are demonstrated via simulation results.