Adaptive fixed-time consensus control of nonlinear multiagent systems with dead-zone output

This paper proposes a fixed -time leader -follower consensus tracking control scheme for uncertain multiagent systems with unknown dead -zone output. First, a novel approximate dead -zone model was introduced to accurately represent the dead -zone phenomenon in the output channel of nonlinear multiagent systems. Furthermore, the model presented is a smooth function, which greatly simplifies the process of fusing it with the backstepping technique. Second, we present a Nussbaum function to compensate for the uncertain gain from the output dead -zone nonlinearity. Third, unlike previous works, we first consider practical fixed -time consensus issues for multiagent systems with output dead -zone. Finally, according to the fixed -time control theory, the tracking error of the multiagent systems converges to the region around zero within a fixed time, which is confirmed by the simulations.