Two unified adaptive control approaches of uncertain delayed nonlinear systems.

This article investigates the adaptive regulation problem of uncertain delayed nonlinear systems. Remarkably, the systems have multiple delays in systems' states and the input, and the nonlinear terms as a whole can belong to one of four different growing conditions. By introducing the dynamic-gain-based transformations, we obtain the new dynamic systems. By using homogeneous domination method, adaptive regulation strategy and by flexibly selecting the dynamic gain, two unified adaptive control methods are presented such that the obtained systems are globally asymptotic stable. Simulation results verify the effectiveness of the methods of this paper. [ABSTRACT FROM AUTHOR]