Composite Robust H Control for Uncertain Stochastic Nonlinear Systems With State Delay via a Disturbance Observer.

In this note, the robust stochastic stabilization and robust H∞ control problems are investigated for uncertain stochastic time-delay systems with nonlinearity and multiple disturbances. By estimating the disturbance, which can be described by an exogenous model, a composite hierarchical control scheme is proposed that integrates the output of the disturbance observer with the state feedback contr...