Composite control with observers for a class of stochastic systems with multiple disturbances

<p style='text-indent:20px;'>In this paper, the composite anti-disturbances control problem is considered for a class of stochastic systems with multiple disturbances. The states system are assumed to be unavailable. A state observer and disturbance constructed estimate matched respectively. Based on estimated values observer, non-fragile controller designed achieve attenuation rejection. By means technique compensation theory, some sufficient conditions obtained guarantee that closed-loop asymptotically bounded in mean square or stable probability. Finally, numerical example given verify validity results.</p>