ABSTRACT
This paper develops an algebraic disturbance and state estimation method for a class of multi-input multi-output (MIMO) systems with non-zero-mean output measurement noise. The motivation is to design a novel output-based estimation method for state-feedback anti-disturbance control systems. By using the constructed modulating functions, both the disturbance and system state are explicitly expressed through output-based algebraic integral formulas. To enhance the efficiency of online estimation, a sliding integration window is applied to the proposed algebraic integral formulas. For discrete-time applications, the proposed formulas are easy to implement numerically, and the effects of the corrupting output measurement noise are analyzed. Finally, simulation examples on anti-disturbance control systems illustrate the efficiency and the robustness of the proposed estimation method against non-zero-mean output measurement noise.
International Journal of Robust and Nonlinear Control, EarlyView. Read More
