Output stabilization for a class of nonlinear systems via high-gain observer with limited gain power

A high gain observer with updated gain for a class of MIMO non-triangular systems

High gain observer for a class of non-triangular systems

High gain observer for a class of implicit systems

Under some observability assumptions (uniform observability), a high gain observer for a class of implicit dynamical systems is given in this paper. Numerically, the computation of trajectories of such implicit systems usually necessitates the use of an optimization algorithm together with an ODE numerical method. This complicates the synthesis of an observer. The observer design proposed here ...

Global Robust Stabilization and Output Regulation of a Class of Nonlinear Systems with Unknown High-Frequency Gain Sign

The output regulation problem is a central problem in control theory. The early work on output regulation problem in the state space framework can be traced to the early 1970s, and the problem of nonlinear systems has been an active topic since 1980s. So far there exist various results of this problem under various assumptions. In the case where the high-frequency gain sign is unknown, the glob...

High Gain Disturbance Observer-Based Control for Nonlinear Affine Systems

This paper proposes a high gain disturbance observer based control approach for nonlinear systems. Compared with previous works, it can admit a much larger class of disturbances produced by nonlinear exo‐systems. Our approach will follow the framework of the two‐stage design procedure, which separates the disturbance observer design from the controller desi...