The concept of zero dynamics of a nonlinear system was introduced about thirty years ago
as nonlinear analogue of the concept of transmission zero of the transfer function of a …

Robustness is a basic property of any control system. In the context of linear output
regulation, it was proved that embedding an internal model of the exogenous signals is …

In this paper we propose a new design paradigm, which employs a postprocessing internal
model unit, to approach the problem of output regulation for a class of multivariable …

The paper deals with the output regulation problem of linear and nonlinear systems in the
presence of measurements that, besides the regulation error, might include also extra …

In this paper, we address the problem of output regulation for a broad class of multi‐input
multi‐output (MIMO) nonlinear systems. Specifically, we consider input–affine systems …

In this paper we propose a general framework in which the robustness properties and
requirements of output regulation schemes can be formally described. We introduce a …

This paper presents the design of a high-gain nonlinear observer for bilinear systems in the
block form. We prove the uniform exponential stability of the observer error by finding a …

This article delves into the semi-global robust output regulation of uncertain singular linear
systems subject to input saturation and denial-of-services (DoSs) attacks. In the event of a …

This paper studies global robust tracking of uncertain Euler-Lagrange systems with input
disturbances. The authors develop a robust regulation-based approach for the problem …

In this article, we address a problem of output regulation for a broad class of invertible multi-
input–multi-output (MIMO) nonlinear systems. The system that we consider is assumed to …