Observer design for continuous-time dynamical systems

P Bernard, V Andrieu, D Astolfi - Annual Reviews in Control, 2022 - Elsevier
We review the main design techniques of state observer design for continuous-time
dynamical systems, namely algorithms which reconstruct online the full information of a …

LMI conditions for contraction, integral action, and output feedback stabilization for a class of nonlinear systems

M Giaccagli, V Andrieu, S Tarbouriech, D Astolfi - Automatica, 2023 - Elsevier
This article focuses on the class of linear systems coupled with a nonlinearity satisfying a
sector bound or a monotonic condition. First, we present a set of sufficient conditions based …

Sufficient conditions for global integral action via incremental forwarding for input-affine nonlinear systems

M Giaccagli, D Astolfi, V Andrieu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this article, we study the problem of constant output regulation for a class of input-affine
multi-input multi-output nonlinear systems, which do not necessarily admit a normal form …

Infinite gain margin, contraction and optimality: an LMI-based design

M Giaccagli, V Andrieu, S Tarbouriech… - European Journal of …, 2022 - Elsevier
In this paper we focus on nonlinear systems composed by a linear term plus a nonlinearity
satisfying a monotonic or a sector bound condition. We present sufficient conditions based …

Review on contraction analysis and computation of contraction metrics

P Giesl, S Hafstein, C Kawan - arXiv preprint arXiv:2203.01367, 2022 - arxiv.org
Contraction analysis considers the distance between two adjacent trajectories. If this
distance is contracting, then trajectories have the same long-term behavior. The main …

Distributed control of synchronization of a group of network nodes

LV Gambuzza, M Frasca… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Synchronization in networked systems of diffusively coupled oscillators is a ubiquitous, well-
studied phenomenon, and many techniques have been proposed to control all the network …

Cigarette smoke up‐regulates PDE3 and PDE4 to decrease cAMP in airway cells

H Zuo, B Han, WJ Poppinga… - British journal of …, 2018 - Wiley Online Library
Background and Purpose cAMP is a central second messenger that broadly regulates cell
function and can underpin pathophysiology. In chronic obstructive pulmonary disease, a …

Further results on incremental input-to-state stability based on contraction-metric analysis

M Giaccagli, D Astolfi, V Andrieu - 2023 62nd IEEE Conference …, 2023 - ieeexplore.ieee.org
In this paper, we study the notion of incremental stability for continuous-time nonlinear
systems forced by some external input. Thanks to the notion of “Killing vector field”, we …

Incremental stabilization of cascade nonlinear systems and harmonic regulation: a forwarding-based design

M Giaccagli, D Astolfi, V Andrieu… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In this work, we address the problem of designing a control law for a system in feedforward
form to be globally incrementally exponentially stable. To do that, we develop an …

Krasovskii and shifted passivity-based control

Y Kawano, KC Kosaraju… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this article, our objective is to develop novel passivity-based control techniques by
introducing a new passivity concept named Krasovskii passivity. As a preliminary step, we …