211 citations · 225 across the 21 of their papers we have counts for
17 papers · 1 filter
On the Solvability of Quasi-Regulator Equations in Non-smooth Output Regulation
Zirui Niu, Daniele Astolfi, Giordano Scarciotti
Motivated by the prevalence of non-smooth, possibly non-periodic signals in real-world applications, the output regulation of linear systems subject to non-smooth non-periodic exog…
Learning a Contracting KKL-observer with Local Optimal Guarantees
Clara Lucía Galimberti, Johan Peralez, Daniele Astolfi +2
The Kazantzis-Kravaris-Luenberger (KKL) observer provides a general framework for nonlinear state estimation by immersing the system dynamics into a stable linear or nonlinear late…
A Nonlinear Incremental Approach for Replay Attack Detection
Tao Chen, Andreu Cecilia, Lei Wang +2
Replay attacks comprise replaying previously recorded sensor measurements and injecting malicious signals into a physical plant, causing great damage to cyber-physical systems. Rep…
Integral action for bilinear systems with application to counter current heat exchanger
Francesco Ripa, Daniele Astolfi, Boussad Hamroun +1
In this study, we propose a robust control strategy for a counter-current heat exchanger. The primary objective is to regulate the outlet temperature of one fluid stream by manipul…
Chaotic Masking Protocol for Secure Communication and Attack Detection in Remote Estimation of Cyber-Physical Systems
Tao Chen, Andreu Cecilia, Daniele Astolfi +3
In remote estimation of cyber-physical systems (CPSs), sensor measurements transmitted through network may be attacked by adversaries, leading to leakage risk of privacy (e.g., the…
Generalized Lyapunov conditions for k-contraction: analysis and feedback design
Andreu Cecilia, Samuele Zoboli, Daniele Astolfi +2
Recently, the concept of k-contraction has been introduced as a promising generalization of contraction for dynamical systems. However, the study of k-contraction properties has fa…
State estimation of an electrochemical lithium-ion battery model: improved observer performance by hybrid redesign
E. Petri, T. Reynaudo, R. Postoyan +3
Effective management and just-in-time maintenance of lithium-ion batteries require the knowledge of unmeasured (internal) variables that need to be estimated. Observers are thus de…
Hybrid multi-observer for improving estimation performance
E. Petri, R. Postoyan, D. Astolfi +2
Various methods are nowadays available to design observers for broad classes of systems, where the primary focus is on establishing the convergence of the estimated states. Neverth…
Total stability and integral action for discrete-time nonlinear systems
Samuele Zoboli, Daniele Astolfi, Vincent Andrieu
Robustness guarantees are important properties to be looked for during control design. They ensure stability of closed-loop systems in face of uncertainties, unmodeled effects and…
Decentralized event-triggered estimation of nonlinear systems
E. Petri, R. Postoyan, D. Astolfi +2
We investigate the scenario where a perturbed nonlinear system transmits its output measurements to a remote observer via a packet-based communication network. The sensors are grou…
Towards improving the estimation performance of a given nonlinear observer: a multi-observer approach
E. Petri, R. Postoyan, D. Astolfi +2
Various methods are nowadays available to design observers for broad classes of systems. Nevertheless, the question of the tuning of the observer to achieve satisfactory estimation…
Event-triggered observer design for linear systems
E. Petri, R. Postoyan, D. Astolfi +2
We present an event-triggered observer design for linear time-invariant systems, where the measured output is sent to the observer only when a triggering condition is satisfied. We…
Nonlinear Robust Periodic Output Regulation of Minimum Phase Systems
Daniele Astolfi, Laurent Praly, Lorenzo Marconi +1
In linear systems theory it's a well known fact that a regulator given by the cascade of an oscillatory dynamics, driven by some regulated variables, and of a stabiliser stabilisin…
Forwarding design for stabilization of a coupled transport equation-ODE with a cone-bounded input nonlinearity
Swann Marx, Lucas Brivadis, Daniele Astolfi
We propose a new design technique for the stabilization of coupled ODE-PDE systems in feedforward form. In particular, we address the stabilization problem of a one-dimensional tra…
About Robustness of Control Systems Embedding an Internal Model
Michelangelo Bin, Daniele Astolfi, Lorenzo Marconi
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 necessa…
Integral Action in Output Feedback for multi-input multi-output nonlinear systems
Daniele Astolfi, Laurent Praly
We address a particular problem of output regulation for multi-input multi-output nonlinear systems. Specifically, we are interested in making the stability of an equilibrium point…
A High-Gain Nonlinear Observer with Limited Gain Power
Daniele Astolfi, Lorenzo Marconi
In this note we deal with a new observer for nonlinear systems of dimension n in canonical observability form. We follow the standard high-gain paradigm, but instead of having an o…