Tiago Roux Oliveira

Resilient Extremum Seeking Control for Cyber-Physical Systems Under Denial-of-Service Attacks

Filipe da Silva Bastos Teixeira, Pedro Henrique Silva Coutinho, Tiago Roux Oliveira +1

Extremum seeking control (ESC) relies on deliberately injected excitation to extract optimization information from measured outputs, making its networked implementation particularl…

Extremum Seeking Control: Three Revolutions and the Road Ahead

Tiago Roux Oliveira

The history of extremum seeking is not merely the history of an algorithm; it is the history of an idea. Few ideas in control engineering have demonstrated the remarkable longevity…

Towards Co-Designed Event-Triggered Extremum Seeking

Roberto Luo, Pedro Henrique Silva Coutinho, Victor Hugo Pereira Rodrigues +2

This paper studies event-triggered gradient-based multivariable extremum seeking for nonlinear maps with polytopic Hessian uncertainty. Unlike existing event-triggered extremum-see…

Event-Triggered Discrete-Time Multivariable Extremum Seeking Systems

Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira, Miroslav Krstić +1

This paper introduces a discrete-time event-triggered extremum seeking framework for real-time optimization of multivariable nonlinear systems. In contrast to conventional discrete…

Discrete-Time Event-Triggered Extremum Seeking

Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira, Miroslav Krstić +1

This paper proposes a discrete-time event-triggered extremum seeking control scheme for real-time optimization of nonlinear systems. Unlike conventional discrete-time implementatio…

Event-Triggered Newton Extremum Seeking for Multivariable Optimization

Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira, Miroslav Krstic +1

This paper presents a static event-triggered control strategy for multivariable Newton-based extremum seeking. The proposed method integrates event-triggered actuation into the New…

Extremum Seeking Control for Wave-PDE Actuation with Distributed Effects

Elisio Juvenal Muchave, Pedro Henrique Silva Coutinho, Tiago Roux Oliveira +1

This paper deals with the gradient-based extremum seeking control (ESC) with actuation dynamics governed by distributed wave partial differential equations (PDEs). To achieve the c…

Extremum-Seeking Boundary Control for Schrödinger-Type PDEs

Paulo Henrique Foganholo Biazetto, Gustavo Artur de Andrade, Tiago Roux Oliveira +1

This paper addresses the design and analysis of an extremum-seeking (ES) controller for scalar static maps in the context of infinite-dimensional dynamics governed by complex-value…

Gradient- and Newton-Based Unit Vector Extremum Seeking Control

Roberto Luo, Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira +1

This paper presents novel methods for achieving stable and efficient convergence in multivariable extremum seeking control (ESC) using sliding mode techniques. Drawing inspiration…

Distributed Event-Triggered Nash Equilibrium Seeking for Noncooperative Games

Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira, Miroslav Krstic +1

We propose locally convergent Nash equilibrium seeking algorithms for $N$ -player noncooperative games, which use distributed event-triggered pseudo-gradient estimates. The proposed…

Event-Triggered Source Seeking Control for Nonholonomic Systems

Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira, Miroslav Krstic

This paper introduces an event-triggered source seeking control (ET-SSC) for autonomous vehicles modeled as the nonholonomic unicycle. The classical source seeking control is enhan…

Extremum Seeking Boundary Control for Euler-Bernoulli Beam PDEs

Paulo H. F. Biazetto, Gustavo A. de Andrade, Tiago Roux Oliveira +1

This paper presents the design and analysis of an extremum seeking (ES) controller for scalar static maps in the context of infinite-dimensional dynamics governed by the 1D Euler-B…

Extremum Seeking Control for Multivariable Maps under Actuator Saturation

Enzo Ferreira Tomaz Silva, Pedro Henrique Silva Coutinho, Tiago Roux Oliveira +1

This paper deals with the gradient-based extremum seeking control for multivariable maps under actuator saturation. By exploiting a polytopic embedding of the unknown Hessian, we d…

Multivariable Extremum Seeking Unit-Vector Control Design

Enzo Ferreira Tomaz Silva, Pedro Henrique Silva Coutinho, Tiago Roux Oliveira +1

This paper investigates multivariable extremum seeking using unit-vector control. By employing the gradient algorithm and a polytopic embedding of the unknown Hessian matrix, we es…

Unit-Vector Control Design under Saturating Actuators

Andevaldo da Encarnação Vitório, Pedro Henrique Silva Coutinho, Iury Bessa +2

This paper deals with unit vector control design for multivariable polytopic uncertain systems under saturating actuators. For that purpose, we propose LMI-based conditions to desi…

Event-Triggered Newton-Based Extremum Seeking Control

Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira, Miroslav Krstic +1

This paper proposes the incorporation of static event-triggered control in the actuation path of Newton-based extremum seeking and its comparison with the earlier gradient version.…

Multivariable Stochastic Newton-Based Extremum Seeking with Delays

Paulo Cesar Souza Silva, Paulo Cesar Pellanda, Tiago Roux Oliveira

This paper presents a Newton-based stochastic extremum-seeking control method for real-time optimization in multi-input systems with distinct input delays. It combines predictor-ba…

Lie-Bracket Nash Equilibrium Seeking with Bounded Update Rates for Noncooperative Games

Victor Hugo Pereira Rodrigues, Tiago Roux Oliveira, Miroslav Krstic +1

This paper proposes a novel approach for local convergence to Nash equilibrium in quadratic noncooperative games based on a distributed Lie-bracket extremum seeking control scheme.…

Extremum and Nash Equilibrium Seeking with Delays and PDEs: Designs & Applications

Tiago Roux Oliveira, Miroslav Krstić, Tamer Başar

The development of extremum seeking (ES) has progressed, over the past hundred years, from static maps, to finite-dimensional dynamic systems, to networks of static and dynamic age…

A Systematic LMI Approach to Design Multivariable Sliding Mode Controllers

Pedro Henrique Silva Coutinho, Iury Bessa, Victor Hugo Pereira Rodrigues +1

This paper deals with sliding mode control for multivariable polytopic uncertain systems. We provide systematic procedures to design variable structure controllers (VSCs) and unit-…

Population Control of Giardia lamblia

Victor Hugo Pereira Rodrigues, Maria Fantinatti, Tiago Roux Oliveira +1

Giardia lamblia is a flagellate intestinal protozoan with global distribution causing the disease known as giardiasis. This parasite is responsable for 35.1% of outbreaks of diarrh…