Igor Pontes Duff

PhD student at Onera, Toulouse
Full name: Igor Pontes Duff Pereira
Nationality: Brazilian
Birth: June 16th,1989 (Rio de Janeiro,Brazil)
Email adress: ipontes@onera.fr
Download my CV here
Download Thesis resume here

Mountain View

Curriculum Vitae

Brief presentation

I'm a PhD student at Onera (the French aerospace lab) under the supervision of Charles Poussot-Vassal and Cedric Seren within the Flight Dynamics and Control Systems department (Toulouse, France). Currently, I'm working on the subject of model approximation and the thesis I'm develloping is entitled Large-scale and infinite dimensional dynamical model approximation. It deals with the H_2 model approximation problem when the reduced order model has a time-delay structure.

Brief description of my work:

My work addresses the H_2 model reduction techniques using interpolation-based approaches and its application to infinite-dimensional models, especially to time-delay systems. The main focus is, on one hand, to find new applications of those model approximation techniques for the control, analysis and, on the other hand, to develop new model reduction techniques for reduced order models with richer structures. I believe that the originality of this work lies in combining and developing new results from the fields of model approximation and time-delay systems. Click here for a brief resume of my thesis.

Research interest

Education

2013 -2016 (in progress) PhD student at ISAE/Onera
"Large-scale and infinite dimensional dynamical model approximation" under the supervision of Charles Poussot-Vassal and Cedric Seren
2012 -2013 MSc ATSI-Automatics and Signal
Speciality: control theory. Final thesis: "Approximation de modeles de grande dimension sans realisation" under the supervision of Charles Poussot-Vassal and Pierre Vuilemin
2012 -2013 ISAE/Supaero
Double engenner degree. Speciality: control and aeronautic systems.
2010 -2012 Ecole Polytechnique
Engineer Polytechnicien Program. Speciality: engineering sciences and applied mathematics. Final thesis: optimal transfer in magnetic resonance under the supervision of Ugo Boscain and Yacine Chitour.
2007 -2009 University of Sao Paulo (USP)
Undergrad in Molecular Sciences. Scientific initiation project in mathematical methods in fluid mechanics advised by Jose A. P. Aranha.

Scholarships and Awards


Publications and Talks

Journal papers

PONTES DUFF I., POUSSOT-VASSAL C., SEREN C., VUILLEMIN, P. "Optimal H2 model approximation based on multiple input/output delays systems," in progress.

POUSSOT-VASSAL C., SEREN C., PONTES DUFF I., VUILLEMIN, P. "Optimal H2 model approximation based on multiple input/output delays systems," in progress.

PONTES DUFF I., POUSSOT-VASSAL C., SEREN C., "Optimal H2 model approximation based on multiple input/output delays systems," submitted. [ARXIV]

Conference papers

VIOLENE, PONTES DUFF I., POUSSOT-VASSAL C., SEREN C., "FLUID..," in Proceedings of the 54th IEEE Conference on Decision and Control (CDC), Osaka, 2015, pp. 4662-4667. [doi] , [ARXIV]

PONTES DUFF I., GUGERCIN, BEATTIE, POUSSOT-VASSAL C., SEREN C., "SINGLE DELAY SISO," accepted for the 6th IFAC TDS Istanbul. [doi] ,

PONTES DUFF I., POUSSOT-VASSAL C., SEREN C., "Realization independent single time-delay dynamical model interpolation and H2-optimal approximation," in Proceedings of the 54th IEEE Conference on Decision and Control (CDC), Osaka, 2015, pp. 4662-4667. [doi] , [ARXIV]

PONTES DUFF I.,VUILLEMIN P., POUSSOT-VASSAL C., SEREN C., BRIAT C., "Approximation of stability regions for large-scale time-delay systems using model reduction techniques," in Proceedings of the European Control Conference (ECC), 2015 European, Linz, 2015, pp. 356-361. [doi]

PONTES DUFF I.,VUILLEMIN P., POUSSOT-VASSAL C., SEREN C., BRIAT C., "Stability and Performance Analysis of a Large-Scale Anti-Vibration Control Subject to Delays Using Model Reduction Techniques," in Proceedings of the EuroGNC'15, Toulouse, France, April, 2015. [doi]

Book chapter

PONTES DUFF I.,VUILLEMIN P., POUSSOT-VASSAL C., SEREN C., BRIAT C. "Chapter 3: Model reduction for norm approximation: An application to large-scale time-delay systems," n Springer - Delays and Networked Control Systems, Volume 6 of the series Advances in Delays and Dynamics pp. 37-55. [doi]

Talks

2nd Workshop Delay Systems, LAAS, Toulouse, France, "Model reduction for norm approximation", Oct. 2013.

Oct. 2014, 3nd Workshop Delay Systems, GIPSA lab, Grenoble, France, "Model reduction of time-delay systems and stability charts", Oct. 2014.

GT MOSAR, Onera, Toulouse, France, "Model approximation of infinite dimensional systems", Nov. 2014.

Matrix Computation Seminar, VirginiaTech, Blacksburg, USA, "H2 model approxi- mation, interpolation and time-delay systems", Oct. 2015

SIAM Student Chapter, VirginiaTech, Blacksburg, USA, "H2 model approximation, stability charts and time-delay systems", Nov. 2015.

Teaching

Teacher assistant at INSA: Continuous Linear Systems (3rd year), Control laboratory (2nd year-15h), Control systems (4rd year), approximatively 100hs, 2014-2016.

Teacher assistant at ISAE/Supaero: Control systems (4rd year), approximatively 40hs, 2014-2016.

Teacher assistant at EDSYS: Short course on model reduction (PhD students), approximatively 20hs, May, 2016.