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The department ELEC of the Vrije Universiteit Brussel, Belgium, offers a PhD position in System Identification, focused on the identification of nonlinear systems.
Start: as soon as possible
Keywords: system identification, nonlinear system
We are looking for a candidate who will contribute to the development of nonlinear system identification methods. The candidate should have a strong background in mathematics, optimization, signal processing, system- and signal theory, and statistics. Candidates should have excellent English language skills, and they should be willingly to acquire basic knowledge of the Dutch language to facilitate the integration in our international team.
Who are we? What do we?
The major goal of the department ELEC (http://wwwtw.vub.ac.be/elec/) is the development of advanced measuring and modeling techniques for dynamic (non)linear systems. We apply the results in a wide range of application fields, covering:
- A very wide frequency range: from a few mHz (e.g. electrical machines) up to 50 GHz (microwave problems).
- A very wide application field: mechanical, electrical, acoustical, chemical, biomedical and biochemical, microwave and telecommunication fields. We have many intensive (inter)national collaborations to cover these applications.
To realize this long term goal, the department ELEC is organized in teams that all use the data driven modeling approach. The fundamental system identification aspects are studied in the identification team, and the results are applied, adapted, and extended in the other teams addressing the specific problems of each application field. This flexible structure results on the one hand in a continued renewing of the department giving flexibility and freedom to the individual members of the department to follow their own interests, while on the other hand we have a group of 30-40 researchers who share a common basis which stimulates strongly cross-fertilizations among the different teams.
Johan Schoukens obtained an Advanced ERC-grant to identify structured models for nonlinear systems. The PhD position fits in this project. We first give a brief description of the project, and next we specify the open position.
Today’s state-of-the art methods for system and control design are model based. The ever increasing demand for higher performance and efficiency pushes the systems in a nonlinear operation mode so that nonlinear models are required for their design and control. The model quality and the model building cost are becoming limiting factors for further technological developments.
To close the gap between the designers and the modelers we propose a fundamentally new approach to deliver highly structured nonlinear models meeting the designer’s needs. From a theoretical point of view, the major contribution is the development of a new nonlinear structured modeling framework. From a practical point of view, the new nonlinear modeling paradigm will become an enabling technology to further push the performance and efficiency of system and control design.
We follow a multiple approach to identify structured nonlinear models: 1)A bottom up approach that identifies complex block oriented models, including parallel and feedback structures. These models are highly structured from the start. 2) A top down approach in which we develop data driven structure revealing methods starting from initial unstructured nonlinear state space models. 3)An new dedicated experiment design strategy will be developed to retrieve the “best” models with the least experimental cost.
Nr of positions available : 3
Engineering - Control engineering
Early stage researcher or 0-4 yrs (Post graduate)
First Stage Researcher (R1)
To better plan and organise their stay in a foreign European country, researchers and their families can also benefit of the free and personalised assistance offered by the EURAXESS Services Centres, a network of more than 200 centres located in 40 different European countries.
Vrije Universiteit Brussel - ELEC
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