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Observer-based control design for a class of nonlinear systems subject to unknown inputs: LMI approach (2015)
Conference Proceeding
Delshad, S. S., S. Delshad, I., Gustafsson, T., Karimi, H. R., & Zemouche, A. (2015). Observer-based control design for a class of nonlinear systems subject to unknown inputs: LMI approach. https://doi.org/10.1109/ICCAS.2015.7364768

© 2015 Institute of Control, Robotics and Systems - ICROS. This paper deals with the problem of observer-based controller design for a class of nonlinear systems subject to unknown inputs. A novel method is presented to design a controller using esti... Read More about Observer-based control design for a class of nonlinear systems subject to unknown inputs: LMI approach.

Robust state estimation and unknown inputs reconstruction for a class of nonlinear systems: Multiobjective approach (2015)
Journal Article
Delshad, S. S., S. Delshad, I., Johansson, A., Darouach, M., & Gustafsson, T. (2016). Robust state estimation and unknown inputs reconstruction for a class of nonlinear systems: Multiobjective approach. Automatica, 64, 1-7. https://doi.org/10.1016/j.automatica.2015.10.051

© 2015 Elsevier Ltd. We consider a novel method to design H∞ observers for a class of uncertain nonlinear systems subject to unknown inputs. First, the main system dynamics are rewritten as an augmented system with state vector including both the sta... Read More about Robust state estimation and unknown inputs reconstruction for a class of nonlinear systems: Multiobjective approach.

H<inf>∞</inf> observer design for uncertain nonlinear discrete-time systems with time-delay: LMI optimization approach (2014)
Journal Article
Sayyaddelshad, S., S. Delshad, I., & Gustafsson, T. (2015). H<inf>∞</inf> observer design for uncertain nonlinear discrete-time systems with time-delay: LMI optimization approach. International Journal of Robust and Nonlinear Control, 25(10), 1514-1527. https://doi.org/10.1002/rnc.3155

Copyright © 2014 John Wiley & Sons, Ltd. We present a robust H∞ observer for a class of nonlinear discrete-time systems. The class under study includes an unknown time-varying delay limited by upper and lower bounds, as well as time-varying paramet... Read More about H<inf>∞</inf> observer design for uncertain nonlinear discrete-time systems with time-delay: LMI optimization approach.

Observer design for a class of nonlinear systems subject to unknown inputs (2014)
Conference Proceeding
Sayyaddelshad, S., S. Delshad, I., & Gustafsson, T. (2014). Observer design for a class of nonlinear systems subject to unknown inputs. https://doi.org/10.1109/ECC.2014.6862555

© 2014 EUCA. We consider a novel method to design an observer for a class of nonlinear discrete-time systems with unknown inputs. Based on Lyapunov functional, we derive a sufficient condition for existence of the designed observer which requires sol... Read More about Observer design for a class of nonlinear systems subject to unknown inputs.