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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.