Open AccessDesign and applications of interval observers for uncertain dynamical systems
Author(s) -
Khan Awais,
Xie Wei,
Zhang Langwen,
Liu LongWen
Publication year - 2020
Publication title -
iet circuits, devices and systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 49
eISSN - 1751-8598
pISSN - 1751-858X
DOI - 10.1049/iet-cds.2020.0004
Subject(s) - observer (physics) , bounded function , interval (graph theory) , control theory (sociology) , interval arithmetic , computer science , state vector , mathematics , dynamical systems theory , mathematical optimization , control engineering , control (management) , artificial intelligence , engineering , mathematical analysis , physics , combinatorics , quantum mechanics , classical mechanics
Interval observer design and related techniques have been researched and applied in many engineering fields and continue to be an active research area in the estimation and control society for the last two decades. An Interval observer is a special class of observers that generates a bounded interval vector for the real state vector in a guaranteed way under the assumption that the uncertainties are unknown but bounded. Some of the basic concepts and the main developments in the designs and applications of interval observer for continuous‐time, discrete‐time (linear and non‐linear), fuzzy and switched systems are reviewed in this work. It also provides a brief discussion of the main approaches in this area with clear descriptions of their structures and future directions.