The goal of the interval observers is to deal with the large but bounded uncertainties and
disturbances by determining certain interval (upper and lower estimates) for the system …

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 …

This article deals with the problem of fault detection for discrete-time Lipschitz nonlinear
systems subject to a class of restricted frequency-domain specifications. We present a novel …

An iterative proportional-integral interval estimation strategy for linear discrete-time systems
is investigated in this article. A sequence iterative proportional-integral observer is built on …

When designing interval observers for switched systems, for simplicity, it is always assumed
that the switching signal of interval observers is synchronised with one of subsystems …

This article investigates fault detection (FD) for discrete-time T–S fuzzy systems via an
iterative interval estimation method. By means of system output and the iterative estimation …

This paper further investigates the design problem of the functional interval observer for
discrete-time systems with disturbances. Two methods are given to design functional interval …

An interval estimation method based on the reduced-order observer and peak-to-peak
analysis is proposed for continuous-time linear time-invariant systems with disturbance and …

This tutorial provides a comprehensive perspective on the study of zonotopic filtering for
nonlinear uncertain dynamical systems. Unlike stochastic methods that characterize the …

In this article, a novel unknown input interval observer (UIIO) is proposed for systems not
satisfying the relative degree condition. In interval estimation, estimation errors are required …