In this paper, a non-quadratic Lyapunov function is employed to reduce conservatism in a
nonlinear observer designed for a class of continuous-time Takagi–Sugeno fuzzy systems …

Interval observers provide an interval state estimate for system states that cannot be
measured directly at any moment. The core idea for the interval observer design is to …

Nonlinear positive systems are ubiquitous in practical applications. The constraint of positive
conditions makes the design of this system still quite challenging even for the existing …

This paper is concerned with the problem of the stability and stabilization for continuous-time
Takagi–Sugeno (T–S) fuzzy systems with time delay. A novel Lyapunov–Krasovskii …

Nonlinear positive control system can be found in many real-world applications but the
positivity requirements lead to challenges in system analysis and control design. In this …

This paper addresses the problems of robust adaptive sliding mode observer (SMO) design
and SMO-based sliding mode control (SMC) for TS fuzzy descriptor systems with time …

This paper presents a methodology to investigate the observer-based control for positive
nonlinear systems with unknown time delay through analyzing the stability and positivity of …

A feedback-type vaccination and treatment policy for a nonlinear susceptible–infected–
recovered (SIR) epidemic model involving uncertainties and disturbances is designed by …

In this paper, the conservatism source of the positivity and stability analysis results of
positive polynomial fuzzy-model-based (PPFMB) control system are studied. Also, in order to …

We propose a robust observer-based output-feedback (OBOF) controller design method for
the positive stabilization of discrete-time Takagi–Sugeno (T–S) fuzzy models subject to …