We introduce for the first time a fractional-order hyperchaotic economic system. In this
system, chaos generation depends upon the value of fractional-order. For certain fractional …

In this paper, we present a fuzzy PID control system as a combination of a fuzzy PID
controller and a fuzzy control process, which is represented by a fuzzy control differential …

This paper studies the issue of finite-time prescribed performance control for spacecraft
attitude tracking with inertia perturbations, external disturbances, actuator saturations and …

Nowadays, advances in different fields of technology have increased demands for reliable
controllers. Uncertainty and disturbances, which are inevitable in most real‐world systems …

This paper investigates the attitude tracking control problem of a rigid spacecraft subject to
inertial uncertainties, uncertain space perturbations and actuator saturation. Firstly, a static …

It is well known that the satellite attitude motion exhibits the chaotic phenomenon. This
article addresses the challenging problem of chaotic attitude synchronization and anti …

Since the variable-order fractional systems show more complex characteristics and more
degrees of freedom due to time-varying fractional derivatives, we introduce a variable-order …

In the present article, as a new approach, a fuzzy disturbance observer is combined with an
active controller for the synchronization of fractional-order time-delayed systems. Since the …

Today, four-dimensional chaotic systems are attracting considerable attention because of
their special characteristics. This paper presents a non-equilibrium four-dimensional chaotic …

Modern control algorithms based on artificial intelligence have shown good results in many
application fields. That is why some researchers have made an effort to introduce them in …