this paper presents a new control scheme for a class of nonlinear systems. in the proposed method, an adaptive neural network observer with rise feedback controller are applied to realize sensorless control scheme. this observer is tuned online and no exact information of nonlinear term of plant is required. so, this characteristic can compensate mismodeling phenomena. also, a new controller ca...

This paper introduces a robust adaptive sliding mode control to solve finite-time stability of the uncertain nonlinear systems with multiple inputs and outputs (MIMO). The proposed algorithm guarantees strict robustness fast convergence system trajectories zero in finite time under negative effects uncertainties and/or external disturbances. fundamental methodology is based on an improved modif...

The control of nonlinear chaotic systems with uncertainties is a challenging problem that has attracted the attention researchers in recent years. In this paper, we propose robust adaptive fuzzy fractional strategy for stabilizing uncertainties. proposed combined logic controller fractional-order calculus to accurately model system’s behavior and adapt real-time. was based on supervised sliding...

this paper proposes a hybrid control scheme for the synchronization of two chaotic duffing oscillator system, subject to uncertainties and external disturbances. the novelty of this scheme is that the linear quadratic regulation (lqr) control, sliding mode (sm) control and gaussian radial basis function neural network (grbfnn) control are combined to chaos synchronization with respect to extern...

The development of closed-loop circuit realizations chaotic synchronization and control is considered a promising aspect analog electronics. Therefore, this paper explores the use sigr function in implementation finite-time terminal sliding mode control. A CFOA-based proposed, whereby an Extended Exploration Grey Wolf Optimization method used to approximate non-integer powered transfer inside f...

In this paper introducing novel mathematical approach to reduce the computational effort of non-linear problems and the technique called as novel technique. In this paper solve the Duffing and Duffing-Holmes equations by using novel technique is described clearly. This method consists of decomposing a given differential equation in to linear, non-linear and remainder terms. The method has been ...

Chaotic motions of a Rayleigh-Duffing oscillator with periodically external and parametric excitations are investigated rigorously. Chaos arising from intersections of homoclinic orbits is analyzed with the Melnikov method. The critical curves separating the chaotic and non-chaotic regions are obtained. The chaotic feature on the system parameters is discussed. Chaotic dynamics are also compare...

Using a scalar driving signal, synchronization for a class of chaotic systems has been developed in this study. For chaotic systems characterized by nonlinearity, which depends only on the available output, a unified approach is developed by carefully extending the conventional adaptive observer design. For exactly known chaotic systems, an exponential convergence of synchronization is achieved...