Results 51 to 60 of about 311 (152)

Chaos and Dynamic Behavior of the 4D Hyperchaotic Chen System via Variable-Order Fractional Derivatives

Mathematics
Fractional-order chaotic systems have received increasing attention over the past few years due to their ability to effectively model memory and complexity in nonlinear dynamics.
Athar I. Ahmed, Mohamed Elbadri, Abeer M. Alotaibi, Manahil A. M. Ashmaig, Mohammed E. Dafaalla, Ilhem Kadri   +5 more
doaj   +1 more source

Hybrid Chaos Synchronization of Hyperchaotic LIU And Hyperchaotic CHEN Systems by Active Nonlinear Control

International Journal of Computer Science, Engineering and Information Technology, 2011
This paper investigates the hybrid chaos synchronization of identical 4-D hyperchaotic Liu systems (2006), 4-D identical hyperchaotic Chen systems (2005) and hybrid synchronization of 4-D hyperchaotic Liu and hyperchaotic Chen systems. The hyperchaotic Liu system (Wang and Liu, 2005) and hyperchaotic Chen system (Li, Tang and Chen, 2006) are important ...
openaire   +2 more sources

2D compressed sensing of encrypted images based on complex‐valued measurement matrix

IET Image Processing, Volume 18, Issue 3, Page 572-588, 28 February 2024.
In order to enhance privacy by encrypting images before compressed transmission, this paper proposes a 2D compressed sensing scheme based on a hyperchaotic Lorenz system and complex‐valued Vandermonde measurement matrix. Simulation results demonstrate that the reconstruction performance of this scheme is highly superior to that of the encryption‐then ...
Yuqian Yan, Yue Wang, Linlin Xue, Weiwei Qiu, Zhongpeng Wang   +4 more
wiley   +1 more source

Image encryption algorithm based on hyperchaos and DNA coding

IET Image Processing, Volume 18, Issue 3, Page 627-649, 28 February 2024.
This paper proposes an image encryption algorithm based on hyperchaotic system and DNA encoding. The system uses the hyperchaotic Chen system to generate the initial key, and uses DNA encoding to encode, calculate, and decode the image to achieve functions such as pixel scrambling and diffusion within the image.
Lizong Li
wiley   +1 more source

The Multistage Homotopy Perturbation method for solving Hyperchaotic Chen system

Journal of Physics: Conference Series, 2017
Finding accurate and efficient methods for solving nonlinear hyper chaotic problems has long been an active research undertaking. Like the well-known Adomian decomposition method (ADM) and based on observations, it is hopeless to find HPM solutions of hyper chaotic systems valid globally in time.
M. S. H. Chowdhury, Nur Isnida Razali, Waqar Asrar, Zanariah Abdul Majid   +3 more
openaire   +1 more source

Stability and Synchronization of a Fractional‐Order Unified System with Complex Variables

Discrete Dynamics in Nature and Society, Volume 2024, Issue 1, 2024.
In this paper, a fractional‐order unified system with complex variables is proposed. Firstly, the basic properties of the system including the equilibrium points and symmetry are analyzed. Bifurcations of the system in commensurate‐order and incommensurate‐order cases are studied.
Yanyun Xie, Wenliang Cai, Jing Wang, Jesus M. Munoz-Pacheco   +3 more
wiley   +1 more source

Matrix and Inverse Matrix Projective Synchronization of Fractional‐Order Time‐Delay Chaotic Systems with Uncertainty

International Journal of Differential Equations, Volume 2024, Issue 1, 2024.
In the present article, the matrix projective synchronization (MPS) and the inverse matrix projective synchronization (IMPS) have been analyzed with fractional‐order chaotic systems with uncertain terms. First, we theoretically discussed both types of synchronizations.
Vijay K. Shukla, Mahesh C. Joshi, Prashant K. Mishra, İbrahim Avcı, Sina Etemad, Peiguang Wang   +5 more
wiley   +1 more source

Finite-Time Modified Function Projective Synchronization Between Different Fractional-Order Chaotic Systems Based on RBF Neural Network and Its Application to Image Encryption

Fractal and Fractional
This paper innovatively achieves finite-time modified function projection synchronization (MFPS) for different fractional-order chaotic systems. By leveraging the advantages of radial basis function (RBF) neural networks in nonlinear approximation, this ...
Ruihong Li, Huan Wang, Dongmei Huang
doaj   +1 more source

Adaptive Control and Synchronization of Hyperchaotic Chen System

International Journal of Information Technology Convergence and Services, 2011
The hyperchaotic Cai system (Wang, Cai, Miao and Tian, 2010) is one of the important paradigms of fourdimensional hyperchaotic systems. This paper investigates the adaptive control and synchronization of hyperchaotic Cai system with unknown parameters.
openaire   +2 more sources

PrivShield-CQ: A chaotic–quantum encryption framework with lightweight authentication for post-quantum secure consumer applications

Array
The rapid expansion of consumer technologies such as Internet of Things devices, smart home systems, and wearable electronics has created new security challenges, especially as quantum computing threatens traditional encryption methods.
Asia Othman Aljahdali
doaj   +1 more source