Title :
Hybrid synchronization of discrete-time hyperchaotic systems based on aggregation techniques for image encryption
Author_Institution :
Eng. Sci. & Tech. Dept., El Manar Preparatory Inst. for Eng. Studies, El Manar, Tunisia
Abstract :
Based on aggregation techniques associated with the arrow form matrix, to derive the stability property of dynamic discrete-time complex systems, a new strategy of control is formulated for chaos hybrid synchronization of two identical 3D Henon maps. The designed state feedback controller ensures that the state variables of both controlled hyperchaotic slave system globally synchronize, in hybrid manner, with the state variables of the hyperchaotic master system. Numerical simulations are carried out to assess the performance of the proposed contributions in the important field of image encryption and decryption through hyperchaotic hybrid synchronization phenomenon.
Keywords :
chaos; control system synthesis; cryptography; discrete time systems; image processing; large-scale systems; nonlinear control systems; numerical analysis; state feedback; synchronisation; aggregation techniques; arrow form matrix; controlled hyperchaotic slave system; dynamic discrete-time complex systems; hyperchaotic hybrid synchronization phenomenon; hyperchaotic master system; identical 3D Hénon maps; image decryption; image encryption; numerical simulation; stability property; state feedback controller design; state variables; Chaos; Computers; Cryptography; State feedback; Synchronization; Three-dimensional displays; Vectors; Aggregation Techniques; Arrow Form Matrix; Discrete-Time Hyperchaotic Systems; Hybrid Synchronization; Image Encryption;
Conference_Titel :
Sciences and Techniques of Automatic Control and Computer Engineering (STA), 2013 14th International Conference on
Conference_Location :
Sousse
Print_ISBN :
978-1-4799-2953-5
DOI :
10.1109/STA.2013.6783150
