In this study, a quantum-behaved particle swarm optimization (QPSO) based on hybrid evolution (HEQPSO) approach is proposed to estimate parameters of chaotic dynamic systems, in which the proposed HEQPSO algorithm combines the conceptions of genetic algorithm (GA) and adaptive annealing learning algorithm with the QPSO algorithm. That is, the mutation strategy in GA is used for conquering prema...

Synchronization of chaotic and Lu system has been done using the active sliding mode control strategy. Regarding the synchronization task as a control problem, fractional order mathematics is used to express the system and active sliding mode for synchronization. It has been shown that, not only the performance of the proposed method is satisfying with an acceptable level of control signal, but...

Video command and dispatch systems have become essential communication safeguard measures in circumstances of emergency rescue, epidemic prevention, control as, data security has especially important. After meeting the requirements voice video dispatch, this paper proposes an end-to-end encryption method multimedia information that introduces a multiple protection mechanism including selective ...

Two fractional chaotic maps, Lu and Chen have been analyzed using an innovative predictor-corrector method based on a non-uniform grid. An original law to control the grid size at each iteration has introduced. The choice of was shown play fundamental role obtain behavior for larger parameter range, while decreasing computational time. obtained results show that complexity resulting system in t...

The aim of our work is to obtain the analytic solutions for a new nonlinear anharmonic oscillator by means Optimal Homotopy Asymptotic Method (OHAM), using only one iteration. accuracy obtained results comes from comparison with corresponding numerical ones specified physical parameters. Moreover, OHAM method has greater degree flexibility than an iterative as presented in this paper. Based on ...

By introducing Colpitts oscillator as a chaotic system, this paper deals with back-stepping control method and investigates the restrictions and problems of the controller where non-existence of a suitable response in the presence of uncertainty is the most important problem to note. In this paper, the back-stepping sliding mode method is introduced as a robust method for controlling nonlinear ...

Chaos is embedded to the he Charged System Search (CSS) to solve practical optimization problems. To improve the ability of global search, different chaotic maps are introduced and three chaotic-CSS methods are developed. A comparison of these variants and the standard CSS demonstrates the superiority and suitability of the selected variants for practical civil optimization problems.

Efficient Communication over Additive White Gaussian Noise and Intersymbol Interference Channels Using Chaotic Sequences by Brian Chen B.S.E., University of Michigan (1994) Submitted to the Department of Electrical Engineering and Computer Science in partial fulfillment of the requirements for the degree of Master of Science in Electrical Engineering at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY...

The classical Lorenz system is a three-dimensional autonomous dynamical system with only two quadratic terms but displays very complex dynamical behaviors (see [Guckenheimer & Holmes, 1983; Lorenz, 1963]). With a similar structure, the recently discovered Chen’s system is of particular interest because of its complex topological structure and its duality to the Lorenz system (see [Chen & Ueta, ...