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Chin. Phys. B, 2013, Vol. 22(12): 120505    DOI: 10.1088/1674-1056/22/12/120505
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Modified projective synchronization with complex scaling factors of uncertain real chaos and complex chaos

Zhang Fang-Fang (张芳芳), Liu Shu-Tang (刘树堂), Yu Wei-Yong (余卫勇)
College of Control Science and Engineering, Shandong University, Jinan 250061, China
Abstract  To increase the variety and security of communication, we present the definitions of modified projective synchronization with complex scaling factors (CMPS) of real chaotic systems and complex chaotic systems, where complex scaling factors establish a link between real chaos and complex chaos. Considering all situations of unknown parameters and pseudo-gradient condition, we design adaptive CMPS schemes based on the speed-gradient method for the real drive chaotic system and complex response chaotic system and for the complex drive chaotic system and the real response chaotic system, respectively. The convergence factors and dynamical control strength are added to regulate the convergence speed and increase robustness. Numerical simulations verify the feasibility and effectiveness of the presented schemes.
Keywords:  modified projective synchronization      complex scaling factors      complex chaotic systems      speed-gradient method  
Received:  19 February 2013      Revised:  23 April 2013      Accepted manuscript online: 
PACS:  05.45.Gg (Control of chaos, applications of chaos)  
  05.45.Xt (Synchronization; coupled oscillators)  
  05.45.Pq (Numerical simulations of chaotic systems)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61273088, 10971120, and 61001099) and the Natural Science Foundation of Shandong Province, China (Grant No. ZR2010FM010).
Corresponding Authors:  Zhang Fang-Fang     E-mail:  zhff4u@163.com

Cite this article: 

Zhang Fang-Fang (张芳芳), Liu Shu-Tang (刘树堂), Yu Wei-Yong (余卫勇) Modified projective synchronization with complex scaling factors of uncertain real chaos and complex chaos 2013 Chin. Phys. B 22 120505

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