期刊
MATHEMATICAL PROBLEMS IN ENGINEERING
卷 2014, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2014/567898
关键词
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资金
- National Natural Science Foundation of China [60872040, 61104074]
- Fundamental Research Funds for the Central Universities [N100604007, N110417004, N110417005, N110617001]
- Ph.D. Start-up Foundation of Liaoning Province, China [20111001, 20100471462]
A new general and systematic coupling scheme is developed to achieve the modified projective synchronization (MPS) of different fractional-order systems under parameter mismatch via the Open-Plus-Closed-Loop (OPCL) control. Based on the stability theorem of linear fractional-order systems, some sufficient conditions for MPS are proposed. Two groups of numerical simulations on the incommensurate fraction-order system and commensurate fraction-order system are presented to justify the theoretical analysis. Due to the unpredictability of the scale factors and the use of fractional-order systems, the chaotic data from the MPS is selected to encrypt a plain image to obtain higher security. Simulation results show that our method is efficient with a large key space, high sensitivity to encryption keys, resistance to attack of differential attacks, and statistical analysis.
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