Absrtact: The calculation work of solving a fractional order differential system is huge since it relating to history.

摘 要： 由于分数阶微分系统具有记忆功能，在其求解过程中计算量较大。

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And the fractional -order chaotic system is very useful for security communication because it is a new chaotic system for its order is adjustable and the actual system usually is differential form.

另外，分数阶混沌系统是一类新型的混沌系统，其阶数可调使得它在复杂度上更优于整数阶混沌系统，同时，实际系统也通常以微分形式存在，因此分数阶混沌系统也很适用于保密通信。

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