【摘要】 提出了一个五阶自治混沌电路 ,基于电路建模与数值计算仿真对其混沌动力学性态和频谱分布特征进行了较详尽的研究。研究结果表明该电路在某些元件参数范围内 ,能够产生具有两个正性Lyapunov指数的超混沌信号 ,呈现出复杂的混沌动力学行为 ,将其用于保密通信 ,密文的抗破译强度会有较大的提高。更多还原

【Abstract】 A fifth-order autonomous chaotic circuit is designed by adding a RLC parallel circuit in chua’s circuit .Its chaotic dynamic character and spectrum distributing character are studied thoroughly by the way of mathematical model and simulation. The results indicate that this circuit can generate hyperchaotic signals with two positive Lyapunov exponents and demonstrate more complicated chaotic behaviors in some parameter ranges. If it is applied to secure communication, the security will be improved in large extent.更多还原