一个新的混沌模型及其硬件实现

该文提出了一个新的非线性动力学系统模型并对其进行了仿真研究,结果表明此模型具有正的李雅普诺夫指数,表现出时域伪随机性和连续的频谱,因而此模型是一个混沌发生器。由于它的线性子系统的条件李雅普诺夫指数均为负,因而是可同步子系统,能够用于混沌保密通信。该文还给出了此模型的两种分段线性电路实现方法。

A new chaos model with its hardware implementation

A new nonlinear dynamical model is presented and numerically studied. It is shown that the model has a positive Lyapunov exponent, it also has pseudo-random waveform and continuous power spectra, so it is a chaos generator. Since the conditional Lyapunov exponents of its linear subsystem are all negative, the linear subsystem is synchronizable and the new chaos generator can be used for chaotic communication. Two kinds of piecewise-linear circuit realization based on the model are given.