七模类Lorenz系统的界估计及计算机仿真

摘要

The globally exponential attractive set and non-linear characteristic properties of seven-modes Lorenz-like chaotic system is further investigated by theoretical and simulative analysis. From symmetry, dissipation, the phase diagram, Poincare mapping diagram and bifurcation diagram show this chaotic system has rich dynamic behavior. The signal encryption technique based on this chaotic system is effective and practical, which provides a new selection source for informational encryption.%通过理论和数值模拟分析了一个七模类Lorenz混沌系统的非线性特性和全局指数吸引集.从对称性、耗散性、空间相图、Poincare映射图、分岔图等几个方面展示了系统具有丰富的动力学行为. 该混沌系统可以作为混沌加密通信的信号源以实现对信号进行加密,为信息加密提供了一种新的可能.