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本文基于工程上广为应用的非线性观测器思想,设计了一种混沌通信系统的同步设计方法:针对最新提出的统一混沌系统模型,采用状态观测器同步理论,通过设计合适的状态观测器,研究了随机扰动存在的情况下的混沌系统同步问题。对本文所考虑的观测器,还可以通过改变的值来调整观测器的参数,以满足一定的性能指标要求,从而在实际上更具有应用价值。该方法无需计算同步的条件李亚普诺夫指数,而且对噪声有一定的鲁棒性。通过MATLAB 6.5仿真,表明了该方法的有效性。
In this paper, based on the idea of nonlinear observer widely used in engineering, a synchronous design method of chaotic communication system is designed. According to the newly proposed unified chaotic system model, by using the state observer synchronization theory, by designing suitable state observer, The synchronization problem of chaotic systems under stochastic disturbance is studied. For the observer considered in this paper, we can adjust the parameters of the observer by changing the value to meet certain performance requirements, which is actually more practical value. This method does not need to calculate the Lyapunov exponent of synchronization condition, and it is robust to noise. The simulation of MATLAB 6.5 shows the effectiveness of this method.