混沌

The so-call'exportable equation'is found by nonlinear geometry method for general non-autonomous chaotic control systems which coefficient matrix of control term is functional matrix contained system variables. The homeomorphic transformation of coordinate is found under specified conditions, the coefficient matrix of control term can be transformed as constant matrix, the synchronization among chaotic systems can be realized by common control methods.

针对一般的非自治混沌控制系统中控制项系数矩阵是含有系统变量的函数矩阵，利用非线性几何线性化的方法找出所谓的"输出方程"，在一定的条件下求出坐标的同胚变换，将控制项系数矩阵变换为常矩阵，然后利用常规的控制方法进行混沌系统之间的同步化。

By measuring the distance between the stable manifold and the unstable manifold of the hyperbolic fixed point in the Poincare map, it is shown whether the system has transversaUy homoclinicpoints and chaos in the sense of Smale horseshoes.

Melnikov方法是用来判定一个系统是否存在Smale马蹄意义下的混沌的一种有效的数学方法，它通过测量Poincare映射的双曲不动点的稳定流形与不稳定流形之间的距离来判定系统横截同宿点的存在性及Smale马蹄意义下的混沌的存在性。

A discrete Logistic model was applied to icefish populations analyzing and simulating the variation of the annual catchment production of icefish populations for four typical lakes/reservoirs such as Dianchi lake in China, it was found as evidence of chaos in a natural eco-system that the parameters of icefish populations for four lakes/reservoirs fall into chaotic region under normal circumstance.

将离散Logistic模型应用于银鱼种群数量变动研究，通过对滇池等4个典型湖泊或水库的银鱼年产量变动的初步分析和模拟，发现所有的湖泊或水库银鱼产量的参数值都落入了混沌区间，在自然生态系统中找到了混沌行为的证据。

A delayed system as an infinite dimensional system can perform hyperchaotic behavior, which makes the signals hard to decipher, and new research area is developed.

而时延系统作为无穷维的系统，简单的时延系统就能够产生超混沌的特性，大大增加了破译的难度，从而开辟了混沌同步保密研究的新方向。

Aiming at such kind of 0-1 integer programming problem,a chaotic searching algorithm is proposed to solve it.

针对该类0-1整数规划问题，给出一种基于混沌搜索的求解算法，该算法让多个独立的混沌变量在其各自的轨道中搜索，使得对应生成的0-1矩阵能遍历任意一种可能的分布，从而能搜索到全局最优解。

By using the perturbed chaotic solution we investigate the new type of Melnikov chaotic regions,which depend on an integration constant co determined by the boundary conditions.

利用微扰的混沌解，我们得到一种新型的Melnikov混沌区域，它与由边界条件决定的积分常数c_0密切相关。

By means of interconnecting some such units, a fully interconnected network that has complex chaotic feature is proposed.

在上面两种方法的基础上，我们又提出一种以具有单映射特征的神经网络作为混沌单元，由多个这样的单元构成的具有复杂混沌特征的全互连网络。

This kind of sequences has very high frequency, it also has better characteristic of autocorrelation and intercorrelation. It present a new kind of selecting scheme for spread-spectrum communication.

在本文的最后，我们将讨论一种基于蔡氏电路的混沌扩频序列，这种混沌扩频序列可以做到很高序列脉冲频率，同时它同样具有良好的自相关特性和互相关特性，它为扩频通信提供了一种新的序列选择方案。

In this thesis,we will focus on the study of the syn-chronous chaos and on-off intermittency in coupled oscillator systems.Weobserve rich phenomena and find mechanisms underlying these phenomena.

在本文中，我们重点以耦合混沌振子系统为研究对象，在理论分析和数值计算的基础上，研究各种丰富的混沌同步及开关阵发现象，揭示其内在的规律性。

The fuzzy neural network is used to identify the dynamics of the system to be controlled, the trained fuzzy neural network is used in the inverse system method for chaos control and chaotifying control.

采用模糊神经网络洲触被控系统的动态特性，将训练好的神经网络应用于逆系统方法中，实现了混沌系统的控制和混沌化控制。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。