混沌

Characteristics of the Internet traffic data flow are studied based on the chaos theory. A phase space that is isometric with the network dynamic system is reconstructed by using the single variable time series of a network flow. Some parameters, such as the correlative dimension and the Lyapunov exponent are calculated,and the chaos characteristic is proved to exist in Internet traffic data flows. A neural network model is constructed based on radial basis function to forecast actual Internet traffic data flow.

摘 要：应用混沌理论，分析了网络流量，用单变量的网络流量时间序列重构与网络动力系统等距同构的相空间，进而计算了实际网络的关维数和Lyapunov指数，并证实了网络流量存在混沌特性；据此建立了基于径向基函数神经网络的模型，并对实际网络数据流进行了预测。

Base on the continuity of eigenvalues, an iterative method of choosing the parameters of controller is presented.

离散混沌系统的控制提出了一类离散时间混沌系统的控制方法，控制的目标为系统的不稳定周期轨道，利用特征值的连续性，讨论了控制参数选取的迭代方法。

The function can be even non-continuous, e.g., swath wave or jump function.

混沌控制中有一个特殊的领域，就是混沌系统的同步。

The luminescence power of semiconductor laser diode is tested after the radiator element of laser diode is made and the drive circuit is designed. Then, chaos mathematic model is introduced to produce deterministic class stochastic signal and C langrage program, which is based on the hardware circuit design of MSP430, is designed and on-line debugged to implement the dynamic stimulation effect and avoid the body adaptability with the duty cycle of chaos sequence. The duty cycle is adjusted and controlled to accomplish the reinforcing and reducing in moxibustion. At last, Average power of laser diode is tested under the conditions of different duty cycles and the waveforms are collected by applying virtual instrument.

在半导体激光器散热装置的特别制作及工作驱动电路的设计基础上，完成半导体激光器发光功率的测试，然后引入混沌数学模型方法来产生确定性的类随机信号，在 MSP430 单片机硬件电路设计的基础上，应用单片机 C语言进行程序设计并在线调试，实现传统灸法的动态刺激效果，采用混沌序列占空比信号消除人体适应性，调整和控制输出占空比的改变以达到灸疗的补泻手法的实现，最后对不同控制占空比情况下激光器输出的平均功率进行测试，完成工作波形的采集。

Appearance of chaotic motion of electrons is earlier than one of limit cycle and chaotic oscillation of the field.

电子混沌比场的极限环和混沌振荡出现要早。

Within the algorithm, a CNN that has a complex dynamical behavior and a piecewise linear chaotic map were used to drive CML model as to quickly generate spatio-temporal chaotic sequences, which would be bitwise XORed with original image later.

该算法用具有复杂动力学行为的CNN网络和分段线性混沌映射去驱动CML模型，以快速产生时空混沌序列，并与原始图像异或完成加密过程。

Therefore, there exist the problems of slow convergence speed and local optimum.

由于混沌具有其独特性质，如内随机性、遍历性和规律性，特别是混沌的遍历性特点可作为搜索过程中避免陷入局部极小的一种优化机制。

In this paper Lorenz chaotic system is analyzed so as to describe the chaos basic theory.

该文对Lorenz混沌系统进行分析，从中阐述了混沌的基本理论。

This analyzing method of the frequency characteristics of chaotic system is applicable to Lorenz chaotic system as well as other nonlinear systems.

该混沌系统频率特性的分析方法不仅对Lorenz混沌系统适用，而且也适用於其他非线性系统。

Take the Rossler chaos system and Lorenz chaos system for example , the validity of the method was also identified as well .

并以Rssler混沌系统和Lorenz混沌系统为例，验证了这种方法的有效性。

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。