混沌

An approach to controlling chaos with linear-quadratic regulator is proposed according to the idea of OGY method, which is based on the linear analysis and control of the dynamics of the system in a Poincare section with parameter perturbation.

从OGY方法的参数微扰混沌控制思想出发，提出了基于线性二次型最优调节器的混沌控制方法。

Control chaos ; targeting chaos ; optimal feedback control ; parameter perturbation

控制混沌；引导混沌；最优反馈控制；参数扰动

Such a chaotic attractor was obtained on the phase plane by numerical calculation.

运用数值计算的方法在相平面中得到系统的混沌吸引子，而后对这个混沌吸引子进行数值研究，发现它具有两方面的特征：①它是不连续边界象集的归宿；②具有分数维。

A new method is used to control chaos and hyperchaos in nonlinear system by phase space compression.

提出一种通过压缩非线性系统轨道的相空间实现混沌和超混沌控制的方法。

According to chaos theory, the phase space reconstruction of time series is performed.

根据混沌理论，研究了大坝系统及大坝观测时间序列的混沌性。

Phosgene fusion" of Western metaphysics is the "light" and the Chinese cultural tradition of "gas in the face of chaos after the impact showed how the performance of the integration of light and air only in an in-depth can be chaotic in the form of a new combination This integration is almost impossible!

光气融合"是对西方形而上学的"光"与中国文化传统的"气面对混沌冲击之后如何显现的表现，光与气的融合只有在是深入混沌中才可能以新的形式结合，这几乎是不可能的融合！

An efficent piecewise linear function model is presented, it can be used to analyze chaotic circuits with piecewise linear elements by the general circuit program PSPICE.

本文提出了一种用通用电路分析程序PSPICE对含分段线性元件的混沌电路的模拟方法，采用有效的分段线性函数模型对动态混沌电路进行分析。

A new simplified three-dimensional piecewise continuous autonomous system (a modified model of unified chaotic system) was introduced by replacing a quadratic nonlinear term in a unified chaotic system with a piecewise linear signum function.

通过用分段线性符号函数替换统一混沌系统中部分二次项，得到一个新分段连续的自治系统(称为统一混沌系统修改模型)。

Chaos circuit ; chaos-based secure communication ; Pohl resonator ; data collection

混沌电路；混沌加密通信；波耳共振仪；数据采集

As the inversion and compression attack includes the question relating to solving thepreimage from image of function, a subdivision algorithm for solving preimage of function withbounded derivative based on Lagrange mean value theorem is proposed firstly.

由于逆推压缩攻击方法涉及混沌映射的求逆，针对复杂混沌映射求逆困难的问题，运用拉格朗日中值定理，我们提出了求解导函数有界的函数原象的分割算法，给出了使分割算法计算复杂性上界达到最小的充分条件。

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。