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Description: 自治系统的Poincare截面的matlab程序实现
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Size: 1354 |
Author: bensive |
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Description: 绘制庞加莱截面图,在相空间中适当（要有利于观察系统的运动特征和变化，如截面不能与轨线相切，更不能包含轨线）选取一截面，在此截面上某一对共轭变量如x1和x.1取固定值，称此截面为Poincare截面，相空间的连续轨迹与Poincare截面的交点成为截点。-mapping Poincare section, in phase space appropriate (observation system should be beneficial to the movement and change, if not with the section line tangent track, rail lines not included) selected a cross section, in this section for a pair of conjugate variables such as x1 and X.1 from fixed value, stating that this section of the Poincare section, phase space for the track and Poincare sections of the intersection as intercept point.
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Size: 1024 |
Author: 叶建槐 |
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Description: 这是一篇关于利用poincare指数来进行指纹识别的文章，对初学指纹识别的同学有较大的帮助。-This is a Poincare index on the use of fingerprints for identification of the article, Fingerprint Identification of a novice students have more help.
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Size: 359424 |
Author: 黄玉 |
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Description: 混沌映射庞加莱界面Matlab程序，程序虽小，短小精悍-Matlab interface Poincare mapping procedures, procedures may be small, short and pithy
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Size: 1024 |
Author: liuwei |
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Description: Poincare Index法提取指纹中心点-Poincare Index extraction fingerprint center
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Size: 86016 |
Author: caizhaowang |
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Description: 绘制庞加莱截面图
在相空间中适当（要有利于观察系统的运动特征和变化，如截面不能与轨线相切，更不能包含轨线）选取一截面，在此截面上某一对共轭变量如x1和x.1取固定值，称此截面为Poincare截面，相空间的连续轨迹与Poincare截面的交点成为截点。-Poincare mapping sections in the phase space properly (should be beneficial to observe the system and changes in movement characteristics, such as the cross-section can not be tangent trajectory, but also can not contain rail line) to select a cross-section, in this section for a total of conjugate variables, such as x1 and X.1 take a fixed value, call this cross-section for the Poincare section, the phase space of the continuous trajectory of the point of intersection with the Poincare cross-section to become cut-off point.
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Size: 1024 |
Author: fang ye |
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Description: 用matlab编程的计算各种混沌系统的lyapunov指数，很好用-Matlab program for calculating with a variety of chaotic systems lyapunov index, very good use
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Size: 32768 |
Author: 苏文胜 |
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Description: 自治系统的Poincare截面的matlab程序实现-Autonomous System Poincare cross-section of the matlab program
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Size: 1024 |
Author: bensive |
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Description: 提供一个求解庞加莱映射的方法，分享相关的程序，互相学习。-To provide a method of solving the Poincare mapping, sharing related procedures, learn from each other.
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Size: 249856 |
Author: 小猪 |
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Description: Poincare映射图像有不同的做法，一般是通过画出系统的Poincare映射图来看是否为混沌-Poincare map images are different approaches to the general through the draw system in terms of Poincare map for the chaotic
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Size: 2048 |
Author: julien716 |
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Description: Type Classification Code:
main.m (program control)
discretize.m (converts image to discrete values)
plotimg.m (plots images)
dirImg.m (computes the directional image)
extract.m (extracts square portion of image - called by dirImg)
slitSum.m (computes the slit sum direction - called by dirImg)
tileImg.m (tiles the image and computes new directions)
averImg.m (smoothes the image)
angleImg.m (computes the angles from the vector representation)
Poincare.m (computes the core-delta points)
temp.m (extracts the core-delta points and locations)
Correlation Code:
proj.m (program control)
plotimg.m (plots images)
discretize.m (converts image to discrete values)
normalize.m (normalizes images)
corrfft.m (computes the correlation)
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-Type Classification Code: main.m (program control) discretize.m (converts image to discrete values) plotimg.m (plots images) dirImg.m (computes the directional image) extract.m (extracts square portion of image- called by dirImg ) slitSum.m (computes the slit sum direction- called by dirImg) tileImg.m (tiles the image and computes new directions) averImg.m (smoothes the image) angleImg.m (computes the angles from the vector representation) Poincare.m (computes the core-delta points) temp.m (extracts the core-delta points and locations) Correlation Code: proj.m (program control) plotimg.m (plots images) discretize.m (converts image to discrete values) normalize. m (normalizes images) corrfft.m (computes the correlation )--------------------------------------------------------------------------------
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Size: 6144 |
Author: 小熊 |
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Description: 分形计算的几个程序原码，可用于康托集，求解非线性方程，分形树，分形维计算，庞加莱截面描述等功能，共19个程序或函数-Fractal several procedures for calculating the original code, can be used for Cantor sets, solving nonlinear equations, fractal tree, the fractal dimension, the Poincare cross-section describes the functions, a total of 19 procedures or functions
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Size: 12288 |
Author: jzhee_mail |
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Description: 基于Matlab对约瑟夫森结（Josephson Junction）RCSJ模型的交直流I-V特性及非线性混沌现象进行数值模拟。通过计算机数值模拟得到该模型的非线性微分方程数值解，研究了RCSJ模型中各参量对约瑟夫森结的影响，进而简要分析其I-V特性和非线性混沌现象的产生机理，绘制出约瑟夫森结的交直流I-V特性曲线、非线性微分方程的相图及因其高度非线性而引起的通过倍周期分岔和阵发性原理进入混沌状态的分岔图。还给出庞加莱截面及功率谱。-Matlab based on the Josephson junction (Josephson Junction) RCSJ model AC and DC IV characteristics and non-linear numerical simulation of chaotic phenomena. Through computer simulation model by the numerical solution of nonlinear differential equations to study the RCSJ model parameters on the impact of Josephson junction, and a brief analysis of the IV characteristics and the emergence of the phenomenon of non-linear chaotic mechanism, drawn Josephson junction IV characteristic curve of AC-DC, non-linear differential equations and the phase diagram because of its highly nonlinear arising through period-doubling bifurcation and chaotic state of paroxysmal principle of access to the bifurcation diagram. Poincare cross-section and was also given power spectrum.
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Size: 20865024 |
Author: Ellison |
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Description: 用于非线性时间序列分析的软件包。可用于计算：时间延迟重构，分形维数，互信息，Lyapunov指数，替代数据集，最近临点统计，回归时间，庞加莱截面，非线性预测-TSTOOL is a matlab software package for nonlinear time series analysis. TSTOOL can be used for computing: Time-delay reconstruction, Lyapunov exponents, Fractal dimensions, Mutual information, Surrogate data tests, Nearest neighbor statistics, Return times, Poincare sections, Nonlinear prediction.
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Size: 4571136 |
Author: 彭跃华 |
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Description: Duffing方程的Poincare截面Matlab程序实现-Duffing
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Size: 1024 |
Author: lizhuo |
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Description: 一个微分方程算例的位移曲线,相图,功率谱,庞加莱截面以及运动动画模拟程序-An example of a differential equation of the displacement curves, phase diagrams, power spectrum, Poincare section, as well as movement animation simulation program
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Size: 1024 |
Author: 曾志刚 |
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Description: 自治系统Poincare映射的计算方法，附有程序以及算例。运行庞加莱里面的“zhixing.m”文件即可。-Autonomous system Poincare mapping method of calculation with procedures and examples are given. Run Poincaré inside zhixing.m files.
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Size: 1024 |
Author: 张博文 |
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Description: This simulink model simulates the damped driven pendulum, showing it s chaotic motion.
theta = angle of pendulum
omega = (d/dt)theta = angular velocity
Gamma(t) = gcos(phi) = Force
omega_d = (d/dt) phi
Gamma(t) = (d/dt)omega + omega/Q + sin(theta)
Play with the initial conditions (omega_0, theta_0, phi_0 = omega(t=0), theta(t=0), phi(t=0)) and the system parameters (g, Q, omega_d) and the solver parameters/method.
Chaos can be seen for Q=2, omega_d=w/3.
The program outputs to Matlab time, theta(time) & omega(time).
Plot the phase space via:
plot(mod(theta+pi, 2*pi)-pi, omega, . )
Plot the Poincare sections using:
t_P = (0:2*pi/omega_d:max(time))
plot(mod(spline(time, theta+pi, t_P), 2*pi)-pi, spline(time, omega, t_P), . )
System is described in:
"Fractal basin boundaries and intermittency in the driven damped pendulum"
E. G. Gwinn and R. M. Westervelt
PRA 33(6):4143 (1986)
-This simulink model simulates the damped driven pendulum, showing it s chaotic motion.
theta = angle of pendulum
omega = (d/dt)theta = angular velocity
Gamma(t) = gcos(phi) = Force
omega_d = (d/dt) phi
Gamma(t) = (d/dt)omega+ omega/Q+ sin(theta)
Play with the initial conditions (omega_0, theta_0, phi_0 = omega(t=0), theta(t=0), phi(t=0)) and the system parameters (g, Q, omega_d) and the solver parameters/method.
Chaos can be seen for Q=2, omega_d=w/3.
The program outputs to Matlab time, theta(time) & omega(time).
Plot the phase space via:
plot(mod(theta+pi, 2*pi)-pi, omega, . )
Plot the Poincare sections using:
t_P = (0:2*pi/omega_d:max(time))
plot(mod(spline(time, theta+pi, t_P), 2*pi)-pi, spline(time, omega, t_P), . )
System is described in:
"Fractal basin boundaries and intermittency in the driven damped pendulum"
E. G. Gwinn and R. M. Westervelt
PRA 33(6):4143 (1986)
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Size: 8192 |
Author: Mike Gao |
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Description: 通过非线性动力学中混沌研究的poincare图可以很方便的识别出周期，拟周期或者混沌运动，该程序实现了poincare图的绘制-Through the study of nonlinear dynamics in the chaotic poincare map can easily identify periodic, quasi-periodic or chaotic motion, the program achieved poincare mapping
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Size: 249856 |
Author: 赵长生 |
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Description: 此程序为matlab庞加莱截面程序，能够为非线性动力系统提供判断周期与概周期运动提供理论依据-This procedure for the Poincaré section matlab program that can provide decision period and almost periodic motion of nonlinear dynamic system provides a theoretical basis
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Size: 4096 |
Author: 董青山 |
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