-
ForcedPendulum
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)
)
- 2010-02-17 07:28:51下载
- 积分：1
-
ch7a
matlab中求解一维薛定谔方程中函数随时间的演化情况。(Selected to solve the one-dimensional Schrö dinger equation)
- 2011-07-10 17:34:58下载
- 积分：1
-
MATLABjiaocheng
本书包括MATLAB 7.0语言基础、基本应用、高级应用三部分。语言基础包括语言入门、程序设计基
础、矩阵线性代数算法实现；基本应用包括数据处理、数值计算、符号运算、图形处理；高级应用包括图形
用户界面编程、工具箱使用、模型使用、外部接口等。(This book includes MATLAB 7.0 language-based, basic applications, advanced applications of three parts. Introduction to basic language, including language, program design, the matrix linear algebra algorithms basic applications, including data processing, numerical computing, symbolic computation, graphics processing advanced applications, including graphical user interface programming, tool use, the model used, the external interface .)
- 2011-08-27 11:46:02下载
- 积分：1
-
DA变换及上变频
用matlab实现ofdm系统中的DA转换和上变频到射频载波上。(Using MATLAB to implement the DA conversion in the OFDM system and up conversion to the radio frequency carrier.)
- 2017-12-04 08:15:13下载
- 积分：1
-
blocks-0.1.1
说明： 国外牛人写得背景分割程序，供大家参考！………………(background)
- 2010-04-02 11:44:53下载
- 积分：1
-
mfnew
认知无线电频谱感知匹配滤波器检测仿真，选用FM信号，分析了虚警概率(Matched filter spectrum sensing cognitive radio simulation testing, the choice of FM signals, analysis of the probability of false alarm)
- 2011-05-12 22:12:45下载
- 积分：1
-
wavedec
用wavedec2()函数对b1,b2两幅图像进行小波分解, 采用’haar’小波, 尝试着分解到第二或第三级 融合两幅图像。(With wavedec2 () function b1, b2 two images using wavelet decomposition, using haar wavelet, trying to break into the second or third grade fusion of two images.)
- 2011-06-10 17:36:20下载
- 积分：1
-
chapter27
无导师学习神经网络的分类——矿井突水水源判别(No teacher learning neural network classification of mine water inrush water)
- 2014-08-19 20:43:30下载
- 积分：1
-
DPSK
本代码实现的是在实际情况下仿真DPSK调制信号在莱斯衰落信道下的各项性能分析(the code just for the DPSK signal of laisi)
- 2015-01-01 22:13:22下载
- 积分：1
-
uyfh5678
tipos de codigos para banco, caja fuerte, señ ales sinusoidales
- 2010-09-08 13:34:42下载
- 积分：1
