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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
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BA1
无标度网络的matlab生成代码，希望对大家有用(Scale-free networks, matlab generate code and hope for all of us)
- 2010-03-09 08:27:00下载
- 积分：1
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1
说明： 经典教材，美国人普艾克编著，非常实用的数字信号处理书(Classic textbook, edited by American Pu Yike, very practical book of digital signal processing)
- 2011-12-10 10:11:42下载
- 积分：1
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Study-of-solar-photovoltaic
首先,概述了太阳能光伏发电系统的组成,介绍了目前我国太阳能光伏发电技术的应用,并根据不同场合的需要,对太阳能光伏发电系统进行了分类。其次,分析了太阳能电池板的工作原理,利用州哄JLAB仿真软件对不同环境及
不同日照强度下的太阳能电池输出特性进行了建模!仿真结果证明了太阳能电池的非线性。再次,通过比较三种常用的DC/DC变换器的工作原理,提出利用BOOST型DqDC变换器实现转换,对参数进行分析后建立了BOOST型DC/DC变换器的仿真模型。最后,分析了最大功率点跟踪原理,比较了几种常用的最大功率点跟踪方法,
并在此基础上提出了一种新的扰动观察法,仿真结果表明了此方法的可行性。
(First, an overview of the composition of the solar photovoltaic power generation system, introduced the application of solar photovoltaic technology at present, and according to the needs of different occasions, for the solar photovoltaic system are classified. Secondly, the working principle of solar panels, the use of state coax JLAB simulation software for solar cell output characteristics of the different environments and under different sunlight intensity were modeled! Simulation results show that the nonlinear solar cells. Again, by comparing three common DC/DC converter works proposed use BOOST type DqDC converter to achieve the conversion, after the analysis of the parameters, the simulation model BOOST type DC/DC converter. Finally, the principle of maximum power point tracking, comparing several commonly used method for maximum power point tracking, and on this basis, we propose a new disturbance observation, simulation results show the feasibility of this method.)
- 2015-09-10 15:59:33下载
- 积分：1
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SFH_DPSK
高速跳频，调制样式为DPSK(DPSK/FH)，包括信号的发射接收模型，自己写的代码，仅供参考。(High-speed frequency hopping, modulation pattern for DPSK (DPSK/FH), including the launch of signal reception model, write your own code, for reference purposes only.)
- 2008-01-11 20:22:47下载
- 积分：1
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pointers-01.00.05
MATLAB的库提供了一个指针的指针和MATLAB的数据结构实现(MATLAB Pointer Library provides an implemetation of pointers and data structures in MATLAB )
- 2009-11-23 16:34:07下载
- 积分：1
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3
说明： code of pendulum using pdi controller
- 2010-04-13 23:52:53下载
- 积分：1
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gtrack
说明： 在matlab 制作的图件中绘绘出鼠标的轨迹的小程序(In matlab graphs drawn painted pieces in the track of the mouse small program)
- 2008-11-02 15:50:06下载
- 积分：1
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ACELLUT.c
ACE Algorithm implementation. (language = c with interface to matlab).
- 2009-12-29 18:39:56下载
- 积分：1
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RoughSetReduct_Sln
基于粗糙集的模糊分类模型的MATLAB代码。可用(MATLAB code based on fuzzy rough set classification model. Available)
- 2015-01-10 15:35:31下载
- 积分：1
