New-Text-Document-(3)

说明：  matlab应用在辅助优化及计算当中和一些应用实例(matlab optimization and calculation used in supporting them, and some application examples)

说明：  应用 FFT对信号进行频谱分析 1、在理论学习的基础上，通过本次实验，加深对快速傅里叶变换的理解，熟悉FFT 算法及 其程序的编写。 2、熟悉应用FFT 对典型信号进行频谱分析的方法。 3、了解应用 FFT 进行信号频谱分析过程中可能出现的问题，以便在实际中正确应用 FFT。 (Application of FFT spectrum analysis of signal 1, the theoretical foundation of learning, through this experiment, to deepen the understanding of the fast Fourier transform, familiar with the FFT algorithm and its procedures for the preparation. 2, familiar with the application of FFT on a typical signal spectrum analysis. 3, the understanding of application of FFT spectral analysis of signal problems that may arise in order to practice the correct application of FFT.)

说明：  MATLAB_stepper_motor_control.zip

Matlab/Simulink simulation module for WCDMA Spread and Modulation.

mathews数值分析书的源代码，用matlab编写，第一章第十四部分。(mathews numerical analysis of the book' s source code, using matlab, the first part of Chapter XIV.)

精细积分法用于结构动力学中，很好的方法，一般教材上没有(very important)

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) )

MATLAB 算法大全，找到的比较好的学习资料(MATLAB algorithms Daquan, found a better learning materials)

运用matlab编写的vwap投资策略，运用于机构投资者减小冲击成本(Vwap investment strategy by matlab)

说明：  文件实现在小波去噪，matlab下进行仿真实验(denosing with matlab)