VLSI-dsp-

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) )

数值积分计算各种方法的matlab程序，可作为数值分析等的学习工具。(Numerical integration to calculate the various methods matlab program, can be used as a learning tool of numerical analysis .)

Digital Modulation and Demodulation

Programa que calcula la sestabilidad e una estructura flotante

用切比雪夫I型原型通过冲 激响应不变法设计数字低通滤波器 并完成高通转换(Chebyshev type I with a prototype design by the same impulse response digital low-pass filter and a high pass completion of the conversion)

基于小波域隐马尔可夫模型的图像降噪，性能最好的图像降噪程序。 (Based on wavelet-domain Hidden Markov Model of image noise, the performance of the best image noise reduction procedures.)

超经典的ffmepg学习教程及示例代码！~~~(Ultra Classic ffmepg tutorials and sample code)

每个天线单元都由独立的移相开关控制，通过控制各天线单元发射的相位，就能合成不同相位波束。相控阵各天线单元发射的电磁波以干涉原理合成一个接近笔直的雷达主瓣，而旁瓣则是各天线单元的不均匀性而造成。(Each antenna unit is controlled by an independent phase shift switch. By controlling the phase transmitted by each antenna element, different phase beams can be synthesized. The electromagnetic wave emitted from each antenna unit of phased array generates a nearly straight radar main lobe based on the interference principle, while the sidelobe is caused by the heterogeneity of the antenna units.)

说明：  适用于一维EWT的变换文件，所有文件齐全，有测试文件，以及参数解释和帮助word文档，亲测可用。(For one-dimensional EWT transformation files, all the files are complete, there are test files, as well as parameter interpretation and help word documents, pro-test available.)

数值计算实践是我们必备的一门学科！这是我在学习之余利用MATLAB编写的程序，希望对大家有用！(Practice of numerical calculation is that we must have a subject! This is what I learn and use in the preparation of procedures for MATLAB, in the hope that useful!)