problemformulation

非线性动力系统中分叉图用来定性的表示系统行为的演化，本代码中ode1.m定义了一个经典的Lorenz系统，sode3.m对该系统计算并画出了参数敏感区的分叉图。(Nonlinear dynamic system bifurcation diagram used to express qualitative evolution of system behavior, the code defines a ode1.m classical Lorenz system, sode3.m of the system to calculate and draw the sensitive areas of the bifurcation parameter Fig.)

时频原子分解法的一些基本资料 基于MP算法 (matching pursuits with time-frequency dictionary )

程序代码说明 P0301：数字图像矩阵数据的显示及其傅立叶变换 P0302：二维离散余弦变换的图像压缩 P0303：采用灰度变换的方法增强图像的对比度 P0304：直方图均匀化 P0305：模拟图像受高斯白噪声和椒盐噪声的影响 P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308：图像的自适应魏纳滤波 P0309：运用5种不同的梯度增强法进行图像锐化 P0310：图像的高通滤波和掩模处理 P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理 P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理(Code Description P0301: digital image data display matrix and Fourier transform P0302: Two-dimensional discrete cosine transform image compression P0303: gray-scale transformation method using the contrast enhanced image P0304: Histogram of homogenization P0305: simulated images by Gaussian white noise and salt and pepper noise of P0306: two-dimensional median filter function medfilt2 on the image noise by filtering salt and pepper P0307: using MATLAB in the function filter2 noise on the image by mean filter P0308: Image Adaptive Weiner Filter P0309: the use of 5 different gradient enhanced image sharpening method P0310: the image of the high-pass filter and mask treatment P0311: Using Butterworth (Butterworth) low pass filter the image noise by smoothing P0312: Using Butterworth (Butterworth) high pass filter sharpening the image)

ldpc编译码包括生成矩阵算法，稀疏矩阵编码，概率译码等等(ldpc encode and encode)

此程序主要是提供了信号非线性分解的一种新方法，局部均值分解，程序运行完整，可以使用，可供初学者学习使用，模拟仿真。(This program is mainly provides a new kind of nonlinear signal decomposition method, the local mean decomposition, programs run is complete, you can use, for beginners learning to use, and simulation.)

铅酸蓄电池的三阶动力模型。可以完成充电和放点过程。跑起来有问题的请检查你的解法是不是采用默认的ode45或者步长太大。(The three order dynamic model of lead acid battery. Can complete charge and discharge point process. Running problems please check your solution is not using the default ode45 or step size too large.)

说明：  带约束算子的粒子群算法，用于matlab环境，对于搞研究的教师有很大帮助(Operator Constrained Particle Swarm Optimization for the matlab environment, engage in research for teachers are very helpful.)

说明：  用MATLAB编写的模拟退后程序，为通用模板，下载后修改即可使用。(Using MATLAB simulation back to prepare procedures for the generic template, modified to use after downloading.)

Image Enhancement uisng matlab

用于计算李雅普诺夫指数的混沌方程并且实现(Used to calculate the Lyapunov exponents of chaotic equation and achieve)