velocity_analysis

矩阵联合对角化的ARD算法。超级经典。超级简单。超级好用。(ARD lization of the matrix algorithm. Super classic. Super simple. Super easy to use.)

乒乓球弹跳模型主程序，能够在仿真过程中动态显示球的坠落和反弹过程，在仿真过程结束后输出小球位移和速度的变化曲线！(Table bouncing model main program that can display dynamic simulation of the falling ball and the rebound process, after the end of the simulation output and speed of the ball displacement curve!)

说明：  （1）应用9×9的窗口对上述图象进行随机抽样，共抽样200块子图象； （2）将所有子图象按列相接变成一个81维的行向量； （3）对所有200个行向量进行KL变换，求出其对应的协方差矩阵的特征向量和特征值，按降序排列特征值以及所对应的特征向量； （4）选择前40个最大特征值所对应的特征向量作为主元，将原图象块向这40个特征向量上投影，所获得的投影系数就是这个子块的特征向量。 （5）求出所有子块的特征向量。 ((1) the application of 9 × 9 window of these images at random, a total sample of 200 sub-image (2) all sub-images according to out-phase into a 81-dimensional row vector (3) all 200 lines for KL transform vector, derived its corresponding covariance matrix of eigenvectors and eigenvalues, in descending order by eigenvalue and the corresponding eigenvector (4) a choice to 40 corresponding to the largest eigenvalue eigenvector as the PCA, the original image block to the 40 feature vectors on the projection, the projection coefficients obtained by this sub-block eigenvector. (5) calculated for all sub-block eigenvector.)

模态参数频域识别，是指在频率域内识别试验结构模态参数的方法。(The frequency domain modal parameter identification, is the recognition test in the frequency domain method of structural modal parameters.)

Short code to create shading around a mean. Input is a matrix with rows of observations

基于MATLAB环境下偏微分方程组的求解对应的代码 简单明了 便于初学者学习使用(Based on the MATLAB environment to solve partial differential equations corresponding code is simple for beginners to learn to use)

清华大学信号课程第二次实验，内容是基于傅立叶级数的信号分解以及双音频按键音合成(Tsinghua signal course the second experiment, the content is based on the Fourier series of two-tone signal decomposition and synthesis of key tone)

The research paper on the watermarking algorithms for compressed video MPEG-2

名义应力发估算疲劳循环次数，希望对你有所帮助，共同学习探讨(Nominal stress to estimates fatigue life cycles)

processing the signal which is chirp