BP

说明：  提供NMF程序，非负矩阵分解 用于人脸图像的表示(lnmf and nmf)

说明：  通带截止频率 =1000Hz，阻带截止频率 =1200Hz，采样频率fs=5000Hz，通带衰减系数 =0.3dB，阻带衰减系数 =40dB。(The digital filter are the digital signal processing important content, the digital filter may divide into IIR and the FIR two main kinds. As for the IIR digital filter design, we need the help of analog prototype filter, and then transform analog filter into digital filter. )

matlab code for PIVlab - time-resolved particle image velocimetry (PIV) tool

用vba程序遍历所有目录下的excel文件，把各文件中两列经度和纬度的内容合并，并插入新列。很好的高效率的遍历程序。(Vba program to traverse all excel file directory, each file merge the contents of two of the latitude and longitude, and insert a new column. Good high efficiency of the traversal process.)

差分方程求解 实验步骤： 主界面下进入实验五的“差分方程求解”子系统,输入希望看到的输出样点数 输入差分方程系数向量 输入顺序为：，。其中 N+1 为差分方程两边系数最大数目，如果有一边输入系数个数小于 N+1，将按不足系数为零计算。 输入系统初始状态向量 输入顺序为 鼠标单击确定按钮，以数值和图形两种方式显示单位冲激响应和输出响应 3） 确定差分方程形式：y(k)-y(k-1)+0.35y(k-2)=2x(k)-x(k-1)，(Experimental steps for solving differential equations: the main interface into five experimental " differential equation" subsystems, would like to see the output of input sample points difference equation coefficient of input vector input sequence as follows:,. One of N+1 differential equations for the maximum number of factors on both sides, if there is one less than the number of input coefficient of N+1, the calculation will be less than zero coefficient. Initial state vector input system for the importation of the order of the mouse button to click OK to both numerical and graphical display unit impulse response and output in response to 3) to determine the form of differential equation: y (k)-y (k-1)+0.35 y (k-2) = 2x (k)-x (k-1),)

这个程序可以自定义颜色选择框，因为matlab自带的uisetcolor在编译后的.exe中运行会导致窗口最小化，所以可以自定义颜色选择框(This procedure can customize the color selection box, because in uisetcolor built-in matlab compiled. Exe run will lead to minimized windows, so can customize the color selection box)

MATLAB数学工具箱,包含了MATLAB在工程数学应用中的函数及其用法(MATLAB Math Toolbox, MATLAB includes mathematical applications in engineering functions and their usage)

3G/B3G核心技术丛书-mimo关键技术，王裕民编 附录的源程序(ofdm mimo simulation)

说明：  基于matlab的RELSK增广最小二乘算法辨识程序(Matlab-based algorithm for identification RELSK extended least squares program)

离散小波变换，包括各层分解，消除了边界效应等问题(DWT，including every layer)