Keypad

说明：  基于matlab的编程，信道仿真的，很好很强大(Matlab-based programming, channel simulation, very good very strong)

add sub bytes through incrypting image

NN with external data

K-Means Algorithm with x.mat to arrange items.

Code for synchronization research. You can make synchrogram from two phase data.

解算图像曲线的函数解析式。给一个图像，最后算出其近似描述葵式子。(The solver function resolution of the image curve type. To an image, and finally calculate the approximate description Kwai formula.)

可以提取一幅图中想要的目标，多抽样率信号处理，计算多重分形非趋势波动分析。( Target can be extracted in a picture you want, Multirate signal processing, Calculate the multifractal trend fluctuation analysis.)

用Matlab的GUI界面设计滤波器人机界面，可选FIR、IIR等高通，低通，带通，带阻滤波器，手动设定好参数，可直观看到幅频特性曲线和相频特性曲线。(Using Matlab GUI interface design a filter interface, optional FIR, IIR high pass, low pass, band pass, band stop filter, the parameters are set manually, you can visually see the amplitude-frequency characteristic and phase-frequency characteristic curve .)

将PEER中下载的地震波多行多列转换成加速度时程数据(try to process the sesmic wave)

说明：  文件里边是针对两个非线性、变系数、非齐次偏微分方程的求救方法(The content of the document is for two nonlinear, variable coefficient, inhomogeneous partial differential equation solution method)