qpsk_sy

说明：  这个是利用图像分解和Logistics混沌序列可以对图像先进行加密然后进行隐藏在另一个图像中再进行解密(This is the use of image decomposition and Logistics chaotic sequence can be encrypted on the image first and then proceed to hide in another image and then decrypt)

Matlab编程实现似然比测量距离，用于语音识别模块的小程序(Matlab programming likelihood ratio to measure the distance, voice recognition module for small programs)

gabor变换是非平稳信号处理的有效方法之一，在时频平面内可获得最佳划分(gabor transform one of the effective methods of non-stationary signal processing, get the best in the division of the frequency plane)

详细介绍了在MATLAB环境中，MAT文件的编辑与读写，通常使用load和save两个命令进行 MAT 文件的读和写(Described in detail in the MATLAB environment, MAT files editing and read and write, load and save commonly used two commands to read and write MAT files)

basic image processing

说明：  MATLAB语言精要及动态仿真工具SIMULINK(Essential MATLAB language and dynamic simulation tool SIMULINK)

Example of wavelet function Mexican hat, haar,

我写的一个小程序。用MATLAB自动生成任意维数和任意数量的数据，并且根据这些数据用一定的方法统计出这些点的概率密度。(I wrote a small program. MATLAB automatically generated using an arbitrary dimension and arbitrary amount of data, and based on these data in a certain way to the statistics of the probability density of these points.)

加窗离散傅立叶变换，用DFT对离散信号进行谱分析，通过选用不同的加窗函数来抑制信号截断造成的频谱泄漏(windowed discrete Fourier transform, DFT right discrete signal spectral analysis, the increase in the alternative window function to curb the disconnect signal leakage spectrum)

程序先进行卷积编码，然后进行viterbi译码，程序有纠错功能，中间出现误码，程序解码时会自动纠正(Convolution coding program first and then viterbi decoding program has error correction, the error appears in the middle, when the program will automatically correct decoding)