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Practical signal theory

matlab程序，可将matlab中计算的曲面保存为AutoCAD的脚本文件，导入AutoCAD中绘制相应曲面。(matlab program matlab calculate the surface to save the AutoCAD script file, import the corresponding surface is drawn in AutoCAD.)

球面波仿真，三维彩色图像生成，体现球面波传播的特性(spherical wave movie)

用Arnold矩阵变换进行图像置乱的加密算法及其源代码(By Arnold transform the matrix of image scrambling encryption algorithm and its source code)

说明：  有关noiselet的相关资料及matlab仿真，整理的很详细，内容比较完整。(some paper and matlab source code about noiselet)

扩频系统的MATLAB源代码,实现无线通信系统扩频的功能(spread spectrum systems MATLAB source code, wireless spread-spectrum communication system function)

这是关于dsttd自适应调制的非常好的一片文章(dsttd adaptive modulation on the article a very good)

portfolio optimization

some exemple of code matlab for some pictures

人脸识别，嘴部提取。人脸识别，嘴部提取。人脸识别，嘴部提取。(face mouth extraction face mouth extraction face mouth extraction)