FFT

matlab model file to simulate QAM modulation and demod.

steepest decent and LMS algorithm in adaptive filters

此文件是应用主元分析法进行故障信号处理的matlab语言，有很强的实用性，包括漂移故障，短路故障，开路故障等情况。(This file is the application of principal component analysis for fault signal processing matlab language, very practical, including drift fault, short circuit fault, open circuit failure.)

绘制高斯函数的2D，3D显示及其灰度显示(Draw Gaussian function 2D, 3D display and grayscale display)

这个是面部表情自动识别的源代码。它是基于Viola和Jones的面部检测算法和Gabor面部特征点的提取，然后使用训练过的神经网络来识别人脸表情。(This is the automatic recognition of facial expression source code. It is Viola and Jones face detection algorithms and Gabor facial feature point extraction, and then use the trained neural network based on facial expression recognition.)

说明：  网格码，主要是进行TCM码编制。希望对大家有用。(Grid code, mainly for the preparation of TCM codes. Hope to be useful.)

Algorithms for programmers ideas and source code

"introduction to the finite element method in electromagnetics"是一本特别好的FEM的入门书籍，源码已上载。 这本书才115页，但是把FEM讲的很细，读完之后再读金建明的书就特别容易了。(introduction to the finite element method in electromagnetics is a particularly good introductory FEM books, source code has been uploaded. This book is only 115, but the FEM stresses very small payment to read after reading the book Jianming particularly easy.)

基于YCbCr颜色空间的人脸分割程序，且对大量实验图片验证均有效(YCbCr color space based on face segmentation procedure, and the picture of a large number of experimental verification are valid)

stanford大学开发用于解优化问题的系统模型，可用于解压缩感知恢复算法：BP、DS等(the system modeldeveloped by stanford University is used for the solution of optimization problems, such as compressive sensing recovery algorithm: BP, DS)