PSNR

grain detection used to detect the kind of grain

使用MATLAB实现的基于多类别的KNN算法，简称为MLKNN(Using MATLAB to achieve KNN algorithm based on multi-category, referred to as MLKNN)

用Higuchi方法计算时间序列或波形的分形维数。(Higuchi method to calculate the fractal dimension for time series or waveform)

此为《MATLAB教程》的第九章：稀疏矩阵。该书内容翔实，深入浅出，不可多得。(This is the MATLAB Guide in Chapter IX: sparse matrix. Book is informative, easy, hard to come by.)

生成dct基矩阵，傅里叶基矩阵，可用于压缩感知的基矩阵等(generate dct basis matrix,forier matrix,twhich can be used for CS theory)

matlab simulink bidirectional converter

LMS算法使用matlab语言实现仿真 用于自适应滤波器(LMS algorithm using matlab simulation language used to achieve adaptive filter)

最新的电力系统分析软件包 V2.1.8，包含了：PF-潮流计算；CPF-连续潮流；OPF-最优潮流；SSSA-小扰动分析；TDS-时域仿真；GUI-用户人机界面；GNE-自定义模型等功能。经过验证，该工具包已经可以计算上千节点规模的系统。而且该软件包源代码完全公开，因此用户可以根据自己的研究兴趣编写修改相应源代码实现研究目的。(The Power System Analysis Toolbox (PSAT) is a Matlab toolbox for electric power system analysis and simulation. )

这两天着迷goolge earth抓图，编写了一个拼图的程序，主要是用到了imread imwrite和对话框几个知识点，很简单的。(This two-day fascination with goolge earth drawings, prepared a puzzle procedures, mainly used in the dialog box imread imwrite and several knowledge points, very simple.)

PCA+SVM用于人脸识别，，很好用，，有详细注释(PCA+SVM for face recognition, and useful, detailed notes)