MATLAB_code

各程序所完成的具体功能均在文件注释部分中注明！(All procedures are completed in a specific function in the document specified Notes section!)

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC）(（Low Density Parity Check Code，LDPC）)

变压器油中溶解气体的故障诊断方法，即IEC三比值法。用Matlab 程序运用的结果进行整理而得到的约简后的故障诊断决策表(Dissolved gases in transformer oil fault diagnosis method, that is, three-ratio method IEC. Matlab program used to collate the results of the application obtained after reduction of the fault diagnosis decision table)

基于matlab的QPSK信号生成，已加噪。(QPSK signal generated)

Optimal output feedback controller

建立关于分数的类,并进行加减乘除等相关运算的C++代码 (Establishment of the scores of the class, and other related operations of addition, subtraction C++ code)

综合使用EViews（统计软件）与Matlab实现广义自回归条件异方差模型(GARCH)的模拟、估计与预测(Integrated use EViews (statistical software) and Matlab achieve generalized autoregressive conditional heteroskedasticity model simulations, estimates and projections)

说明：  3GPP LTE中下行链路信道模型仿真代码(3GPP LTE downlink channel model in the simulation code)

matlab要求编写函数，并画出图的matlab习题，供大家参考(prepared Matlab functions, and draws a plan of Matlab Exercise, for your reference! !)

现有的代数特征的抽取方法绝大多数采用一维的方法，即首先将图像转换为一维向量，再用主分量分析（PCA）,Fisher线性鉴别分析（LDA）,Fisherfaces式核主分量分析（KPCA）等方法抽取特征，然后用适合的分类器分类。针对一维方法维数过高，计算量大，协方差矩阵常常是奇异矩阵等不足，提出了二维的图像特征抽取方法，计算量小，协方差矩阵一般是可逆的，且识别率较高。(existing algebra feature extraction method using a majority of the peacekeepers, First images will be converted into one-dimensional vector, and then principal component analysis (PCA), Fisher Linear Discriminant Analysis (LDA), Fisherfaces audits principal component analysis (KPCA), and other selected characteristics, then use the appropriate classification for classification. Victoria against an excessive dimension method, calculation, covariance matrix is often inadequate singular matrix, a two-dimensional image feature extraction method, a small amount of covariance matrix is usually reversible, and the recognition rate higher.)