onda_finale_H

本代码讲了在matlab中实现数据的预处理的方法（包括标准化变化）等(The M codes describe how to pre-treat the datas in matlab (including the standardized convertion) etc.)

用MATLAB2008A编写的主成成分分析(MATLAB2008A prepared by Principal Component Analysis)

说明：  ofdm降低分均比的仿真，不吝指教，可能程序有疏漏之处，见谅

MATLAB编写矩阵数值分析，帮助学习矩阵和MATLAB编写(MATLAB numerical analysis of the preparation of Matrix，help studying matrix and writing matlab program)

it is overlap add method for signals

说明：  遗传算法的matlab程序，里面的函数内部有注释(Matlab genetic algorithm procedure)

一种用于烟雾检测的matlab例子，需要读取一段烟雾视频，然后运行程序会自动标识(matlab somke inspect)

BP神经网络之MATLAB程序的数学建模(BP neural network of the MATLAB mathematical modeling procedures)

基于自组织神经网络的矢量量化编码Ｍatlab程序(Based on self-organizing neural network vector quantization coding Matlab procedures)

PCA算法。PCA的目的是找到能够分离出最大方差的方向，所以首先求原来所有数据三个维度上的协方差，然后求这个协方差的特征值，最大特征值为第一个方向，从此以此类推。(PCA algorithm. The purpose of PCA is to find able to isolate the direction of maximum variance, so first find all the data in three dimensions on the original covariance, and then find the eigenvalues ​ ​ of the covariance, the biggest feature is the first in one direction, from and so on.)