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ldpc码纠错程序，对传输过程的错误进行自动检错(LDPC code error correction procedures, on the transmission error for automatic error detection)

Sep protocol in wireles sensor network

Bluetooth Frequency Hoppinglkj

这是一个介绍Matlab使用的课件，其内容简单，适合初学者接触和学习Matlab。(This is an introduction to Matlab uses the courseware, their content is simple, suitable for beginners contacts and learning Matlab.)

中央空调系统风机混风模型，simulink模型(Central air-conditioning system fan mixing air model, simulink model)

Leach modified wireless sensor network(wsn)

八方向均值比例算子，对每个像素点取半径为r的矩阵，分成八个区域，计算均值比例，选取图像中的对比较为明显的区域(Mean proportion of the eight directions operator, a radius r of the matrix for each pixel is divided into eight regions, and calculate the mean ratio, the selected image of the more obvious contrast region)

This document contains a tutorial on Matlab with a principal components analysis for a set of face images as the theme

说明：  金融时间序列分析，常用的一些模型分析过程，此仅对ARIMA 做了一些参考(Do time-series.look for some progrom refer to time series of Finalcial data,espeically using ARIMA model.)

this file compute lag arrays