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无线传感器经典算法，一种分层式的算法，有助于学习无线传感器。(Wireless sensor classical algorithm, a hierarchical algorithm, wireless sensor conducive to learning.)

说明：  matlab涉及到数据的导入的方法，用matlab做实验研究的同学可以下载看看！(the methods of adding datas into programms ,the dscription is very elebrate!!!)

用盲源分离的方法处理脑电信号!!!!!!!!!!!!!!!!!!!!!!!!!(Blind source separation method using EEG signal processing)

finding critical time in a power system

Processor Namespace Alias extends X S L T Element Processor Source Code for Andriod.

该代码实现了以2为因子的图像升采样和降采样功能。 降采样包括使用平滑滤波器(with using the averaging filter)和不使用平滑滤波器(without using the averaging filter)两种方法。 升采样包括像素点直接复制(pixel replication method)和线性插值(bilinear interpolatoin method)两种方法。 降采样方法和升采样方法共有4种组合。程序运行后，给出了一个原始图片和四个结果图片。 图片1.原始图片。 图片2.平滑滤波器降采样&像素点直接复制升采样。 图片3.平滑滤波器降采样&线性插值升采样。 图片4.不使用平滑滤波器降采样&像素点直接复制升采样。 图片5.不使用平滑滤波器降采样&线性插值升采样。 (The code to achieve a 2-factor image upsampling and downsampling function. Down-sampling (with using the averaging filter) and do not use smoothing filter (without using the averaging filter) are two ways to use the smoothing filter. Upsampling including the pixels copied directly (pixel replication method) and linear interpolation (bilinear interpolatoin method) two methods. Down-sampling method and liters a total of four combinations of sampling methods. The program is running, it shows a picture of an original picture and four results. Picture 1 original picture. Photo 2. Smoothing filter downsampling & the pixel directly copied liter sample. Photo 3. Smoothing filter downsampling & the linear interpolation liter sampling. Picture 4. Smoothing filter down-sampling & the pixels directly copied liter sampling. Picture 5. Use smoothing filter down-sampling & the linear interpolation liter sampling.)

小波包分析提取振动信号中的特征频率，二维声子晶体FDTD方法计算禁带宽度的例子,采用的是通用的平面波展开法。( Wavelet packet analysis to extract vibration signal characteristic frequency, Dimensional phononic crystals FDTD method calculation examples band gap, Using common plane wave expansion method.)

说明：  MATLAB图象处理命令大全，讲解比较仔细，相信对你一定会有很大的帮助的(MATLAB image processing command Daquan, to explain more carefully, I believe you will be of significant help)

about code sequence.

matlab中对GUI的操作，熟悉在GUI中控件的操作(matlab in the operation of the GUI, and familiar with the operation of the control in the GUI)