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实现数字音频效果的源程序，包含多速率信号处理的内插和抽取源程序。(realize the audio effect.inlude the function of multirate signal processing knowledge)

PCA ICA and LDA for Face-Recognition this document helps you understand the main idea in PCA ICA and LDA algorithms and their differences

自己编写的一维电磁波由自由空间进入损耗介质，全匹配环境下的传输.(I have written a one-dimensional electromagnetic waves from free space into a lossy medium, the whole match the transmission environment.)

kmeans聚类，用于时间序列无监督聚类(kmeans clustering for unsupervised clustering time series)

雷达在单部大功率干扰、多部分布式干扰情况下探测距离和暴露区的仿真(Radar simulation distance and exposed areas in a single portion of power interference, multiple distributed interference)

超速行驶是引起交通事故的主要原因之一，雷达测速仪是检测车辆超速行驶的有效方式之一。本代码用Matlab仿真实现多普勒雷达测速，在MATLAB仿真软件中对被检测车辆运动产生的多普勒频率进行频谱分析。(Speeding is one of the main causes a traffic accident, the radar gun is one effective way to detect speeding vehicles. The code using Matlab simulation Doppler radar gun, the vehicle motion is detected Doppler frequency spectrum analysis in MATLAB simulation software.)

实用的多小波工具箱 添加这些文件，以你的工作文件夹，并开始输入》multidemo 查看采取多小波变换对不同的图像，您也可以查看，编辑和使用任何其他文件提交在此文件夹中(Many practical wavelet toolbox to add the files to your working folder, and start typing " multidemo view taken by many wavelet transform of different images, you can also view, edit and use of any other documents submitted in this folder)

转置，就是一个转置，没有别的东西，还要说点什么！！！！(Transpose thank you very much！！！)

数字图像中心点的确定、定位、图像的裁剪、以及数字图像样本的输出等。(To determine the center of the digital image, positioning, image cropping, digital image sample output.)

利用matlab进行QAM的误码率仿真。利用ofdm技术。(Using matlab QAM BER simulation. Use ofdm technology.)