frft

聚类分析技术已经广泛应用于基于内容的图象信息挖掘领域，该技术提高了图象检索的速度和质量。K-均值算法和自适应算法是两个典型的聚类分析算法()

这是一个基本的PCA方法实现人脸图像压缩与重建，可以非常快捷的将一些无法辨别的人脸图像进行快速的拼接。(This is a basic PCA method to achieve image compression and reconstruction of the face, can be very quick to identify the human face that can not be quickly spliced images.)

说明：  matlab使用的卡罗曼工具箱，经典源码(Kaluoman use of Matlab Toolbox, classic source)

This script shows the difference of using zero padding (GI) in the end of OFDM symbol and using cyclic prefix (CP).

This is predictive simulation file. It contations too many mdl files. and it has predictive+802.11a simulink. Thank you

很好的关于各种发电机、电动机的程序，该程序使用matlab编写的，含有simulink仿真程序，非常不错哦！(good examples！)

说明：  该书介绍了两大智能算法(遗传算法和粒子群算法)的具体应用和实例分析。(This book introduces the specific application and case analysis of two intelligent algorithms (genetic algorithm and particle swarm optimization algorithm).)

说明：  本程序运行需一个小时左右。优化准则是旁瓣电平最小。取栅格间距为lemda/2,阵元间距为栅格间距的整数倍。放阵元的位置放1，否则放0(This program should be running an hour or so. Rule of optimization is side-lobe level minimum. Take grid spacing for lemda/2, spacing for grid spacing array (integer times. Put the position of the array (put 1, otherwise put 0 )

关于小波去噪的算法，总结性比较好，非常全，对初学者非常适用。( Wavelet denoising algorithm, summary is better, very full, very suitable for beginners.)

归一化后截止频率为0.2的数字低通滤波器，并且能有效滤掉工频干扰，使心电信号有效表达信息。(The normalized digital low-pass filter with a cutoff frequency of 0.2, and can effectively filter out power frequency interference, so that the ECG signal can effectively express information.)