MAHAFZA

：滤波 fs=400 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=5 时间窗大小 t=0:ts:T (hf1=zeros(1,N) hf1(f<=B1&f>=-B1)=1 y1=hf1.*fftshift(y) figure subplot(211) plot(f,abs(fftshift(y))/N,f,hf1, r-- ) axis([-fs/2,fs/2,0,1.2]) title( 原信号频谱 ) xlabel( f /Hz ) subplot(212) plot(f,abs(y1)/N) title( 低通滤波，截止频率90Hz ) xlabel( f /Hz ))

this code source is avaible to lknkln,kln,

基于元胞自动机模拟的渗流集群，非常好的一个程序。。(Celluar automation-- PercolationCluster. It is a very excellent program..)

一个是用matlab实现指纹识别程序。里面附带指纹图片，并用其作为例子实现指纹图像的匹配。(One is to use matlab to achieve fingerprint identification procedure. Which comes with the fingerprint image, and use it as an example to achieve the matching fingerprint images.)

bpsk 调制uwb ，以便于初学者学习用，很不错的matlab程序(BPSK modulation UWB for beginners to learn to use, very good procedures Matlab)

基于Harris原理的亚像素角点坐标检测Matlab程序；直接运行click_calib .m文件即可获得亚像素级角点坐标，附录Ⅱ中的其它函数文件均会被click_calib .m文件调用。(Based on the principle of subpixel Harris corner coordinates detection Matlab procedures run directly click_calib. M file to obtain sub-pixel corner coordinates, Appendix Ⅱ other functions in the file will be click_calib. M file called.)

image fusion using particle of swarm optimastion

包括数据分析、绘图等等,这个有中文注释，看得明白，对信号进行频谱分析及滤波，IMC-PID是利用内模控制原理来对PID参数进行计算，分析了该信号的时域、频域、倒谱，循环谱等,基于互功率谱的时延估计。( Data analysis, plotting, etc., The Chinese have a comment, understand it, The signal spectral analysis and filtering, The IMC- PID is using the internal model control principle for PID parameters is calculated, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Based on the time delay estimation of power spectrum.)

BPSK调制在瑞利信道下的性能仿真分析，可运行(BPSK and rayleigh)

输入两幅图像，利用已经过修正的数值计算其PSNR值，经修正的指数值(input 2 pictures and culculate the PSNR of them (The correct one))