have-n_eff

模式识别问题最近邻算法的matlab实现，简单易懂(nearest neighbor pattern recognition algorithm to achieve the Matlab and easily understood)

PV Array very goog in usw

说明：  北京邮电大学通信原理升余弦滚降系统的源程序(Beijing University of Posts and Communication Theory Cosine system source code)

M=63 J=(M-1)/2 Wp=0.5*pi Ws=0.6*pi Np=100 Ns=100 weightp=1 weights=100 通带和阻带的加权系数 WpN=linspace(0,Wp,Np) WsN=linspace(Ws,pi-0.05,Ns) Wm=[WpN WsN] p=[ones(1,50),ones(1,50)/2] d=[p,zeros(1,Ns)] W=diag([weightp*ones(1,Np),weights*ones(1,Ns)]) C=cos(Wm*[0:J]) Q=diag(cos(Wm*0.5)) g=(W*Q*C)(W*d) g=g h=(g(J:-1:2)+g(J+1:-1:3))/4 h=[g(J+1)/4 h g(1)*0.5+g(2)/4] h=[h fliplr(h)] W=linspace(0,pi-0.1,512) H=freqz(h,1,W) plot(W/pi,20*log10(abs(H))) (filter design)

说明：  通过matlab代码，验证了带通采样定理的正确性(The bandpass sampling theorem is realized.)

simulation of machine synchrone

to evaluate the texture in a image

for converting image to LUV color space

谱分解（Spectral decomposition），是将矩阵分解为由其特征值和特征向量表示的矩阵之积的方法。(Spectral Decomposition , is the product of the matrix into the matrix method by eigenvalues and vector representation.)

一个非常简单而有趣的脚本M文件，用于实现一定的绘图功能(a very simple and interesting script M, used to achieve a certain graphics)