BMDCP

2－d music算法是在一维music算法的基础上进行的一种算法，它是需要测的是方位角和俯仰角(Algorithm for 2-d music is music in the one-dimensional algorithm based on an algorithm, it is the need to measure the azimuth and pitch angle is)

clear all I=imread( lena.bmp ) figure imshow(I) I2=imrotate(I,-4, bilinear ) 逆时针旋转4度 figure imshow(I2) I3=fliplr(I) 垂直镜像 figure imshow(I3) I4=imresize(I,0.5, bilinear ) 缩小为原图的1/2 figure imshow(I4) A=double(I) 转换为double类型 计算7个不变矩 [nc,nr]=size(A) [x,y]=meshgrid(1:nr,1:nc) 得到网格 x=x(:) y=y(:) A=A(:) m.m00=sum(A) if m.m00==0 m.m00=eps end m.m10=sum(x.*A) m.m01=sum(y.*A) 计算均值 xmean=m.m10/m.m00 ymean=m.m01/m.m00 计算中心矩(li9_23.rar cm.cm00=m.m00 cm.cm02=(sum((y-ymean).^2.*A))/(m.m00^2) cm.cm03=(sum((y-ymean).^3.*A))/(m.m00^2.5) cm.cm11=(sum((x-xmean).*(y-ymean).*A))/(m.m00^2) cm.cm12=(sum((x-xmean).*(y-ymean).^2.*A))/(m.m00^2.5) cm.cm20=(sum((x-xmean).^2.*A))/(m.m00^2) cm.cm21=(sum((x-xmean).^2.*(y-ymean).*A))/(m.m00^2.5) cm.cm30=(sum((x-xmean).^3.*A))/(m.m00^2.5) im(1)=cm.cm20+cm.cm02 im(2)=(cm.cm20-cm.cm02)^2+4*cm.cm11^2 im(3)=(cm.cm30-3*cm.cm12)^2+(3*cm.cm21-cm.cm03)^2 im(4)=(cm.cm30+cm.cm12)^2+(cm.cm21+cm.cm03)^2 im(5)=(cm.cm30-3*cm.cm12)*(cm.cm30+cm.cm12)... *((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)... +(3*cm.cm21-cm.cm03)*(cm.cm21+cm.cm03)... +(3*(cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2) im(6)=(cm.cm20-cm.cm02)*((cm.cm30+cm.cm12)^2-(cm.cm21+cm.cm03)^2)... +4*cm.cm11*(cm.cm30+cm.cm12)*(cm.cm21+cm.cm03) im(7)=(3*cm.cm21-cm.cm03)*(cm.cm30+cm.cm12)... *((cm.cm30+cm.cm12)^2-3*(cm.cm21+cm.cm03)^2)... +(3*cm.cm12-cm.cm30)*(cm.cm21+cm.cm03)... *()

三维图形matlab实现,说明了个函数的用法，给出了结果(picture drawed by matlab)

求解输入矩阵的阶梯形式，仅供大家学习交流(Input matrix form for solving the ladder, only for them to learn from the exchange)

in this folder contains the Extract the files and to add the SIFT features.

瑞利分布信号直方图的产生已经仿真，已经调试通过。(Rayleigh distribution histogram has generated signal simulation, debugging has been passed.)

说明：  波达方向处理基础知识加算法程序，很适合新手使用(Basic knowledge and algorithm program of DOA processing)

基于直接扩频通信基础框架，在matlab程序下运行。基于直接扩频通信基础框架，在matlab程序下运行( Basic framework based on direct spread spectrum communication, running under matlab program. Basic framework based on direct spread spectrum communication, running under matlab program.)

implement onDraw and draw a rectangle in a random color with the name of the class.

本例利用小波分析检测信号中的奇异点并消除(Using wavelet analysis of signal singularity detection and elimination in)