guihuawenti

convolution coding program using viterabi algorithm

Myplotyy plots different data sets with a common x-axis allowing for different y-axes in one figure. The properties of every curve can be adjusted indivually, such as linear or logarithmic scale, normal or reverse scale, confidence intervasl, colours, curve labeling

迭代加权最小二乘法（IRLS），用以恢复压缩采样后的信号(Iteratively Reweighted Least Squares Minimizaion for Sparse Recovery)

求解DEA　CCR BCC 超效率 matlab程序(Solve the DEACCR BCC super efficiency matlab program)

Matlab图形背景代码 包括导入数据、进度条、当前时间、主界面窗口设置等等。(Matlab codes of graphic background)

matlab的水波图案的的源代码，三维的，拿来玩的(matlab the wave pattern of the source code, three-dimensional, used to play)

EKF的效果需要有test来测验。test中给定了初值来验证EKF的滤波效果(EKF the test results need to test. Test were given to verify the initial value of the filtering effect of the EKF)

文档介绍利用matlab进行非线性曲线拟合时的例子以及所需函数(The document describes the non-linear curve fitting using matlab example, and the desired function)

语音去混响与去噪，使用matlab实现，可直接使用(dereverberation and denoise)

M=512 原图像长度 N=64 K=8 I=zeros(M,M) J=zeros(N,N) BLOCK=zeros(K,K) 显示原图像 I=imread( f:ceshiyuanshitu.bmp ) figure imshow(I) xlabel( 原始图像 ) 显示水印图像 J=imread( f:ceshilogistic_nuaa64.bmp ) figure imshow(J) xlabel( 水印图像 ) 嵌入水印 tem=1 for p=1:N for q=1:N x=(p-1)*K+1 y=(q-1)*K+1 BLOCK=I(x:x+K-1,y:y+K-1) BLOCK=dct2(BLOCK) if J(p,q)==0 a=-1 else a=1 end BLOCK(2,1)=BLOCK(2,1)*(1+a*0.01) BLOCK=idct2(BLOCK) I(x:x+K-1,y:y+K-1)=BLOCK end end 显示嵌入水印后的图像 figure imshow(I) xlabel( 嵌入水印后的图像 ) imwrite(I, f:ceshiembedded.bmp )