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iteraciya3wtuki
M-ITERATION CLIPPING PAPR reduction for OFDM
- 2013-09-06 22:51:45下载
- 积分：1
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Affine-projection-algorithm
在有色输入下，仿射投影算法(APA)由于具有比最小均方(LMS)算法更快的收敛速度和比递归最小二乘(RLS)算法更低的复杂度而受到青睐。(The APA better improves the convergence rate compared with the LMS-type filters, especially in the case of coloured input signals.)
- 2016-05-22 11:34:31下载
- 积分：1
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isodata
基于matlab的isodata聚类算法的程序实现。(Clustering algorithm based on matlab' s isodata, program implementation)
- 2010-08-28 15:26:41下载
- 积分：1
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li9_23
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)...
*()
- 2010-10-17 21:53:14下载
- 积分：1
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powerflow
一个可运行的潮流计算程序，用牛顿拉弗逊法进行求解。(verry good!)
- 2011-09-10 18:01:38下载
- 积分：1
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zixiangguanhanshu2
该程序能够实现各种分布函数的自相关函数的计算(The program enables the calculation of the autocorrelation function of the various distribution functions)
- 2014-12-18 11:20:06下载
- 积分：1
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ColorHistogram
matlab实现的，基于HSV颜色空间的颜色特征提取程序(matlab achieve, HSV color space based on color feature extraction procedures)
- 2015-01-13 15:38:13下载
- 积分：1
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基于状态空间模型的预测控制程序
基于状态空间模型的预测控制程序，参考了钱积新的《预测控制》(Predictive control program based on state space model, refer to the Qian Jixin’
s predictive control )
- 2015-05-18 09:05:51下载
- 积分：1
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imratio
matlab 压缩率计算函数 用于计算压缩前后图像大小比值(matlab function of compression rate used to calculate the compression ratio before and after the image size)
- 2010-06-05 15:57:35下载
- 积分：1
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mmse
Program of publication
"Fast Channel Shortening with Polynomial Weighting Functions"
sub-pg_of_fig5and6
- 2010-12-08 03:08:20下载
- 积分：1
