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Desktop22
convolutional code is a kind of code memory, in any given unit of time, the encoder output n this time not only with the elements of the k input, but also with the input m. Convolutional codes are usually stated as : (n, k, m)
- 2012-05-15 03:08:51下载
- 积分：1
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readuff
Allow to read UFF file (all format) in matlab
- 2013-08-29 22:38:58下载
- 积分：1
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HW_5
Generation of Binomial random variables from uniform random variable
- 2010-06-11 21:21:49下载
- 积分：1
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cooperative-spectrum-sensing
This is a program to describe cooperative spectrum sensing of Cognitive radio implemented in cognitive radio
- 2013-11-21 19:51:30下载
- 积分：1
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Region-growing-method
区域生长分割 matlab 手动点击设定种子点(Click on region growing segmentation matlab manual seed point set)
- 2011-06-21 21:20:36下载
- 积分：1
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datageneration
it is useful and helpful for my research work
- 2013-12-21 14:00:20下载
- 积分：1
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qiefou
使用大量的有限元法求解偏微分方程，阐述了负荷预测的应用研究,采用偏最小二乘法。( Using a large number of finite element method to solve partial differential equations, It describes the application of load forecasting, Partial least squares method.)
- 2016-05-31 11:42:32下载
- 积分：1
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L阵和线阵下二维DOA估计算法
说明： 基于MIMO雷达的MUSIC算法，寻找峰值对应目标角度(MUSIC algorithm based on MIMO radar to find the target angle corresponding to the peak value)
- 2020-03-04 11:15:03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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m_sequence
实现各阶本原多项式的小m序列的长生，通过改变本原多项式的生成矩阵可以产生想要的m序列的(Order to achieve the small-m primitive polynomial sequence longevity, by changing the primitive polynomial generator matrix m can produce the desired sequence)
- 2010-05-07 16:30:07下载
- 积分：1
