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MATLAB
关于matlab编程的书，适合大家入门学习与提高。(Matlab programming on the book, suitable for all entry-learning and to improve.)
- 2007-11-29 17:45:51下载
- 积分：1
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qpsk
此源码包含了QPSK调制所需的一系列子程序，方便大家学习参考(This source contains a series of subroutines required for QPSK modulation to facilitate them to learn from reference)
- 2010-05-12 21:23:46下载
- 积分：1
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Fourier
利用matlab中傅里叶变换进行函数频谱分析的程序。亲测好用！(Fourier transform using matlab function spectrum analysis procedures. Pro-test easy to use!)
- 2014-10-07 10:17:28下载
- 积分：1
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chap2
雷达信号处理、雷达检测，波形 ，信噪比，波形检测(Radar signal processing, radar detection, waveform, signal to noise ratio)
- 2020-06-21 09:20:02下载
- 积分：1
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113172219hog
description phog en matlab
- 2009-09-24 23:21:58下载
- 积分：1
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Wood-EMBS-2005
target tracking codes
- 2011-11-01 19:23:00下载
- 积分：1
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MATLAB_Program
偏微分图像处理MATLAB程序 (包括水平集插值等插值方法）(MATLAB partial differential image processing programs (including the level set interpolation interpolation methods))
- 2015-11-25 10:32:35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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Channel.Estimation.of.OFDM.System.in.Slow.Fading
OFDM系统下，慢衰落的信道估计基本算法描述(Channel Estimation of OFDM System in Slow Fading Channel)
- 2010-12-07 13:44:01下载
- 积分：1
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fangshe
说明： 图像置乱中的仿射变换，优点是加密和解密的不需要周期迭代，图像置乱效果好(it is good for image scrambling becaus of low compute complexity)
- 2011-03-16 17:46:15下载
- 积分：1
