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TIANXIANFANGXIANG
天线的方向图仿真，并且给出了各种加窗情况，此外仿真了多信号情况(Antenna pattern simulation, and gives a windowed, in addition to the simulation of multi-signal)
- 2013-04-10 18:38:43下载
- 积分：1
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ofdmmm
OFDM，QPSK调制下仿真程序，包括信道编解码，调制解调，上下采样(OFDM, QPSK modulation simulation program, including channel coding and decoding, modulation and demodulation, and down sampling)
- 2013-12-11 17:20:01下载
- 积分：1
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最小二乘拟合，kf
包括两个简单卡尔曼滤波例子和一个最小二乘法例程(Filtering and least squares)
- 2017-10-07 15:04:35下载
- 积分：1
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emcenter
我写的改进中心点的混合高斯分布的EM算法(I wrote to improve the center of the EM algorithm for Gaussian mixture)
- 2010-11-17 09:24:04下载
- 积分：1
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j02_merry
merry算法用于ofdm盲均衡，本程序用matlab编写(merry blind equalization algorithm for ofdm, matlab prepared to use this program)
- 2010-01-21 20:04:53下载
- 积分：1
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SeuWangyx_1D_FDTD_1
fdtd 在自由空间没有吸收边界的情况下的代码(1D FDTD simulation in free space Without Absorbing Boundary Condition )
- 2010-11-24 13:04:31下载
- 积分：1
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libev-4.15.tar
libev-4.15源码
libev是Marc Lehmann用C写的高性能事件循环库。通过libev，可以灵活地把各种事件组织管理起来，如：时钟、io、信号等。libev在业界内也是广受好评，不少项目都采用它来做底层的事件循环。node.js也是其中之一(libev-4.15 source libev Marc Lehmann is written in C, a high-performance event loop library. By libev, the flexibility to manage the organization of various events, such as: clock, io, signals. libev is also widely acclaimed in the industry, many projects have adopted it as the underlying event loop. node.js is one of them)
- 2014-01-27 01:37:10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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dataprocess
一种有效的数据预处理方法，主要用于matlab中，sar成像中(data processing)
- 2012-04-09 23:06:32下载
- 积分：1
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tongliangliuliangyouhua
通信网链路容量和流量联合优化分配问题的遗传算法matlab程序(communications network link capacity and optimize the flow of the joint distribution of the genetic algorithm Matlab procedures)
- 2007-04-02 12:44:29下载
- 积分：1
