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VQ
说明: 基于矢量量化的说话人识别系统,可以实时录音检测(VQ speaker recognition system can detect real-time recording)
- 2015-12-29 10:20:48下载
- 积分:1
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matlab4
这是解微分方程的经典matlab程序包,里面包含的内容比较多,大家可以选择自己需要的用(This is the classic solution of differential equations matlab package, which contains more, everyone can choose their own need to use)
- 2007-10-18 15:51:59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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Cdma2k
这个模型仿真了CDMA2000 1xRTT下行链路(从基站到移动站)。(The model simulation of CDMA2000 1xRTT downlink (from base station to mobile station).)
- 2009-11-23 17:35:44下载
- 积分:1
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image-denosing
image denosing algorithm code
- 2014-10-16 16:44:55下载
- 积分:1
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fir
用matlab设计FIR维纳滤波器
假设一个点目标在x,y平面上绕单位圆做圆周运动,由于外界干扰,其运动轨迹发生了偏移。其中,x方向的干扰为均值为0,方差为0.05的高斯噪声;y方向干扰为均值为0,方差为0.06的高斯噪声。用该滤波器处理观测信号,得到其最佳估计。(FIR Wiener filter design using matlab
Suppose a point target in the x, y plane around the unit circle in a circular motion due to external interference, its trajectory shift occurred. Which, x the direction of the interference of mean 0 and variance of 0.05 Gaussian noise y direction of the disturbance is zero mean Gaussian noise variance 0.06. Observed with the filter processing signal, to get the best estimate.)
- 2011-12-14 16:24:52下载
- 积分:1
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CDMA-simulation-for-two-sequences
关于DSCDMA的仿真,首先对信号调制,然后扩频,接收端解扩解调。包含单用户和多用户下的的误码率曲线。(On the DSCDMA simulation, firstly modulate signals , and then spread spectrum, the receiver de-spread demodulation. Including single-user and multi-user under the BER curve.)
- 2016-11-24 09:56:21下载
- 积分:1
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MATLAB虚拟信号发生器
说明: 基于Matlab的仿真,虚拟信号发生器,实现各种信号(sin cos ... )的发生(Matlab based simulation, virtual signal generator based on Matlab simulation, virtual signal generator, achieve various signals (sin...The occurrence of))
- 2019-07-10 15:29:19下载
- 积分:1
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DOA_MATLAB
阵列信号处理 各种经典算法 MUSIC ESPRIT等
值得珍藏(Array signal processing algorithms blessed with a variety of classic)
- 2011-05-08 15:17:06下载
- 积分:1
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fourier
说明: DSP入门:应用傅里叶变换对信号进行频谱分析(DSP basis: Implement of Fourier Transfer to analysis signals spectrum)
- 2010-03-25 13:30:29下载
- 积分:1