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IJERTV1IS7260
DC power is steady and continuous, with an electrical charge that flows in only one direction. When the output of DC power is represented on a graph, the result would be a straight line. AC power, on the other hand, flows back and forth in alternating directions so that, when represented on a graph, it appears as a sine wave, with smooth and regular peaks and valleys. A power inverter uses electronic circuits to cause the DC power flow to change directions, making it alternate like AC power. These oscillations are rough and tend to create a square waveform rather than a rounded one, so filters are required to smooth out the wave, allowing it to be used by more electronic devices.
AdChoices
- 2013-02-28 13:40:37下载
- 积分：1
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Matlab-C-CPP
MATLAB与c/C++ 混合编程，提高程序运行效率(Hybrid programming between MATLAB and C++)
- 2015-03-30 21:15:09下载
- 积分：1
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turbo_demo
tuobo matlab仿真编程有很多一个，我一个一个发。很好用的，我用过了(tuobo matlab simulation program has a lot of one, I am fat, one by one. Good use, I used the)
- 2008-06-03 11:01:32下载
- 积分：1
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CICFilter
文章运用分级抽取和多相滤波的方法改进传统CIC滤波器的结构,降低了系统工作频率,运用幅度改进函数(ACF)和外加级联余弦预滤波器的技术改进了滤波器频率响应,提出了一种高效的算法结构,改善了通带损耗,增大了阻带衰减,对CIC滤波器的实际应用和深入研究有着现实意义。
(Article the use of hierarchical multi-phase extraction and filtering methods to improve the structure of the traditional CIC filter, reducing the system operating frequency, the use of margin to improve the function (ACF) and the cosine cascade plus pre-filter technology to improve the filter frequency response, the an efficient algorithm to improve the pass-band loss, increases the stopband attenuation of the CIC filter in practical applications and in-depth study has practical significance.)
- 2020-08-14 11:08:27下载
- 积分：1
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HHTspe
HHT谱计算程序，不是rilling版本，用改进的Hilbert变换，效果好一些，供大家参考。(HHT spectrum of the calculation procedures, rilling is not a version of the Hilbert transform used to improve the results better for your reference.)
- 2009-04-28 13:58:28下载
- 积分：1
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Matlabwave
Matlab小波图像处理 有参考价值的程序.rar(Matlab wavelet image processing procedures have reference value. Rar)
- 2008-08-11 12:01:25下载
- 积分：1
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addmulc
Addition and multiplication of signals may favour Quality improvement, such as noise reduction, image enhancement, and echo cancellation
- 2013-07-19 14:36:45下载
- 积分：1
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ATiny13-htr
hooter zone card 4 tone
- 2014-09-01 20:22:03下载
- 积分：1
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zhengliu
晶闸管全桥整流仿真模型，适用于电力电子初学者。(Thyristor full bridge rectifier simulation model, suitable for power electronics beginners.)
- 2012-10-28 09:14:30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
