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example4_6
:滤波
fs=400 采样频率,必须大于两倍基带信号最高频率
ts=1/fs 采样时间间隔
T=5 时间窗大小
t=0:ts:T (hf1=zeros(1,N)
hf1(f<=B1&f>=-B1)=1
y1=hf1.*fftshift(y)
figure
subplot(211)
plot(f,abs(fftshift(y))/N,f,hf1, r-- )
axis([-fs/2,fs/2,0,1.2])
title( 原信号频谱 )
xlabel( f /Hz )
subplot(212)
plot(f,abs(y1)/N)
title( 低通滤波,截止频率90Hz )
xlabel( f /Hz ))
- 2010-05-25 20:58:05下载
- 积分:1
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BPrecognition
此例可采用BP神经网络算法用于设备故障类型的模式识别程序。 本次为变压器故障(均为低压测故障)类型的识别。(This example can be used BP neural network algorithm for pattern recognition procedures for equipment fault type. The identification of the type of transformer fault (both low pressure fault detection).)
- 2020-12-07 16:19:21下载
- 积分:1
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brownian_2d
2D brownian motion , brownian motion is a particle motion wich simulate the random force of particles
- 2011-01-22 16:07:55下载
- 积分:1
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005小波变换及其MATLAB工具的应用
说明: 005小波变换及其MATLAB工具的应用(005 DWT and MATLAB application tools)
- 2005-11-13 19:24:37下载
- 积分:1
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lfm128
脉冲压缩,能进行雷达脉冲压缩原理的仿真,属于雷达系列的基本原理(Pulse compression, can be simulated radar pulse compression principle, belong to the basic principles of radar range)
- 2020-11-15 13:49:42下载
- 积分:1
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SVM
一个matlab的SVM向量机程序。解决SVM分类问题。(A Matlab SVM vector machine program. To solve the SVM classification problem.)
- 2021-04-11 20:28:58下载
- 积分:1
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dnzljc
在电能质量检测中暂态信号和稳态信号的建模的源程序(Power quality detection of transient and steady-state signal source)
- 2013-04-10 15:41:53下载
- 积分:1
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shuangmushijue
三维重建技术的研究是计算机视觉学科的一个重要领域,而双目视觉则是三维重建中的一项重要技术,它利用左右摄像机拍摄出的立体图像对,依据其中包含的几何关系将场景的三维信息重构出来。(The 3-D reconstruction technology of computer vision is a significant field of computer vision ,and binocular stereo vision is a very important technique in 3-D reconstruction of scene.)
- 2010-07-05 18:17:46下载
- 积分:1
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MATLAB
奇异值分解及欧式距离计算,两组数据之间的计算(singular and calculate distense)
- 2009-11-18 10:26:57下载
- 积分:1
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Maximum-distance-method
说明: 生成128条黑白颜色的结构光条纹,其中黑条纹的宽度是白条纹宽度的三倍。(Generate 128 black and white color structured light stripes, black stripes of the width of which is three times the width of the white stripe.)
- 2011-03-05 11:11:38下载
- 积分:1