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mhs
marginal hilbert spectrum can be used for reconstruction of the original signal from decomposed signals by eliminating the unwanted noises.
- 2010-09-23 16:21:48下载
- 积分:1
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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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attachments
reading audio in matlab and noise added to the audio signal and played through the the matlab
- 2012-04-24 18:06:25下载
- 积分:1
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tftb-0.1
分析非平稳信号的工具包,时频工具包,能帮你分析非平稳信号(Analysis Toolkit non-stationary signals, time-frequency toolkit can help you analyze non-stationary signals)
- 2014-02-08 21:35:23下载
- 积分:1
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Vector_Control_SVPWM
vector controlof machine with svpwm
- 2014-02-26 01:46:35下载
- 积分:1
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ninghie_v21
模式识别中的bayes判别分析算法,进行逐步线性回归,小波包分析提取振动信号中的特征频率。( Pattern Recognition bayes discriminant analysis algorithm, Stepwise linear regression, Wavelet packet analysis to extract vibration signal characteristic frequency.)
- 2017-02-15 17:02:12下载
- 积分:1
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ZOOMFFT
这个描述的频率细化技术,想使用这样的方法,对密集的地方进行放大。(Detailed description of the frequency of this technology, you want to use this method, place of intensive amplification.)
- 2011-01-06 13:58:47下载
- 积分:1
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costas123
锁相环的工作模式:单载波为“1”、BPSK调制为“2”、QPSK调制为“3”
对其进行仿真 修改可用于高动态(The PLL operating modes: single-carrier is "1", and the BPSK modulation is "2", the QPSK modulation is "3."
Its simulation modifications can be used for high dynamic)
- 2012-12-29 21:52:30下载
- 积分:1
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FM
说明: FM(Frequency Modulation) using simulink in Matlab.
- 2010-05-31 05:07:25下载
- 积分:1
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ShuaZiMoXing
稳态侧偏刷子模型,考虑了垂直载荷分布情况的不同,分别进行了程序计算。(Tire model for the shuazi model, it can calculate for differnt Fz)
- 2012-05-26 12:56:29下载
- 积分:1