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locthresh
this program to help you to Find the local threshold of an image
- 2010-09-29 14:39:26下载
- 积分：1
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med2d
一种基于最小熵反褶积( ]8+83)3 6+D*(A4 Q20(+W(-)D8(+，]6Q) 的滚动轴承故障特征提取方法: 在利用 /X 模型去除齿轮啮合产生的确定性信号的基础上，对保留信号进行最小熵反褶积，增强冲击信号"该方法避免了传统轴承故障诊断方法中带通滤波器设计的难题，实车测试表明: 与共振解调技术相比，该方法提取的滚动轴承故障特征更加明显，更适合于工程应用"(Based on minimum entropy deconvolution (] 8+83) 3 6+D* (A4 Q20 (+W (-) D8 (+,] 6Q)' s fault feature extraction method: using/X model to remove the uncertainty generated signal gear on the basis of the retention signal minimum entropy deconvolution, and enhance the impact of signal " This method avoids the problems of traditional bearing fault diagnosis method of the bandpass filter design, real vehicle test showed that: compared with the resonance demodulation technology, which fault feature extraction method is more obvious, more suitable for engineering applications. " )
- 2020-12-04 22:49:24下载
- 积分：1
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SMC
滑模控制经典书籍，内含各种程序源代码！包括基本滑模控制，自适应滑膜控制，及反演自适应滑模控制！是一本很好的资料！(Sliding Mode Control classic books , containing a variety of program source code ! Includes basic sliding mode control , adaptive control synovium , and inversion adaptive sliding mode control ! Is a very good information !
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- 2020-10-22 22:47:28下载
- 积分：1
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chengxu
小波变换进行变速箱故障诊断
首先将s1和s2信号时域谱（s1代表维修前的振动信号，s2代表维修后的振动信号），画出来进行对比，会发现s1信号的振动幅值会比较高；然后对s1和s2分别进行小波分解并画出各层的时域谱，只对比s1和s2分后的最高时域谱，s2更加的具有周期性，且幅值较小，s2周期性不够明显，且振动过于密集。分析完时域谱后开始分析频谱，首先对原信号s1和s2fft转换，得到频谱图，如图，然后再对小波分析后高频部分进行fft转换，做出频谱图。对比后我们发现，在f 2375HZ出（也就是齿轮的啮合频率），s1信号频谱幅值会有急剧的升高，然后，其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。(Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha)
- 2017-01-17 19:18:02下载
- 积分：1
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Threelevel_svpwm
用matlab做的三电平SVPWM逆变器的仿真，能够实现svpwm的基本功能，但是还不完善。(Using matlab to do a three-level SVPWM inverter simulation, svpwm to achieve the basic functions, but not perfect.)
- 2013-07-23 14:04:08下载
- 积分：1
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threeswapMutation
Three swap mutation performs a three way swap of three randomly chosen genes in a permutation
- 2009-07-10 11:39:20下载
- 积分：1
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adaptc
adaptive fir filter data generation
- 2011-07-04 18:28:45下载
- 积分：1
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wavelet-transform-using-knn
基于双低频小波变换和k近邻分类器的人脸识别算法源程序(Dual low frequency wavelet transform and k-nearest neighbor classifier based face recognition algorithm source)
- 2012-10-03 09:55:43下载
- 积分：1
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ls-mmse-ofdm-ch.estimation
ofdm channel estimation using ls and mmse methode matlab code
- 2015-01-02 13:57:24下载
- 积分：1
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Xiao
Xiao信道模型的建立及仿真，还有自相关函数的仿真结果(Xiao channel model simulation correlated function)
- 2021-03-25 16:19:13下载
- 积分：1
