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PCA-tutorial
A tutorial on Principal Components Analysis
- 2013-10-01 18:59:31下载
- 积分：1
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MTI-radar-system-delay-cancellation
雷达系统MTI延迟对消器实现程序，对理解雷达动目标检测很有帮助(MTI radar system delay cancellation in implementation process, is of great help to understand the radar moving target detection
)
- 2013-12-25 22:41:42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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WordImageCreate
word image create in matlab
- 2011-11-12 06:14:42下载
- 积分：1
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Fitz
在qpsk下的Fitz 算法，是对fitz论文中算法的实现，压缩文件中包含代码和实验图像(The Fitz algorithm under qpsk is an implementation of the algorithm in the fitz paper, which contains code and experimental images)
- 2017-03-05 12:33:29下载
- 积分：1
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untitled001
直流恒负载转速调节，转速环突然断路matlab(DC Constant load speed regulation, speed loop circuit suddenly matlab)
- 2010-07-11 22:33:44下载
- 积分：1
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3-B-Spline
小弟初来乍到，供上B样条程序一件，希望各位前辈，多多指教。谢谢(Brother had just arrived for a program on the B-spline, I hope seniors exhibitions. Thank you)
- 2013-11-30 22:44:04下载
- 积分：1
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Optimize-Truss-by-FSD-and-SLP
this code optimize the truss with slp
- 2013-08-30 18:09:25下载
- 积分：1
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project
The optimum location for the placement of DG in the radial distribution networks for active power compensation by reduction in real power losses and enhancement in voltage profile.
- 2020-11-23 21:59:33下载
- 积分：1
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disanzhang
功率谱估计和信号频率估计方法 周期图法 BT法(Power spectrum estimation and the signal frequency estimation methods periodogram )
- 2013-12-08 21:46:31下载
- 积分：1
