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fangzhen
matlab仿真模型，可以当作毕业设计内容使用。(matlab simulation model can be used as a graduation project content.)
- 2008-08-03 19:57:38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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AnDarksamtest
This is the program which is responsible for anderson darling k sample test
- 2010-12-27 16:12:15下载
- 积分：1
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MATLAB_vector_signal_process
说明： 有关矢量信号处理的基本仿真，得到声压功率谱，x,y.z各方向声强谱(Vector signal processing related to the basic simulation，underwater acoustic)
- 2010-05-04 22:16:02下载
- 积分：1
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modul
AM FM PM matlab codes
- 2013-09-06 22:59:34下载
- 积分：1
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DCM
Cannot create induction motor dq model.rar
- 2014-10-29 04:03:10下载
- 积分：1
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codes
matlab hinf算法，用于计算hinf范数判定稳定性(the matlab hinf algorithm)
- 2013-03-29 15:21:12下载
- 积分：1
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matlab-chapter7
谢汉龙matlab书籍第七章基本入门功能的实现过程，常用matlab的基础程序(Implementation Xiehan Long matlab books Chapter VII basic entry function on the basis of common procedures matlab)
- 2015-01-05 13:57:19下载
- 积分：1
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The-first-matlab-exercise
清华大学张旭东老师现代信号处理第一次matlab习题(The first matlab exercise in modern signal processing by Xudong Zhang, Tsinghua univ.)
- 2015-01-29 23:11:42下载
- 积分：1
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pengfiu
空间目标识别，采用PM算法，是国外的成品模型，数值分析的EULER法。( Space target recognition algorithm using PM, Foreign model is finished, EULER numerical analysis method.)
- 2016-04-25 14:41:03下载
- 积分：1
