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cxsjlbpp
关于车辆声音信号的滤波、能量以及频谱分析(Voice signals on the vehicle filtering, spectral analysis of energy and)
- 2009-05-13 10:27:08下载
- 积分：1
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MatlabFuzzyClusteringAnalysis
说明： 采用K- means 算法和FCM 算法实现对47 个城市竞争力的聚类分析(Using K-means algorithm and FCM algorithm to achieve the competitiveness of 47 cities in the cluster analysis)
- 2009-08-03 10:52:32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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formal_context
使用matlab利用一定的约简方法实现形式背景的约简和概念格的还原。(Using matlab Reduction Method using certain forms of background reduction and the reduction of concept lattices.)
- 2020-12-31 16:38:59下载
- 积分：1
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CAIM_Discretization
This is for multiuser detection in telecommunication
- 2009-06-05 20:14:30下载
- 积分：1
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Seminar
smart antenna how they works good for arab peaple
- 2010-05-25 21:47:42下载
- 积分：1
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polyfit
这里提供了两个消除趋势相的matlab程序
在故障诊断中 要对信号进行频谱分析 而在频谱分析前要消除趋势相 这样得到的频谱 能更好的反映故障 有利于进一步诊断(Here are two trends in the elimination phase of the matlab program in fault diagnosis to the signal spectrum analysis and spectrum analysis in the former to eliminate the tendency of such spectrum can be better reflected further in favor of fault diagnosis)
- 2008-01-06 11:11:57下载
- 积分：1
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eioicrtt
毕业设计中，用Matlab实现了机器人最优路径规划中的全局路径规划，算法采用的是基于方向权的 RPIjWY 二叉树算法，同时结合了哈夫曼编码二叉树的 JCCUmxQ综合。(Graduation design, using Matlab to achieve the optimal path planning of robot global path planning algorithm uses a binary tree algorithm based on the direction of the right RPIjWY , combined with the binary tree Huffman coding JCCUmxQ comprehensive.)
- 2016-01-19 21:46:15下载
- 积分：1
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XMLPerformance
说明： XML解析，功能很强大，大家可以参照下，肯定会有用(XML Parser，powerful functions，you can learn something from it easily.It must be useful to you!)
- 2011-03-08 10:11:10下载
- 积分：1
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ukf_bicycle-matlab
基于UKF的自行车状态估计matlab程序实现(Realization of Bicycle State Estimation Based on UKF with MATLAB Program)
- 2020-10-03 00:37:46下载
- 积分：1
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