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acquisition-for-DF
说明: 这是一篇关于GPS信号的捕获文章,采用的是DF差分相关捕获的算法,具有在较低信噪比的情况下捕获信号(This is an article about the capture of GPS signal, using the DF algorithm to capture differential associated with low signal to noise ratio in the case of capture signal)
- 2011-03-09 15:14:39下载
- 积分:1
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mym-utilities
utility in matlab for utility matlab mysql
- 2012-01-11 22:51:52下载
- 积分:1
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MGLab1.0
说明: 多网格的源程序,希望对大家有帮助,好东西一起分享(Multi-grid source, we want to help, to share good things)
- 2011-03-24 19:39:47下载
- 积分:1
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wind-power
基于极限学习机的短期风电功率预测,包含了风电功率序列,风电功率曲线拟合(wind power forecast)
- 2014-12-22 21:13:49下载
- 积分:1
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ID3
以matlab为开发环境实现ID3算法,包括分类预测,建树等。(ID3 agorithm basis on matlab)
- 2010-12-05 10:04:55下载
- 积分:1
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cosc
1SpectralClustering_V1_1 Algorithm
- 2014-02-08 12:27:08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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dijkstraandfloyd
说明: 详细给出floyd、dijkstra算法,并给出具体例子以及如何看运行结果。所有程序均通过真实测试。(Details are given floyd, dijkstra algorithm, and gives specific examples and how to look at the results. Through all the procedures are the real test.)
- 2009-07-31 11:09:39下载
- 积分:1
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magnolia
magnolia中文教程,讲述如何创建模板及段落等(magnolia Chinese tutorial on how to create a template and paragraphs)
- 2013-01-29 12:20:08下载
- 积分:1
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yuanshuguji
一种聚类分析算法,实现盲源分离前的盲源数估计。(A cluster analysis algorithm, the number of blind source before blind source separation estimates.)
- 2014-09-13 21:03:20下载
- 积分:1