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energy-leakage--dual-tree
首先根据高斯白噪声频率充满整个频带的特性,通过双树复小波包变换对高斯白噪声进行分解,利用频带能量泄漏的定量分析方法,验证了双树复小波包变换具有较低的频带能量泄漏特性;其次利用双树复小波包变换逐层分解信号,对每层分解所得分量求其FFT谱的峭度,得到基于双树复小波包变换的谱峭度图,根据图中峭度最大的原则,可以自动准确的选择信号分解最佳层数和最佳分量;最后将基于双树复小波包变换的谱峭度图的故障诊断方法应用于实际工程中,对齿轮故障振动信号进行分析,选择最佳分解层数和分量后利用希尔伯特包络解调,有效准确地提取了故障特征信息,验证了方法的可行性和有效性(The parameters of a filter were determined by experience, and that has a great influence on the
results of signal processing. The discrete wavelet packet transform has a larger energy leakage of frequency band,
which obviously affected the results of the envelope demodulation. It is necessary to have a method with a lower
energy leakage of the frequency band before envelope demodulation. The dual tree complex wavelet packet
transform (DT-CWPT) was a new signal processing method that had many good qualities. Because the energy
leakage of the frequency band was smaller when the signal was decomposed by a dual tree complex wavelet
packet transform, the dual tree complex wavelet packet transform was used to extract the fault feature information
in the field of fault diagnosis. In this paper, first, according to the characteristics of Gaussian white noise, whose
frequency was full of the whole frequency band, Gaussian white noise was decomposed by a dual-tree complex
wavel)
- 2014-05-28 17:13:41下载
- 积分:1
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modelclaasify
该算法,先对协方差矩阵进行休整,然后用信息论的方法得出信号的源数,这是进行空间普估计的基础(The algorithm, first on the covariance matrix for a rest, and then used information theory methods to draw a number of signal sources, it is estimated that the basis of space S )
- 2008-04-23 17:10:18下载
- 积分:1
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rtfindgen
多物理场耦合软件采用有限元方法模拟rtfindgen(Coupled multi-physics simulation software using the finite element method rtfindgen)
- 2017-03-10 00:38:29下载
- 积分:1
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The-method-of-least-squares
最小二乘法的证明及matlab程序,附有文字说明和程序源码(The method of least squares)
- 2013-04-23 16:49:02下载
- 积分:1
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SOMP
同时正交匹配追踪算法的MATLAB程序,一些文献中也被翻译成同步正交匹配追踪。(Simultaneous Orthogonal Matching Pursuit(SOMP))
- 2020-12-02 20:59:25下载
- 积分:1
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atjjs
埃特金加速法,一个数值分析中的算法,大家先看看哦(Aitken acceleration method, a numerical analysis of the algorithm, we look at the flash open her cloak)
- 2007-06-18 10:34:17下载
- 积分:1
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kodingan-adov
AODV code for network
- 2015-01-15 18:28:34下载
- 积分:1
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Transmission-Network-Expans1on
应用遗传算法做电网规划,把遗传算法应用于输电网络规划,提出了基于遗传算
法的输电网络规划模型,以新建线路的投资费用和系统年运
行费用之和最小为目标函数,建立了输电网络规划的数学模型。该模型还考虑了“N-1”事故检验,使得规划方案更加合理。以Garver-6节点系统为例进行优化规划(The application of genetic algorithms to do network planning)
- 2020-07-30 09:18:39下载
- 积分:1
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averageData
读取csv文件的数据,按要求拉算出平均数(Read csv file data, calculate the average number required to pull)
- 2020-08-14 14:58:35下载
- 积分:1
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zuixin
dft频率测量算法,主要针对电网频率的测量(the dft frequency measurement algorithm)
- 2013-03-28 23:00:39下载
- 积分:1