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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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fortran
圆柱绕流的数值模拟（基于有限体积法），Fortran程序(Numerical simulation of flow around a cylinder (based on the finite volume method), Fortran program)
- 2009-11-21 18:21:30下载
- 积分：1
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GOCEPARSER
利用下载的goce原始数据，计算得出含有时间/经纬度/重力梯度格式的程序(Use downloaded goce raw data, calculated with the time/latitude/gravity gradient program formats)
- 2013-08-25 16:44:04下载
- 积分：1
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ModelC_pure
相场法材料计算的model C-pure对应的基础相场计算代码，初学者可取(The phase field calculation code corresponding to the model C-pure calculated by the phase field method material is suitable for beginners.)
- 2021-01-14 22:48:46下载
- 积分：1
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generating-function-of-Hankel-matrix
hankel矩阵生成函数介绍及函数代码。(Hankel matrix generating function introduction and function code.)
- 2013-04-25 09:26:11下载
- 积分：1
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zuiyouhua
此源码包是我本学期最优化理论课程的大作业，其中包括了我自己写的以下常用最优化算法的实现代码：最速下降法，牛顿法，非线性最小二乘法，DFP法。fun1，fun2是两个测试函数。谢谢！(This is my source packages optimization theory this semester courses in large operations, including my own to write the following commonly used optimization algorithm code: steepest descent method, Newton method, nonlinear least squares method, DFP method. fun1, fun2 are two test function. Thanks!)
- 2009-01-31 13:36:29下载
- 积分：1
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LMI_SOLVE
运用线性矩阵不等式(LMI)求解鲁棒优化问题。该LMI不等式求解代码，更具有一般性，结合matlab中help命令,能够方便的对新的LMI问题求解(This programme code is useful for the common optimization problem, combined with the description of matlab help statement, a new LMI problem can be easy to solve.
)
- 2016-03-16 22:31:16下载
- 积分：1
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DMI_snap
快拍数不同时，DMI直接矩阵求逆算法进行波束形成的(The snapshot number is not the same, DMI direct matrix inversion algorithm beamforming)
- 2011-07-06 16:39:33下载
- 积分：1
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sspropcm
利用分步傅立叶积分法，求解薛定谔方程，可以计算光纤中色散与SPM(This file solves the nonlinear Schrodinger equation for propagation in an optical fiber using the split-step Fourier method described
)
- 2009-05-19 22:26:49下载
- 积分：1
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python机器学习预测分析核心算法
python机器学习预测分析核心算法的例程(Python machine learning prediction and analysis of core algorithm routines)
- 2018-08-01 01:34:40下载
- 积分：1
