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Wavelet_transform
将信号用小波函数SYM5分解到第5层，用minimaxi阈值选择对系数进行处理，消除噪声(SYM5 decomposition using the wavelet function signals to the fifth floor, use minimaxi threshold choice to deal with coefficient, eliminate noise)
- 2013-09-03 20:55:43下载
- 积分：1
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PSO
用基本粒子群算法来解决优化问题，本程序给出的是测试函数，根据需要可以自行更改适应度函数。(Using particle swarm optimization algorithm to solve the problem, this program is given a test function, you can change the fitness function according to their needs.)
- 2015-01-24 10:51:48下载
- 积分：1
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Fuzzy_entropy_bbd
模糊熵， 为解决从信号中提取故障特征难的问题, 介绍了一种新的信号故障特征提取方法—— 多尺度熵( multi-scale
entro py, 简称MSE) , 并将样本熵和多尺度熵分别应用于转子故障信号复杂性的度量, 以提取故障特征。试验数据
分析表明, 与样本熵相比, 多尺度熵更能有效地实现转子故障类型的诊断。(A new rolling bearing fault diagnosis approach based onmultiscale permutation entropy (MPE), Laplacian score (LS), and support
vector machines (SVMs) is proposed in this paper. Permutation entropy (PE) was recently proposed and defined to measure the
randomicity and detect dynamical changes of time series.)
- 2014-05-09 10:05:29下载
- 积分：1
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B-yangtiaoxiaobo
在matlab中利用3阶和四阶B 样条函数构造正交小波；(use 3 order and fourth order B spline function structural orthogonal wavelet
)
- 2011-06-13 22:12:08下载
- 积分：1
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wignerm
对信号进行Wigner-Ville分布分析的matlab函数(The matlab function of Wigner-Ville distribution analysis.)
- 2014-10-25 11:57:58下载
- 积分：1
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qq3
在弹道仿真过程中，弹道参数的一些保护情况，可以对参数有更直接的了解。(In the trajectory simulation process, a number of ballistic protection parameters, parameters can have a more direct understanding.)
- 2008-05-10 16:17:26下载
- 积分：1
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fft
用MATLAB实现快速傅里叶变换。方程有需要的话，可以自己设定(Using MATLAB to achieve fast Fourier transform. Equation there is a need, they can set their own)
- 2009-05-13 09:38:58下载
- 积分：1
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inprove_beta
说明： 改进的蚁群算法应用于搜索信号有效带宽
信噪比SNR=-10dB
信号有效带宽250~300Hz
( Improved search algorithm for the effective bandwidth of the signal noise ratio SNR =- 10dB efficient bandwidth in 250 ~ 300Hz)
- 2011-02-17 14:18:53下载
- 积分：1
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Probing_into_Technique_of_Image_Enhancement_Based_
说明： ：图像增强是图像处理的一个重要分支，是图像边缘提取、图像分割等的基础．文章介绍了常用的图像增强技
术，并且以Madab为工具完成图像的直方图均衡化、巴特沃斯高通滤波器操作的示例，给出了处理前后的对照图像．重点介
绍了利用小波变换进行图像增强，获得了比较好的增强效果．(: Image enhancement is an important branch of image processing is the image edge extraction, image segmentation, etc. basis. This paper introduces the commonly used image enhancement technology, and to Madab as a tool to complete the image histogram equalization, Butterworth high-pass filter operation of an example is given before and after contrast images. Focuses on image enhancement using wavelet transform to obtain a relatively good enhancement.)
- 2010-03-19 12:32:06下载
- 积分：1
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Gauss_LieZhu
数值分析,迭代方法,高斯列主消元法,matlab源程序, Gauss(Numerical analysis, iterative method out PCA Gaussian elimination method, matlab source code, Gauss)
- 2013-11-04 22:48:40下载
- 积分：1
