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MorphologieMathematique
Morphologic filters in matlab.
- 2010-11-03 17:55:06下载
- 积分：1
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r_k45
关于龙哥-库塔法的简单编写方程，此法参考数值分析中定步长的方法(About Ge- Kutta method of writing a simple equation, this method refer to the numerical analysis method of fixed step size)
- 2011-07-28 15:18:19下载
- 积分：1
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Chapter-1
数字信号处理教材第三版中的第一章中的程序(dsp of chapter1)
- 2015-01-04 21:09:42下载
- 积分：1
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cluster VMDaFCM casedat
为了精准、稳定地提取滚动轴承故障特征，提出了基于变分模态分解和奇异值分解的特征提取方法，采用标准模糊C均值聚类(fuzzy C means clustering, FCM)进行故障识
别。对同一负荷下的已知故障信号进行变分模态分解，利用
奇异值分解技术进一步提取各模态特征，通过FCM形成标准聚类中心，采用海明贴近度对测试样本进行分类，并通过计算分类系数和“卜均模糊嫡对分类性能进行评价，将该方法
应用于滚动轴承变负荷故障诊断。通过与基于经验模态分解的特征提取方法对比，该方法对标准FCM初始化条件小敏感，在同负荷故障诊断中表现出更好的分类性能 变负荷故障诊断时，除外圈故障特征线发生明显迁移，其他测试样本故障特征线仍在原聚类中心附近，整体故障识别率保持在100 ，因此，该方法能精确、稳定提取故障特征，为实际滚动轴承智能故障诊断提供参考。( In order to extract fault features of rolling bearing precisely and steadily, a method which is based on variational mode decomposition(VMD) and singular value
decomposition was proposed for fault diagnosis using standard
fuzzy C means clustering(FCM). First of all, the known fault signals measured in the same load but with different faults were
decomposed by VMD, and the modes characteristics were
further extracted using singular value decomposition technique,forming the standard clustering centers by FCM, and then the
test samples were clustered by a Hamming nearness approach,
and the classification performance was uated by calculating classification coefficient and average fuzzy entropy. At last, the method was applied in rolling bearing fault diagnosis under
variable loads. By comparing with a method based on EMD,
this approach is not sensitive to the initialization of standard FCM, and exhibits better classification performance in the same load fault diagnosis Fo)
- 2020-11-11 20:59:44下载
- 积分：1
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doarima
ARIMA模型，用来对非平稳信号的功率谱估计，很有用！(ARIMA model, used for non-stationary signals in power spectrum estimation, very useful!)
- 2007-07-21 11:54:11下载
- 积分：1
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opticsfiber
光通信新技术的简介：光接收机和光检测机的详细讲解好描述。(optics fiber communications)
- 2009-11-01 20:05:25下载
- 积分：1
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fdtd
FDTD贴片天线s参数，计算电磁场的数值方法教材(FDTD patch antenna s parameters, calculation of electromagnetic field of teaching methods)
- 2010-11-15 12:48:53下载
- 积分：1
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matlab-AutoControlSystemSimulink
MATLAB在自动控制系统中的仿真应用，电子书，内容很有价值，本站尚没有此书。(MATLAB in Simulation of automatic control system application, e-books, valuable content, this site has not this book.)
- 2009-06-17 00:37:45下载
- 积分：1
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zizi
image processing-circle detection
- 2014-08-12 18:41:56下载
- 积分：1
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tjxxff
教材统计学习方法
Statistical Learning Materials(Statistical Learning Materials)
- 2013-08-24 08:06:48下载
- 积分：1
