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2DLDA
2dlda face recgnition...............matlab
- 2010-08-24 10:34:36下载
- 积分:1
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AnalysisKSVDbox
Analysis K-SVD: A Dictionary-Learning Algorithm for the Analysis Sparse Model.
- 2014-01-06 14:54:10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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recommendation-algorithms-master
说明: 该算法是通过matlab语言编程实现。 实现推荐系统算法,基于内容的推荐算法,基于约束的推荐算法。(Matlab implements recommendation system algorithm, content-based recommendation algorithm, constraint based recommendation algorithm.)
- 2020-04-11 10:07:48下载
- 积分:1
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flop
SFLOP simulates a floating point operation
x op y where op = +, -, *, /
In chopping or rounding arithmetic using an
m digit mantissa, base 10, and an unrestricted
exponent range. (sflop: Simulate FLOating Point
operation.) For more details on the how the floating
point representation of a number is computed see
the function sfl.( SFLOP simulates a floating point operation
x op y where op =+,-,*,/
In chopping or rounding arithmetic using an
m digit mantissa, base 10, and an unrestricted
exponent range. (sflop: Simulate FLOating Point
operation.) For more details on the how the floating
point representation of a number is computed see
the function sfl.)
- 2009-04-08 00:19:23下载
- 积分:1
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full_bridge_V2
DCDC全桥变换器的闭环simulink模型,电压闭环PI控制(Simulink for full_bridge DCDC.it was controled by PI controler )
- 2013-11-12 18:11:43下载
- 积分:1
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concise-computer-vision.pdf.bestever
Book about filter kalman position tracking
- 2014-12-19 17:37:57下载
- 积分:1
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gauss
啁啾光栅matlab仿真程序,方便学习光栅特性(Chirped grating matlab simulation program to facilitate the learning Grating)
- 2009-12-10 18:06:13下载
- 积分:1
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UPFCModel2
a upfc modal for matlab
- 2012-05-16 21:39:12下载
- 积分:1
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matlab-power-flow--Nbus
潮流计算MATLAB 潮流计算MATLAB 潮流计算MATLAB 潮流计算MATLAB 潮流计算MATLAB(power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab )
- 2021-03-06 21:19:30下载
- 积分:1