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face
说明: 人脸检测的matlab程序,从网上下载的,希望对大家有用.(face detect matlab)
- 2011-03-20 10:24:21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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NSGAII自然计算作业
说明: 多目标遗传算法在工程领域应用较为广泛,希望对大家有用。(Multi-objective genetic algorithm is widely used in the field of engineering, and it is hoped to be useful to everyone.)
- 2020-06-03 17:05:32下载
- 积分:1
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Cameron_99MTT_folded_form
Cameron 99MTT广义切比雪夫滤波器耦合矩阵计算程序(General Chebyshev response filter coupling matrix calculating tool)
- 2014-08-07 09:22:13下载
- 积分:1
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HarmonicsANDapfft
电力系统谐波监测相关的文章其中的fft和apfft之间的对比很有参考意义(Fft and apfft contrast between the power system harmonic monitoring related article which is very useful)
- 2014-12-11 11:20:01下载
- 积分:1
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UsingGAforpidcontrol
说明: 基于遗传算法(GA)设计了pid控制器,仿真结果良好。(based on genetic algorithm (GA) pid controller design, simulation good results.)
- 2006-04-17 17:31:48下载
- 积分:1
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jianmo.rar
MATLAB学习与应用,便于同学掌握其相关功能,实现在学习中熟练应用(Learning and application of MATLAB to facilitate the students to master their related functions, to achieve proficiency in the application of learning)
- 2010-05-19 08:48:41下载
- 积分:1
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Three_step_search_Algorithms_papers
Frame interpolation, frame rate up-conversion
(FRUC), motion estimation, motion-compensated frame interpolation
(MCFI), motion-compensated temporal frame interpolation
(MCTFI), predictive search, true-motion, video processing
- 2014-10-04 13:23:11下载
- 积分:1
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phd
基于Pisarenko谐波分解的间谐波估算方法。自己编写的程序,可直接运行。(Based Pisarenko harmonic decomposition between harmonic estimation methods. The programs that can be run directly.)
- 2016-05-12 21:35:38下载
- 积分:1
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matlab-study-ppt
matlab学习课件,内容基本,易懂,方便自学!(matlab learning courseware, content, basic, easy to understand, convenient self-study!)
- 2009-09-08 22:52:15下载
- 积分:1