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Zerroumda-Tp_FD_NR_GS
POWER FLOW ZERROUMDA
- 2014-01-06 19:42:25下载
- 积分:1
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MATLAB3
【matlab编程代做】matlab+3D立体视差源码 可以作为参考使用学习 ([Do] matlab programming generation matlab+ 3D stereoscopic parallax can be used as a reference source to learn)
- 2015-01-11 17:58:13下载
- 积分:1
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stap
RDP-距离域分段滤波-预处理
(RDP- distance domain segment filtering preprocessing)
- 2021-03-04 16:49:32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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viterbi_Decoder
对卷积码进行译码MATLAB仿真,Hard Decision Viterbi Decoder(Decoding convolutional codes of MATLAB simulation, Hard Decision Viterbi Decoder)
- 2010-10-06 23:23:10下载
- 积分:1
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lmsandrls
以下程序是基于matlab软件实现自适应滤波器的lms和rls两种算法,不像有些程序那样冗杂,简练明了。定义一个输入信号加入一组噪音,用自适应算法进行滤波,其中用到一个for循环。(The following procedure is based on the matlab software implementation of the LMS adaptive filter and rls two algorithms, unlike some of the procedures as miscellaneous, concise and clear. The definition of an input signal by adding a group of noise, use of adaptive filtering algorithm, which uses a for cycle.)
- 2008-04-27 11:00:22下载
- 积分:1
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chebyshev
输出chebyshev映射的混沌序列,及其自相关、游程特性(Output chebyshev map sequence, and autocorrelation, run-length features)
- 2020-12-30 16:19:00下载
- 积分:1
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edge
说明: 为了减少边缘检测中的噪声影响,设计了一种分数阶差分滤波器,给出了该滤波器的原理,分析了此类滤波器的幅频特性.(In order to reduce the effect of the noise in edge detection,a kind of fractional-order difference filters were designed,whose theory was worked out and amplitude-frequency characteristic were analyzed.)
- 2010-03-31 01:49:23下载
- 积分:1
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fullwave_bridge_rectifier
full bridge converter simulink model matlab
- 2015-04-05 16:48:46下载
- 积分:1
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correlation_psd
说明: 这是一个关于自相关算法及功率谱的仿真的源代码,可以供matlab初学者学习,以便今后在做相关研究中有所帮助。(This is the one on self-correlation algorithm and power spectrum of the simulation source code can be used for matlab beginners to learn to do research in the future help.)
- 2010-03-30 15:12:26下载
- 积分:1