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fft
fft的应用，包正旋信号，脉冲信号等通
过fft变换所产生的变化(fft applications, including the sine signal, pulse signals generated by changes in fft transform)
- 2011-05-09 10:25:37下载
- 积分：1
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pagerank
pagerank的一个简单改进，用来识别核心节点。(A simple improvement of PageRank is used to identify core nodes.)
- 2018-05-05 10:50:28下载
- 积分：1
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codedbyG
performance of coding system by systematic matrix G in BSC channel.
- 2010-11-29 20:12:23下载
- 积分：1
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leefilter
极化SARlee滤波程序，对极化相干矩阵进行处理，也可以调整为普通图像(SARlee polarization filtering procedures to deal with polarization coherent matrix can also be adjusted to the general image)
- 2009-05-20 21:29:35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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MATLABBasic-tutorial
MATLAB基本教程，PPT形式，共138页，板式清新，内容全面。(MATLAB basic tutorial PPT form of a total of 138 fresh, plate, and comprehensive content.)
- 2013-03-26 15:39:34下载
- 积分：1
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genetic-algorithm-TSP
遗传算法求解随机生成城市的最短路径问题即旅行商问题，同时生成路径图(a solution to TSP problem based on genetic algorithm)
- 2015-02-07 14:05:57下载
- 积分：1
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802-11a
Original code for OFDM chain applicated to wireless standard
- 2010-09-18 18:28:52下载
- 积分：1
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MVDR
这里是MVDR应用于数字波速形成技术，功能强大，同时附带两篇做的时候用的参考文献(This is the wave velocity of the formation of MVDR digital technology, powerful and at the same time doing two incidental references used)
- 2009-05-28 11:28:19下载
- 积分：1
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2Tx2RxSTBC
两发两收的空时分组编码OFDM系统
采用SUI5信道模型(received two rounds of two space-time block coding system used SUI5 OFDM channel model)
- 2007-06-05 21:50:01下载
- 积分：1
