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8QAM
说明： 利用matlab仿真软件，实现8QAM调制。在实现时采用正交调幅的方式,某星座点在I坐标上的投影去调制同相载波的幅度,在Q坐标上的投影去调制正交载波的幅度,然后将2个调幅信号相加就是所需的调相信号。(Use of matlab simulation software to achieve 8QAM modulation. In achieving the adoption of quadrature amplitude modulation means of a constellation in the I coordinates of the projection to the modulation of the amplitude-phase carrier, in the Q coordinates of the projection to the range of carrier orthogonal modulation, and then the sum of two AM signals is the required phase modulation signal.)
- 2008-11-05 10:39:42下载
- 积分：1
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motionComp
this calculates motion compensated image
- 2011-09-21 22:15:53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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matlab
全能MATLAB
可以运行多种功能，十分方便，界面清晰(Similarity measure and topology evolution of foreign exchange
markets using dynamic time warping method: Evidence from minimal
spanning tree)
- 2012-04-17 20:22:17下载
- 积分：1
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genetic_code
optimal placement dg in electrical network
- 2020-11-26 23:39:31下载
- 积分：1
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attachments_2012_01_16
malab model foe calss c chopper with design and values to simulate and se various waveforms
- 2012-01-23 18:34:22下载
- 积分：1
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081114
说明： 详细阐述了在ＭＡＴＬＡＢ平台构造m序列的原理，有相关性评估与良好的界面(Detailed structure in the MATLAB platform sequence m principle, assessment of relevance and good interface)
- 2009-08-05 10:40:41下载
- 积分：1
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waterpouring
this is mimo waterpouring system.
- 2010-10-25 18:53:14下载
- 积分：1
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gatbx
generic algorithm code in matlab
- 2012-05-02 19:51:17下载
- 积分：1
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SVD-EOF
基于matlab,采用SVD方法，对数据进行EOF分解，求得基函数(Based on matlab, using SVD method, the data EOF decomposition, obtained basis functions)
- 2014-02-25 10:47:12下载
- 积分：1
