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MMGA
说明: 此源码为多变异位遗传算法,具有执行效率高、效果好的特点。(This source is variable ectopic genetic algorithm, with the implementation of high efficiency, good effect.)
- 2010-04-26 23:09:08下载
- 积分:1
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kuangbiao
本程序是在遥感图象处理中第一步,服务于内定向,用来确定框标图象中框标的重心位置.(this procedure is in remote sensing image processing first step in the services within orientation, standard used to determine frame image frame target focus position.)
- 2007-05-05 13:47:44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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MATLAB7.X-ppt
《MATLAB 7.X程序设》(中国水利出版社)一书的ppt教案。对初学matlab语言的同学会有所帮助。内容包括:matlab概述、matlab运算基础、matlab程序设计、数值计算、符号计算、matlab绘图、Simulink仿真环境、Notebook(" MATLAB 7.X established procedures" (China Water Conservancy Press) First book of lesson plans ppt. Matlab for beginner language students will be helpful. Include: matlab outlined, matlab basic computing, matlab programming, numerical computing, symbolic computation, matlab graphics, Simulink simulation environment, Notebook)
- 2009-03-23 10:35:19下载
- 积分:1
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QPSK_peng
OFDM的QPSK调制与解调,有说明,有需要的朋友可以看看(OFDM QPSK modulation and demodulation, a note, a friend in need can look)
- 2014-09-15 20:26:49下载
- 积分:1
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QPSK_oQPSK
本程序,包含QPSK,OQPSK的产生过程,I、Q领路信号抽取,他们的频谱,包络情况,经过带通滤波器后的变化,经过非线性放大器后的频谱变化等。是一个很好的学习例程!(This procedure, including QPSK, OQPSK production process, I, Q signal extraction lead the way, their spectrum envelope case, after band-pass filter after the change, through non-linear changes in the spectrum after the amplifier. Is a good learning routines!)
- 2011-12-29 20:58:54下载
- 积分:1
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spb
三次样条曲线函数 提取数据的样条函数 仅供参考 (spline function using spline interpolation to strike a group of data points in the points in the derivative (only provide functions))
- 2009-11-02 09:19:57下载
- 积分:1
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pid_dmc2
动态矩阵控制算法与PID算法结合,有很强的理论性,是毕业设计的好程序(Dynamic Matrix Control algorithm combined with the PID algorithm, is very theoretical, is a graduate design program)
- 2020-09-06 14:08:08下载
- 积分:1
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Radar1
模拟雷达的一个小程序,扫面线周期性扫描,显示检测出来的异常点(A small program to simulate the radar sweep noodles periodic scanning, display anomalies detected point)
- 2014-10-17 16:00:47下载
- 积分:1
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Maximum-Entropy
In the distributed processing, where common labeled data may be not
available for designing classifier ensemble, however, an ensemble solution is
necessary, traditional fixed decision aggregation could not account for class prior
mismatch or classifier dependencies in electronic technology. Previous
transductive learning strategies have several drawbacks, e.g., feasibility of the
constraints was not guaranteed and heuristic learning was applied. We overcome
these problems by developing improved iterative scaling (IIS) algorithm for
optimal solution. This method is shown to achieve improved decision accuracy
over the earlier approaches in electronic technology
- 2015-03-18 21:44:09下载
- 积分:1