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myDVHOP
说明: 一种基于RSSI的DV-HOP加权算法,该算法基于节点接收信标节点位置元组时的信号强度(RSSI)对邻居节点间跳数进行加权处理,将节点间的跳数与距离相关联,仿真试验结果证明该加权算法可大大提高定位精度。( a RSSI based weighted DV-HOP (RWDV-HOP) Localization algorithm is presented. In this algorithm the hops of adjacent node is weighted by the RSS of flooding packets transmitted between adjacent node. Our algorithm improves the localization accuracy compared with previous algorithms, which has been demonstrated by the simulating results.)
- 2021-03-11 17:49:25下载
- 积分:1
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Communications-Principles_matlab
概率论、随机过程、信号系统、信号交织、脉冲成型、扩频序列、幅度调制、频率调制、相位调试介绍及matlb程序仿真(Digital communication principle Based on the matlab simulation
)
- 2014-11-05 15:45:15下载
- 积分:1
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iir-filter-design
iir滤波器设计,包括 脉冲不变法和双线性变换法等等等(iir filter design)
- 2013-12-22 11:06:33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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B.TECH-PROJECT-PRESENTATION
WIND FORECASTING AND CHOOSING OF TIME SEIRES MODEL
- 2011-10-12 16:54:47下载
- 积分:1
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[2.40]
电子工业出版社 《数字信号处理》第2版课后题MATLAB 2-40题(Electronic Industry Press Digital Signal Processing 2nd edition title after title MATLAB 2-40)
- 2014-12-08 17:06:19下载
- 积分:1
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MATLAB
Reading wave file in matlab and putting into packets.
- 2010-11-16 02:19:20下载
- 积分:1
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Rayleigh_Channel___Avetis_Ioannisyan_16_Dec_10_Up
Rayleigh_Channel based in Jakes model
- 2011-05-03 19:11:57下载
- 积分:1
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wavelet-transform-__mallat
基于matlab平台,用mallat算法对图像进行降噪处理(Based on matlab platform, with mallat algorithm for image noise reduction processing)
- 2013-03-22 12:19:42下载
- 积分:1
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diancichang
用于计算电位。采用有线差分法迭代实现。显示出图像(Used to calculate the potential. Difference method using an iterative wired.)
- 2011-11-19 00:17:16下载
- 积分:1