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于 2016-02-14 发布文件大小:125KB

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下载积分: 1 下载次数: 1

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代码说明：

说明：人眼提取，并使用libsvm进行睁闭分类的训练和测试(Position the area of eyes.Train and test the state of eyes by libsvm.)

文件列表：

s1

..\5.BMP,11382,2009-08-17
..\6.BMP,11382,2009-08-17
..\7.BMP,11382,2009-08-17
..\8.BMP,11382,2009-08-17
..\9.BMP,11382,2009-08-17
..\data.mat,18709,2015-12-22
..\svmceshi.m,320,2015-12-29
..\Untitled2.asv,249,2014-07-08
..\Untitled2.m,302,2014-07-08
..\Untitled3.asv,1354,2015-12-25
..\Untitled3.m,1353,2015-12-29

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Reassigned-Cohen-Class
介绍了 Cohen类双线性时频分布并针对交叉干扰项影响无法完全消除的问题进行了重排时频变换以提取及分辨含有白噪声和窄带周期干扰的局部放电信号。处理仿真和现场检测到的局部放电超声信号时根据白噪声和窄带周期干扰信号在时域上的平稳性特性发现重排 Cohen类时频变换方法不仅可以很好地将局放信号和背景噪声以及窄带周期干扰信号分辨开来,而且大大减弱并抑制了交叉干扰项的影响,保持了更高的时频分辨率和时频聚集性,从而验证了重排 Cohen类时频变换方法的有效性。 (In order to express the partial discharge ( PD) information of gas insulated switchgear ( GIS) in time-frequency domain, weintroduced theCohen? s class bilinear time-frequency distribution and its reassigned time-frequency transform method to pick up and distinguish theultrasonic signals in field from the whitenoises and narrow band periodic interference signals using the acousticemission ( AE) technology. After the processing of the simulated and PD ultrasonic signals in field, and according to the stationary feature of white noises and narrow band interference signals, wedraw a conclusion that the reassigned time-frequency distribution method can not only distinguish thePD signal from back ground noises and narrow band interference signals, but also decrease and restrain the influenceof cross-items, and acquire better time )

2013-06-17 09:57:55下载

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基于有限元法的振动求解，在matlab 平台(matlab vibration FEM)

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2008-09-22 09:59:16下载

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正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术以其频谱利用率高和抗频率选择性衰落强等优点，成为下一代移动通信中最具竞争力的关键技术之一(OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology for its high spectrum efficiency and strong anti-frequency selective fading, etc., to become the next generation of mobile communications in the most competitive one of the key technologies)

2009-06-12 14:00:59下载

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采用U函数余项式反演三维密度界面，其布格重力异常采用Parker法计算(U-function density of more than three-dimensional inversion-type interface, the Bouguer gravity anomaly calculated using Parker)

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录制一段噪声，利用matlab对该材料进行声音的频谱分析。(Record a noise, the use of the material to matlab sound spectrum analysis.)

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抓取电脑屏幕。利用MATLAB实现print screen的功能(Capture the computer screen. Use MATLAB to achieve print screen function)

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s1

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