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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
- 积分:1
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Wind_Turbine_modeling
modeling and control of fully wind turbine system
- 2017-12-13 06:14:53下载
- 积分:1
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DSSS-communications-system
a document explaining a DSSS transmision channel and how to make a rake receiver with simulations
- 2013-01-19 20:15:00下载
- 积分:1
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NeuralNetworkMatlab
NeuralNetworkMatlab
神经网络讲义的matlab源代码(NeuralNetworkMatlab neural network overhead of Matlab source code)
- 2006-08-10 14:34:47下载
- 积分:1
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plot_modified_FWGN
用MATLAB仿真出改进FWGN信道模型 优于普通FWGN信道模型 两者可以作比较(MATLAB simulation of improved FWGN channel model is superior to both ordinary FWGN channel model can be compared)
- 2014-09-22 07:20:15下载
- 积分:1
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Matlab
本上传资料为maatlab教程,可通过此教程学习matlab,涉及面广。(The upload information to maatlab tutorials, available through this tutorial to learn matlab, involving a wide range.)
- 2013-11-01 14:30:26下载
- 积分:1
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SOMSUANFAMATLAB3
这个程序再matlab2012b版本上调试成功,以前在毕业设计的时候在网上找到的资料,希望对大家有用,SOM算法,matlab程序,是经典的教科书的例子程序(This program debug version then matlab2012b success in graduate design information previously found on the Internet when we want to be useful, SOM algorithm, matlab program, is a classic textbook example of program)
- 2014-01-16 13:10:24下载
- 积分:1
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MATLABDOCUMENT
一些关于matlab的技术文档,对使用matlab的人,有很大的帮助(Matlab on the technical documentation, on the use of matlab who have great help)
- 2007-09-09 19:42:04下载
- 积分:1
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Wind-with-Synch
Wind System with Sychrounous Generator
- 2014-12-23 08:29:05下载
- 积分:1
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xiangganban
处理相干斑的程序,可以借鉴和学习。经过本人编写(Speckle processing program, you can learn from. After I write)
- 2013-09-15 21:23:57下载
- 积分:1