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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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Unitary--ESPRIT
this code realize the two dimention esprit algorithm
- 2013-01-03 17:27:24下载
- 积分：1
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seedone
从国外网站上搜来的图像分割算法中的区域生长法的Matlab源代码，可用于MRI图像等，效果不错，分享给大家！(share a matlab code of segmentation algorithm about growth in the region a foreign website ，which runs well.)
- 2015-01-01 18:00:27下载
- 积分：1
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EKF
MATLAB三种卡尔曼滤波对比，分别是扩展卡尔曼滤波EKF，不敏卡尔曼滤波UKF，粒子滤波PF。有跟踪效果和估计值误差。(MATLAB the three Kalman filtering contrast, extended Kalman filter EKF, Unscented Kalman Filter UKF, particle filter PF. Tracking effect and the estimated value of the error.)
- 2013-04-08 19:10:26下载
- 积分：1
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zf
v-blast结构的迫零检测 无干扰消除和理想干扰消除对比(v-blast ZF )
- 2013-12-14 21:22:52下载
- 积分：1
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hengjeng_v72
小波包分析提取振动信号中的特征频率，IDW距离反比加权方法，包括随机梯度算法，相对梯度算法。( Wavelet packet analysis to extract vibration signal characteristic frequency, IDW inverse distance weighting method, Including stochastic gradient algorithm, the relative gradient algorithm.)
- 2016-05-30 15:00:29下载
- 积分：1
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Matlab100
说明： Matlab精彩编程一百例，图形图像处理，函数处理(Exciting one hundred cases of Matlab programming, graphics, image processing, function handle)
- 2011-04-18 16:31:24下载
- 积分：1
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ceshi
这是利用一个simulink环境下简单得控制，希望对大家有帮助，谢谢！(This is the use of a simple to control the simulink environment, we want to help, thank you!)
- 2011-10-22 14:53:39下载
- 积分：1
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facedetect
利用matlab实现了人脸检测的功能，主要是利用人脸颜色特征向量。(Matlab face detection function, face color feature vector.)
- 2012-11-06 21:13:24下载
- 积分：1
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NSGA-II
matlab环境下实现的非支配排序遗传算法（NSGA-II），该算法在快速找到Pareto前沿和保持种群多样性方面都有很好的效果(matlab environment to achieve non-dominated Sorting Genetic Algorithm (NSGA-II), the algorithm quickly find the Pareto frontier and maintaining the diversity of the population has a good effect)
- 2021-03-30 20:19:09下载
- 积分：1
