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changjiangshuizhi_simulation
用Matlab实现模拟长江水质变化情况,数据源来自国家水利部 (changjiang water quality simulation)
- 2011-02-10 11:27:42下载
- 积分:1
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ga_main
这是一个关于遗传算法解觉非线性函数优化问题的函数,通过它,你可以自己设计初始化参数来求解问题(It is used for some very different problems such as some unliner function)
- 2011-05-07 13:02:35下载
- 积分:1
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stochastic-competition-model
stochastic competition model
- 2012-05-02 19:11:24下载
- 积分:1
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H.263
这是一个视频matlab程序,程序比较完整,容易上机验证,(This is a video of matlab program, procedure is complete, easy-on authentication)
- 2010-07-24 10:24:13下载
- 积分:1
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duogongnengludeng
控制路灯的亮灭,控制景观灯,单双路灯控制(Control lights light off, control landscape lights, odd and even street lighting control)
- 2014-02-16 10:14:19下载
- 积分:1
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Arnold000
说明: 这是一个混沌的Anrold变换 他是一次变换加密 是一个混沌加密入门程序(This is a chaotic Anrold transform He is a transformation encryption is a chaotic encryption entry procedures)
- 2021-03-03 15:39:33下载
- 积分:1
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leach5
matlab实现经典的leach(无线传感器网络簇头选择协议)算法(leach algorithm)
- 2012-04-23 18:51:38下载
- 积分:1
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mli0000
MLI vectorielle Simple
- 2012-11-11 04:33:15下载
- 积分:1
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HHT_power-system_power-quality_disturbances-detect
优秀论文及配套源码。Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术,该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列,每一个序列称为一个固有模态函数(IMF),然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱,汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理,将信号中真实存在的不同尺度波动或趋势逐级分解出来,最终用瞬时频率和能量来表征原信号的频率含量。
本文研究了基于HHT的暂态电能质量扰动检测方法,介绍了HHT的基本原理和利用HHT检测电能质量多扰动信号的实现方法。仿真试验表明该方法可以实时检测扰动的起止时刻,持续时间和扰动幅度,适用于电能质量多扰动的监测和辨识系统。
(Hilbert-Huang Transform(HHT) is a new non-stationary signal processing technology,including the Empirical Mode Decomposition(EMD) and Hilbert spectral analysis.In this method,arbitrary non-stationary signals was divided into a series data sequence with different characteristic scales after the first EMD treatment,each sequence is called an intrinsic mode function(IMF),and then each IMF component gained corresponding the Hilbert spectrum though Hilbert spectrum analysis,a summary of all Hilbert spectrum assembled to the spectra of the original signal.In essence,this method is a stable processing for non-stationary signal,which decomposed the different fluctuations or trends in the signal in rum,and represented the frequency content of the original signal using the final instantaneous frequency and energy.
This paper study a method to detect power quality disturbances based on the HHT,in which the principle and the realization of the HHT and the realization of power quality disturbance)
- 2021-04-24 10:48:48下载
- 积分:1
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sync_machines
simpower sync_machines. in matlab
- 2013-08-05 14:18:18下载
- 积分:1