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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
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matlab
说明: matlab_数字图像处理源程序,学习之需要(matlab )
- 2011-02-22 20:05:20下载
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backpropagation
A MLP code with backpropagation training algorithm designed for aproximation of functions problems.
- 2010-11-17 06:10:15下载
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lgelangrichazhi
说明: 这是一个拉格朗日的插值算法的matlab的实现(This is a Lagrange interpolation algorithm to achieve the matlab)
- 2009-08-19 17:41:49下载
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bluetooth_17
Bluetooth Matlab/Simulink simulation Module
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channel_estimator
信道估计程序\MIMO-OFDM 系统的信道估计程序,包括导频设计,信道建模,常见的信道估计方法(Channel estimation program MIMO-OFDM system channel estimation procedures, including the pilot design, channel modeling, common channel estimation method)
- 2020-07-10 14:19:04下载
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GUIBookChapter10MFiles
graphic user interface m files of matlab
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GetStepRespData
从曲线图采样数据拟合曲线,采用不同的插值方法,得到不同的插值曲线(Sampling data from the curve fitting curve)
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AdaptiveArithmaticCoding
自适应算术编解码,按paper编写,压缩包中附有paper。(adaptive arithmetic coding and decoding, prepared by the paper, compressed paper attached.)
- 2007-04-18 11:48:48下载
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JPEG
JPEG compression in image processing using DCT
- 2012-06-28 18:56:52下载
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