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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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tsinghua_shanhao06_jingdianpuguji
本程序是经典谱估计方法的程序，仿照＜数字信号处理＞胡广书．包含了书中后面三章的所有方法．另外还有ＦＩＲ，ＩＩＲ数字滤波器的去噪方法，ＳＶＤ特征值去噪，信噪比的计算等等．是一经典的程序组．希望和所有人共享(this procedure is classic method of spectral estimation procedures, modeled on the "Digital Signal Processing" Mr Kwong book. The book contains three chapters behind all the way. Another FIR, IIR digital filter de-noising, SVD eigenvalue denoising, the signal-to-noise ratio calculation, and so on. Is a classic procedure group. All sharing hopes and)
- 2007-03-04 18:34:54下载
- 积分：1
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MQAM_SNR
对实带通和复基带的MQAM的信噪比进行仿真，绘制信噪比曲线、眼图和星座图，在MATLABR2009b上可正常运行(real bandpass and complex baseband simulation of signal to noise ratio of MQAM, including signal to noise ratio curve drawing, eye diagrams and constellation diagrams, can be run in MATLABR2009b)
- 2011-07-01 09:46:48下载
- 积分：1
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Allan
MEMS陀螺的allan方差程序，运行已通过(Allan variance procedure of the MEMS gyroscope, the run has passed)
- 2012-07-25 11:04:31下载
- 积分：1
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GridStorageBatt
grid energy storage battery
- 2014-11-13 00:43:43下载
- 积分：1
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PV_MPPT
PV_MPPT 很好的光伏最大功率跟踪控制(PV_MPPT good photovoltaic maximum power tracking control)
- 2013-05-24 18:23:58下载
- 积分：1
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jrhcgvbh
搭建OFDM通信系统的框架，包含收发两个客户端的链路级通信程序,考虑雨衰 阴影 和多径影响，与理论分析结果相比，调试通过可以使用，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，本程序的性能已经达到较高水平，这个有中文注释，看得明白。( Build a framework OFDM communication system, Contains two clients receive link-level communications program, Consider shadow rain attenuation and multipath effects Compared with the results of theoretical analysis, Debugging can be used, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, The performance of the program has reached a high level, The Chinese have a comment, understand it.)
- 2016-04-02 22:39:17下载
- 积分：1
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Matlab_LMS4
自适应线性预测编码问题，计算LMS迭代时预测误差和系数误差的功率谱，绘出残余能量曲线和学习曲线(Adaptive linear predictive coding problem, when calculating the LMS iterative prediction error and coefficient error power spectrum, plotted the residual energy curve and learning curve)
- 2008-04-25 10:24:49下载
- 积分：1
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exam6_2
说明： 等参元计算应力应变问题的有限元程序,matlab编写。(finite element program for plane stress problems)
- 2009-09-03 01:23:01下载
- 积分：1
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basicprogram2
MATLAB Basic codes for finding mahanobis distance,gaussian,multivirate
- 2013-12-07 01:30:08下载
- 积分：1
