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本文件是因子分析的源代码，代码精要有注释。(Factor analysis of source code)

基于simulink的功率及其功率因素的仿真模型(Based on the power and power factor simulink simulation model)

这是之前上传的Extract_test_IMFCC程序里面调用的子函数，作配合使用，请看清楚再下载(This is one subfunction of Extract_test_IMFCC uploaded before.Since pudn.com cannot upload several functions, they must divided.)

FM modulation (informatif signal, porter signal, Integration, modulation, demodulation)

matlab中模拟的两道地震信号反射同相轴，用riker子波模拟。(matlab to simulate the two-channel seismic reflection phase axis signal with riker sub-wave simulation.)

基于相关算法检测地下管路的漏水点:分别用仪器测量漏水处漏水的声音，两个测井所测得的漏水声音两条波形相似但交错一段时间.(Based algorithm to detect underground pipeline leakage points)

QPSK通过瑞利信道的MATLAB仿真 内含stbc等(QPSK Rayleigh channel through MATLAB simulation)

基于OWTS系统的电力电缆介质损耗正切角检测，能够方便快速的对电力电缆进行检测。(Based OWTS system power cable dielectric loss tangent detection, able to facilitate the rapid detection of the power cable.)

PLL matlab simulation

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)