PID

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)

计算hurst指数，包含很多个Hurst指数方法。使用简单(Calculated hurst index contains many a Hurst index method. Simple)

用c++编的matlab程序.是变步长方程解法.希望能给大家帮助,都是老师给布置的作业!谢谢!(using Matlab c addendum to the proceedings. Is a variable step equations. I hope that it provides help, teachers are to the layout of operations! Thank you!)

CUMCM 2011A 等高线CUMCM 2011A 等高线CUMCM 2011A 等高线CUMCM 2011A 等高线(CUMCM 2011A CUMCM 2011A CUMCM 2011A CUMCM 2011A CUMCM 2011A CUMCM 2011A CUMCM 2011A CUMCM 2011A )

This book is useful for modeling the wireless channel with common noise and affects

几个简单的表白小程序，用matlab写的，可以装酷(A few simple expression small program, written in MATLAB, can be cool.)

实现拉普拉斯变换的图像过滤程序，实用性广泛(Laplace transform of the image to achieve filter)

开关磁阻电动机仿真，模糊pi控制，转矩电流双闭环(Switched reluctance motor simulation, fuzzy pi control, torque current double closed loop)

仿真五星红旗运动 体现了其强大的仿真功能 很炫(The simulation of the five-star red flag movement of its powerful simulation capabilities shining)

说明：  利用局部平衡磁化强度理论对J-A模型进行修正后的实际磁化强度强度、非磁滞磁化强度曲线随应力变化情况对比(Calculate the hysteresistc magnetization and anhysteresistc magnetization vs stress)