PackingProblem

PMSG风力发电仿真模型,可以进行风力发电系统的风能追踪模拟和变桨距控制(PMSG wind simulation model can track the wind power system simulation and wind pitch control)

MATLAB图像处理的资料，包括图像倾斜校正，图像腐蚀和膨胀(matlab image erosion and dilation study)

Neural Network Training using MATLAB

小波变换进行变速箱故障诊断 首先将s1和s2信号时域谱（s1代表维修前的振动信号，s2代表维修后的振动信号），画出来进行对比，会发现s1信号的振动幅值会比较高；然后对s1和s2分别进行小波分解并画出各层的时域谱，只对比s1和s2分后的最高时域谱，s2更加的具有周期性，且幅值较小，s2周期性不够明显，且振动过于密集。分析完时域谱后开始分析频谱，首先对原信号s1和s2fft转换，得到频谱图，如图，然后再对小波分析后高频部分进行fft转换，做出频谱图。对比后我们发现，在f 2375HZ出（也就是齿轮的啮合频率），s1信号频谱幅值会有急剧的升高，然后，其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。(Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha)

本文件是关于如何用牛顿法进行潮流计算的指导书，学习者可以根据书中的步骤实现程序的编写，提高程序编写能力。(This document is about how to use Newton s method flow calculation instructions, learners can write a program in accordance with the steps in the book to improve programming skills.)

说明：  使用高斯混合模型（Gaussian Mixture Model）拟合风电场中预测误差分布(Using Gaussian mixture model to fit prediction error distribution in wind farm)

说明：  层空时码有三种普遍的检测算法：最大似然（Maximum Likelihood ,ML）检测算法、迫零（zero forcing ,ZF）检测算法、最小均方误差（Minimum Mean Squared Error,MMSE）检测算法。(There are three layers in general space-time code detection algorithms: maximum likelihood (Maximum Likelihood, ML) detection algorithm, forcing zero (zero forcing, ZF) detection algorithm, minimum mean square error (Minimum Mean Squared Error, MMSE) detection algorithm.)

该模型是一个模拟信号数字化传输系统，该模型只通过了PCM编码模块和译码模块(The model is an analog signal digital transmission system, the model only through the PCM coding and decoding module module)

此实验是关于详细的采样定理，有设计与实现及MATLAB程序代码。(It is useful.)

说明：  在耳语转化为正常音的过程中需要到的一些简单实用语音处理的程序(Whisper into the normal sound in the process to go to some of the simple and practical procedure for speech processing)