muestreo

EMD的Toolbox及使用方法 经验模态分解（Empirical Mode Decomposition, 简称EMD）是由美国NASA的黄锷博士提出的一种信号分析方法.它依据数据自身的时间尺度特征来进行信号分解, 无须预先设定任何基函数。这一点与建立在先验性的谐波基函数和小波基函数上的傅里叶分解与小波分解方法具有本质性的差别。正是由于这样的特点, EMD 方法在理论上可以应用于任何类型的信号的分解, 因而在处理非平稳及非线性数据上, 具有非常明显的优势。所以, EMD方法一经提出就在不同的工程领域得到了迅速有效的应用, 例如用在海洋、大气、天体观测资料与地震记录分析、机械故障诊断、密频动力系统的阻尼识别以及大型土木工程结构的模态参数识别方面。本工具书主要分以下几个部分：导论、非稳态信号介绍、一维时频信号分解、二维时频信号分解、时频影像信息提取等。 (Time frequency toolbox for use with MATLAB The Time-Frequency Toolbox has been mainly developed under the auspices of the French CNRS (Centre National de la Recherche Scientifique). It results from a research effort conducted within its Groupements de Recherche ”Traitement du Signal et Images” (O. Macchi) and ”Information, Signal et Images” (J.-M. Chassery). Parts of the Toolbox have also been developed at Rice University, when one of the authors (PG) was visiting the Department of Electrical and Computer Engineering, supported by NSF. Supporting institutions are gratefully acknowledged, as well as M. Guglielmi, M. Najim, R. Settineri, R.G. Baraniuk, M. Chausse, D. Roche, E. Chassande-Mottin, O. Michel and P. Abry for their help at different phases of the development.)

基于短时傅里叶变换的非平稳信号的时频分析(Based on Short time fourier transform,signal s time-frequecy analysis.)

说明：  用MATLAB编的边缘检测算子，包括Robert算子、sobel算子、prewitt算子。自己编写的，有利于初学者理解边缘检测算子的具体实现过程，将结果与MATLAB函数实现的结果作了比较。(MATLAB code with the edge detection operator, including the Robert operator, sobel operator, prewitt operator. I have written will help beginners to understand the specific edge detection operator implementation process to achieve the results with the results of MATLAB functions are compared.)

matlab using image colour

针对偏微分方程的MATLAB解法，主要研究微分方程(组)的数值解法（近似解），重点介绍 Euler 折线法．(For the solution of partial differential equations MATLAB, mainly studies the differential equation ( Group ) numerical method ( approximate ), introduced Euler broken line method.)

计算同轴谐振腔的一个小软件，是基础学习的不错的例子(Coaxial Resonator calculation of a small software is the foundation of learning good example! !)

MATLAB一些实用技巧 与大家分享 希望能对初学者有帮助(Some MATLAB practical tips )

采用AFC技术来锁定频，采用Garden技术进行定时恢复，采用Costas环进行相位的锁定(Use technology to lock the frequency of AFC, using Garden timing recovery techniques using Costas loop for phase locking)

matlab解数独（包含文档）By Cleve Moler, MATLAB发明人(solve sudoku with matlab (document included) By Cleve Moler, inventor of matlab)

基于FFT的自相关函数快速计算方法估计出自相关函数(Fast calculation method based on the FFT of the autocorrelation function is estimated from the correlation function)