DBR-caculation

GM(1,1)灰色预测,作为例子，可以很好地掌握灰色预测最基本的东西，希望对大家有用(GM (1,1) gray prediction, as an example, can be a good grasp of the most basic things gray forecast, we hope to be useful)

本源码为利用光流法提取视频关键帧的matlab程序实现，也是本文基于内容的视频检索的论文所写的代码，需要的可以参考！(The source for the use of optical flow extracted keyframe Videos matlab program implementation, but also this article content-based video retrieval dissertation written code, can refer to the required!)

说明：  MATLAB绘图高质量的地理或地质图片插件(MATLAB geographical or geological mapping of high-quality pictures plug-in)

MATLAB simulation of 3-phase PWM rectifier. Sine PWM is used as modulation technique. Modulation index is 0.8.

说明：  对s进行小波分解，提取小波分解的低频系数，提取小波分解的各层高频系数，绘出各系数的图形(Wavelet decomposition of the s to extract the low frequency coefficients of wavelet decomposition to extract the layers of high-frequency coefficients of wavelet decomposition, the coefficients of the graphics drawn)

heat one dimensional CFD

buck boost varaible voltage by state space equations

说明：  分为三个函数，第一个函数的功能是用于读取ecg信号，找到小波变换模极大序列；第二个函数是子程序，用于多分辨率分解，使用 A trous 算法在分解的过程中，同时给出各级的细节和概貌，它们和原数据有着同样的长度；第三个函数是函数子程序，用于多分辨率分析中的重建。(Divided into three functions, the function of the first function is used to read the ecg signal, find the wavelet transform modulus maxima sequence second function is a subroutine for use in multi-resolution decomposition, the decomposition algorithm using A' trous process, and gives details of all levels and profiles, they are the original data have the same length third function is a function subprogram, for multi-resolution analysis of the reconstruction.)

lee filter for speckle reduction

speed control of brushless dc moter