guangfu_SVPWM_Islanding_Vd90

目前，互联网上HHT信号处理技术有 三种实现方式，采用MATLAB编程语言，一种是法国研究者设计的G Rilling 2007 另一种是MATLAB文件交换中心由Alan Tan开发的plot_hht程序包，第三种是台湾中央大学数据研究中心提供的EEMD包。 其中，我使用了plot_hht程序包，其使用了三个终止条件，驻留分量的单调性，极值点与零点的个数相差不超过1，还有黄锷1998经典文献提出的 SD>0.1，单调性的判断，并不是去判定驻留分量是否是单调函数，而是当曲线是双曲线时，循环结束，由于没有考虑端点效应，程序比较简洁，好读懂，大家 学习HHT可以从这个程序包入手，在此抛砖引玉，希冀有人能比较这三种不同的算法的性能和时间复杂度，以及对各种信号的适应性。 (There provides three types of HTT program packages: one developed by France researcher G. Rilling 2007, the other provided by by Alan Tan from Matlab file exchange center and the third one by Taiwan Central University Data Research Center. Please start from the simple one by Tan to learn more.)

Differential Pulse Code Modulation  DPCM is the coding method for DC coefficients

The most ofICI avoidance algorithms divide UEs into cell edge and cell centre users based on static thresholds such as path loss, SINR and geometry factors. However, in an actual communication environment, the UE distribution as well as the shape of a cell can be changed. Therefore selection of the cell edge bands is difficult and needs to be optimized according to the time variation environment. Reference [6] proposed an ICI avoidance algorithm that can change cell edge bands dynamically. For each active UE and every time gap (the update duration of CEU/CCU), the threshold is updated based on SINR in order to keep the ratio of number of CEUs and CCUs constant. Then, cell weight is calculated to follow the instant changing of network.

基于matlab求解公切线，使用了网络搜索法(Based on matlab solving common tangent, using a web search method)

摄影定理原理 对测方图像 连续相对定向 并进行误差分析 单位权中误差(Photography theorem principle of the measuring square image is continuous relative orientation and error analysis of unit weight error)

matlab编写的用lk算法进行光流计算的程序，很好的例程(lk algorithm using matlab prepared for optical flow calculation program, a good routine)

说明：  假设时变系统的特性用一个系数为时间函数的n阶微分方程的形式来描述，仿真该系统(Assuming time-varying characteristics of the system as a function of time with a coefficient of order n in the form of differential equations to describe the simulation of the system)

用Matlab实现的倒立摆控制 (Using Matlab to achieve inverted pendulum control)

随机微分方程仿真和估计~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(Simulation and Estimation of Stochastic Differential Equations with Matlab)

输入各个字符及对应出现的次数 ； 建立赫夫曼树并对各个字符进行编码 ；然后 对 输入 的 二进制 串进行 译码(Enter the various characters and the corresponding number of emerging establish Huffman tree and the various characters coding then enter strings of binary decoding)