vmd

When we decimate the signal, only the sampling rate decreases but the frequency content remains same

KNN Classification Code Matlab

Z源逆变器的光伏系统仿真，对象是直流无刷电机，理论很深，对写论文有帮助(Z-source inverter PV system simulation, the object is a DC brushless motor, deep theory, help to write papers)

K最邻近密度估计技术是一种分类方法，不是聚类方法。 不是最优方法，实践中比较流行。 通俗但不一定易懂的规则是： 1.计算待分类数据和不同类中每一个数据的距离（欧氏或马氏）。 2.选出最小的前K数据个距离，这里用到选择排序法。 3.对比这前K个距离，找出K个数据中包含最多的是那个类的数据，即为待分类数据所在的类。(K nearest neighbor density estimation is a classification method, not a clustering method. It is not the best method, but it is popular in practice. Popular but not necessarily understandable rule is: 1. calculate the distance between the data to be classified and the data in each other (Euclidean or Markov). 2. select the minimum distance from the previous K data, where the choice sorting method is used. 3. compare the previous K distances to find out which K data contains the most data of that class, that is, the class to which the data to be classified is located.)

Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after decomposition) is distributed as water-filling algorithm

说明：  视屏开发程序，主要是客服端代码，已经在应用中使用(video client develop)

this is the code for repetition code and ostbc code

Modeling and simulation of longwall scraper conveyor considering operational faults (1)

混沌时间序列分析及其应用，武汉大学出版，吕金虎等。(Chaotic time series analysis and its applications, Wuhan University Press, the METEOROLOGICAL etc..)

本matlab程序用乘子法求解多元模型的最小值（给出初始点和精度要求条件）。(The matlab program for solving the minimum multivariate model using multiplier method (given initial point and precision conditions).)