QPSK

一个很有用的matlab详细使用教程，适合初学者使用(A useful use of matlab detailed tutorial for beginners)

source code identification using matlab

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.)

一篇很好的基于特征点的图像配准算法研究论文，很有参考意义！(A good feature points based image registration algorithm research papers, meaning a good reference!)

将多个变量通过线性变换以选出较少个数重要变量,是一种多元统计分析方法。(Analysis of the relationship between several variables and a special variable )

串口发送接收数据。可配置端口，波特率等。 发送可选择ASCII方式或HEX方式。 中断方式接收数据。 可以通过ADC和MCU可以把数据通过 串口直接发送到PC上让MATLAB分析(receiving data. Configurable ports, baud rate, and so on. Send option HEX or ASCII mode. Interrupt receiving data. Through the MCU and ADC data can be sent directly through the serial port to the PC for analysis of MATLAB)

说明：  一种简单的A*寻路算法，可在命令行按要求输入相应起点和终点的坐标。适合于初学者(A simple A* algorithm for path planning, which can input the coordinates of the starting point and end point on the command line as required. It is suitable for beginners.)

一种matlab匹配算法，计算图像的7个不变矩 (A matlab matching algorithm to calculate the images of seven invariant moments)

主要介绍求根music算法，对于初学者可以多看一下。(Mainly introduces roots music algorithm for for beginners can read it.)

S函数的编写，对于一个学控制的同学和MATLAB的同学很有用的(The preparation of S-function, a learning control for students and the students very useful MATLAB)