DE-survey

　Kmeans 算法是聚类分析中使用最为广泛的算法之一，其每个类别均用该类中所有数据的平均值(或加权平均)来表示，这个平均值即被称作聚类中心。该方法虽然不能用于 类别属性的数据，但对于数值属性的数据，它能很好地体现聚类在几何和统计学上的意义。(Kmeans algorithm is the most widely used cluster analysis algorithm, each category with the average of all data in the class (or weighted average) to represent the average is known as the cluster center. Although this method can not be used The class attribute of the data, but data for numeric attributes, it can well reflect the significance of clustering on the geometry and statistics.)

用matlab实现维特比算法译码，程序简单易懂，自己编写的。(Using matlab Viterbi decoding algorithm, the program is simple and easy to understand, I have written.)

用matlab的9个编程例子附程序，可以更好的理解掌握MATLAB，供大家学习与交流。(9 programming example attached matlab program, you can better understand and grasp the MATLAB for everyone to learn and exchange.)

说明：  本文件夹包含的是针对电话交换系统的C51程序源代码，包含了电话串口之间的通信功能，以及控制回铃音的程序源代码(This folder contains the telephone exchange system for the C51 source code, including a telephone communication between the serial port, and control ring back tone of the program source code)

用matlab程序编写的，用于计算机视觉或摄影测量中图片的特征点提取。(Using matlab programming, for computer vision or photogrammetry image feature extraction.)

线性分组码的实现，学习线性分组码的编码原理的很好的材料(Realization of linear block codes)

包含matlab的使用频率较高常用命令及其功能，便于查询，方便快捷(Contains a higher frequency of use matlab common commands and their functions, easy to check, convenient)

Improved Leach protocol

说明：  《MATLAB基础及经济管理建模》张晓黎 著(Matlab foundation and economic management modeling by Zhang Xiaoli)

伺服系统PID控制在MATLAB中的程序源代码(PID)