实现维特比的软判决译码仿真，比较软判决硬判决的性能

matlab程序设计入门 广州大学土木工程学院力学教研室编写 2004年2月(matlab programming entry Guangzhou University School of Mechanics, Civil Engineering Department in February 2004, written)

说明：  document of image compression

Haskell code defining syntax und semantics of the "while language" with welltyped predicates. Inspired by "Semantics With Applications" (Nielson).

一个用matlab GUI制作的登录界面，包括输入用户名和密码，点击确定即可登录界面；(it is for a system of a user use password to go to the system)

【实例简介】Matlab仿真及其在光学课程中的应用（第三版），课件，书内例题程序，课后习题答案，自学的一大应助力。

计算互信息非常有用的一组程序,计算晶粒的生长，入门级别程序,粒子图像分割及匹配均为自行编制的子例程，对于初学者具有参考意义，这是一个好用的频偏估计算法的matlab仿真程序,数据包传送源码程序。

介绍MATLAB的基本操作及MATLAB程序语法等(Describes the basic operation of MATLAB and the MATLAB program gramma and some other skills.)

说明：  function [ret,x0,str,ts,xts]=s4(t,x,u,flag) s4 is the M-file description of the SIMULINK system named s4. The block-diagram can be displayed by typing: s4. SYS=s4(T,X,U,FLAG) returns depending on FLAG certain system values given time point, T, current state vector, X, and input vector, U. FLAG is used to indicate the type of output to be returned in SYS.

说明：  频域的模态参数识别方法之一，可以对振动信号进行分析处理，得出结构的固有频率，阻尼比，振型系数，方法很好，程序完整，(Frequency-domain modal parameter identification methods that can analyze the vibration signal processing, draw the structure of natural frequencies, damping ratio, mode shape coefficient, very good method, program integrity,)

说明：  基于遗传算法（GA）设计了pid控制器，仿真结果良好。(based on genetic algorithm (GA) pid controller design, simulation good results.)