一个用matlab编写的时钟程序，包含了数字钟和传统显示的圆形中，背景是可爱图片。运行时和电脑同步。-a program on a clock which contains a traditional clock and a numerical one，with a lovely background picture。when the program runs ，the clock will keep the pace with the correct time of the computer。

数字通信信号的码元同步程序，在MATLAB环境下编写的，可用来提取数字通信信号的时钟信息-Symbol digital communication signal synchronization program written in MATLAB environment, can be used to extract the clock information on digital communication signals