psk技术实现，并有详细的程序，有助于通信软件的开发

DTMF实时解码，采用goertzel算法，通过监测信号中的两个主要频率从而得出DTMF值-DTMF decoder in real time, using goertzel algorithm, by monitoring the signal so as to arrive at the two main frequency DTMF value

中文RFC文件，无需翻译，对学习很有帮助！

Networking Basics one must posses

仿真通信系统中QPSK的码头代码，大家可以作为参考-Simulation of Communication Systems pier QPSK code, we can serve as a reference

本源代码是一个邮件收发系统，可以实现了简单的文件接受、发送功能-source code is a mail system that can achieve a simple document acceptable, this function

这个也是关于空间谱的matlab 挺好的 可以-This is on the spatial spectrum of matlab can be quite good

USB总线接口芯片CH375的介绍，对于进行USB开发的人都很大的指导作用。-USB bus interface chip CH375 introduction to USB development for people a lot of the guiding role.

VT100终端程序 -VT100 terminal

测试用的端口通讯程序。有点土，但好用得很呢。你就好好看看吧。关键是用dll做的。-test with the community and the application is very good in use

嵌入式linux的web服务器，可以运行于arm、x86平台，用c语言来写的，调用了libcgi库来实现，主要功能就是实现一个学生成绩管理系统，可以注册、登录、录入成绩、删除成绩，查询成绩、退出等功能，数据都是存放在一个linux下的嵌入式数据库sqlite中的。-Embedded linux of web servers, can run in the arm, x86 platform, use c language to write, call the library to libcgi realize, the main feature is the realization of a student achievement management system that can register, login, recording results, delete results, query results from the other functions, the data are stored in a database embedded under linux in sqlite.