Please read your package and describe it at least 40 bytes in English. System...

著名的IEC60870－5－103的实现源代码-famous IEC60870-5-103 to achieve the source code

Siemens MC35i AT command set

串口通讯实现文件传送，对vb下学习串口通讯有很好的借鉴-com file

中文RFC文件，无需翻译，对学习很有帮助！

MATKAB实现CDMA System 仿真-Coaxial Cable Based CDMA System Simulation

本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF signals, mainly related to the telephone dial tone of the basic principles of synthesis and identification of the main methods, the use of MATLAB software and the FFT algorithm on the telephone communication system dial tone Synthesis and Recognition . And further the use of MATLAB in the production of graphical user interface simple and intuitive GUI interface simulation. Able to take advantage of matrix synthesis of different fundamental frequency 0- 9 different keys of the dial tone and be able to different dial tone to be the correct identification, the dial tone from a telephone number to resolve the process of completion of the telephone dial tone system, a simple experiment simulation

滤波器设计1.rar-Filter Design 1.rar

GSM通讯源码，采用C++语言，用VC6.0编辑器编写的代码，对于挂接GSM模块后，能正常的与手机进行短信的收发，才用消息队列，开辅助线程对短信进行接收、解析、读取，对发送短信和接收短信，都采用消息队列的模式进行收发。非常好用。对搞GSM模块上位机开发的程序员非常有帮助

清华大学 博士生前沿课 通信和信息系统中的电磁波技术-Tsinghua University doctoral student class cutting-edge communications and information systems technology in electromagnetic

周立功lpc210x开发发光盘上的文档，-development of the CD-ROM documentation,