文件为Delphi下的.pas源文件，该文件为一个串口通讯的封装类．...

本程序是用MATLAB语言，它包含每个块的物理层调制等描述，交织和所有的技巧和方法的物理层

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

用EditPlus打造C#编程环境，简单，快捷。方便简单源代码的编译。-EditPlus build with C# Programming environment, simple, fast. Easy to compile source code.

There has the LNA design, it use more in wireless comunication system.

ISO/IEC 14443 标准时每一个从事rfid 13.56Mhz开发工作的人员需要了解的关键技术。-ISO/IEC 14443 standard rfid 13.56Mhz every one involved in the development staff need to understand the key technologies.

linux已经成为潮流，linux系列文章很多，这个文章写得比较好，系列讲座比较全，故推荐-linux has become the trend, many linux series of articles, the articles were excellent, Compare lecture series, it recommended

关于超宽带系统性能的分析的一些实用程序，请大家多支持-on UWB system performance analysis of some practical procedures, we support more

nat穿越开实时通讯开发中是个不可避免的问题，这是个英文文档，希望能给大家带来一些帮助-nat through the development of open real-time communication is inevitable, which is English document, I hope everyone can help bring some

AB的PLC读写程序VB-AB PLC literacy procedures VB

Sample LNS LonWorks Application