Control the mouse with serial port and Windows Media Player 11

中文RFC文件，无需翻译，对学习很有帮助！

在线书店系统 本系统在界面上设计上都采用模块化程序设计，将很多页面共有的部分集成到同一个页面-online bookstore system of the system at the interface are designed modular programming, many pages will be part of a total integrated into pages with a

最新的exosip2-3.0.0源码,供对SIP协议栈有兴趣的同道研究-latest exosip2- 3.0.0 source for the SIP protocol stack are interested in research fellow

USB接口，CH375芯片读写U盘的部分程序段。 检测U盘是否正常工作。-USB interface chip CH375 U disk read and write the part of the process. Detection U-normal work.

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第 4 部分卫星通信：信号畸变和错误他们与沟通的关系通道规格通信问题信号格式和扭曲信号错误相位噪声群时延失真振幅失真联合的信号扭曲邻频道干扰时间域效应摘要

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这是一篇很大的程序，有多种功能，可以很好地描述MIMO-OFDM系统，也可以改不同的参数，达到仿真比较的结果，这是一篇不错的程序，大家可以参考它，进行多种改进

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

一个简单的通讯录，自己做的，多多关照，应该能通过审核-A simple address book, make their own, and lot of attention, it should be through the Audit