qam的调制程序，可以参考查看，对学习有帮助

面向通信控制器硬件的通信程序设计：基于PC标准通信口的通信程序设计，基于MODEM的通信程序设计，基于网络适配器的通信程序设计。 网络通信系统的应用实验 -Communication controller hardware-oriented communications program design: Based on standard PC communications port communication program design, based on the MODEM communications programming, network adapter based on the design of communication procedures. Network Communication System Experiment

使用vb制作的电话拨号程序，信号清晰稳定，测试的时候需要语音猫-Uses the vb develop the telephone dials the number procedure clearly, the signal is stable, test time needs the pronunciation cat

一个USB源程序，很好用，修改一下就可用，

Author: wei liu Summary: simulation of binary and non-binary bch decoder MATLAB Release: R14SP1 Required Products: Communications Toolbox Description: simulation of binary bch decoding algorithm for bch(n, k) with t bits error correction capability.

一个很不错的语音电话源码-a very good voice source

短信PUD开发文档,通过AT指令发送手机短信,中文通过PUD编码.-Message PUD development documents, through the AT command to send the phone message, the Chinese through the PUD code.

该程序为QPSK解调程序，符号速率2M,采样速率为64M-The program procedures for QPSK demodulation, symbol rate of 2M, the sampling rate of 64M

下载别人的检查猫状态的源.他能很直观的看到猫的状态.-download other people"s cats check the state of the source. He can see very intuitive cat state.

YModem 的上传协议。 可做C 等相关参考。 -From the YModem agreement. Do C and other related reference.

XModem协议源码，众所周知的一个协议的源码，搞arm的第一个程序基本上就是这个-XMODEM protocol source code, as we all know the source of an agreement, to engage the first arm is basically a program that