qam的解调程序，可以参考，对学习有帮助

Rayleigh channel simulation

车载终端汇编程序-truck terminal assembler

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

XMODEM/YMODEM PROTOCOL REFERENCE

iWebSMS2000是一个基于Web的短信平台 =============================================================================== 目前政府、企业信息化，对消息的获取提出了更加严格的要求，需要随时随地、不受 空间、时间、地点的限制；要求主动获取消息，要求能在节省成本，同时保证信息安全， 在这种情况下，本公司自行研制开发了基于Web方式的iWebSMS2000短信消息平台管理方案。 这个方案是采用金格无线Modem作为短信收发设备，并在此基础上开发了金格短信服务器软 件和Web应用组件，支持JavaBean或COM调用方式，提供高可靠的扩展性，方便了政府、企 业和软件开发商应用集成。-iWebSMS2000 is a Web-based messaging platform =========== ======================================== =========================== government, corporate information, Access to information made more stringent requirements, the need anywhere from space, time and location constraints; Active demand access to information requests in cost savings, while ensuring the security of information, in this case, The company developed its own Web-based information to the SMS platform iWebSMS2000 management programs. The program is the use of lattice as a wireless modem SMS transceiver equipment, and on this basis the development of the lattice messaging server

gprs协议栈代码.所谓协议栈就是对信息进行多次封装和解封的过程，以便能够在不同的实体间传送信息。本源代码来自Indian Institute of Technology-gprs protocol stack code. The so-called agreement is the right information Stack several Packaging, and the course was cleared, to the various entities to disseminate information. Source code from the Indian Institute of Technology

Linux下gsm/gprs modem的看守程序。支持短信发送与接受。-Linux under the gsm/gprs modem guard procedures. Support and acceptance of message sent.

HUAWEI UMTS Datacard/Modem AT 命令手册-HUAWEI UMTS Datacard/Modem AT Command Interface Specification

UART device driver for PC-to-PC communication using Null Modem Cable