一个十分好的IEC870

GPRS中的隧道技术详细讲解，对于PS域中的GPRS，GTP-C,GTP-U很有参考价值-GPRS Tunneling technology elaborate PS domain for the GPRS, GTP-C, GTP-U is the reference value

4psk&8psk的matlab实现，采用蒙特卡罗仿真法，计算误码率误比特率，绘制相应曲线-the realization of 4psk&8psk by Matlab tool,it use Monte Carlo way to calculate the BER and draw the graph.

移动开发编程技术文档共享，很文件的技术资料-move

并口编程的源程序，用来控制各种并口的设备如打印机等，可做此类参考-parallel programming source, parallel port to control various devices such as printers, to do such reference

使用Modem发送文字信息给网上传呼 -Sending text to inernet call through modem

内容是关于 两个单片机之间的通信.一个做主机,另一个做从机.从机负责显示液晶显示(LCD1602)时钟(DS12887).通过上位机指令控制,并调整时间.并且控制闹钟的时间

在分析以往一些排课软件的基础上，提出一个通用的排课管理信息系统的设计方法，并对一些具体的技术问题作出相应安排-analysis of the past, some of the Course Scheduling software, based on a common course arrangement management information system design methods, as well as some specific technical problems to make the necessary arrangements

RFC3022：传统IP网络地址转换器（传统NAT）

6-551JFall-2004_AcousticsofSpeechandHearing， MIT 公开课程中非常经典的语音处理课程，对于从事语音信号处理的tx非常有参考价值。-6-551JFall-2004_AcousticsofSpeechandHearing, MIT open courses deal with a very classic voice curriculum, for the tx audio signal processing is a valuable reference.

Modbus 中文说明文档，很详细。比较不错-Modbus Chinese documentation, very detailed. Quite good