通信史话

对JAVA安全机制的研究---消息摘要加密方法-right JAVA security mechanism of news-- Abstract encryption methods

matlab关于多天线相关矩阵的子程序，调用输入为天线间距，到达角度，和角度扩展-matlab on multi-antenna correlation matrix of the subroutine, call input antenna spacing, arrival angle, and angle expansion

中国移动MMS规范，主要描述了中国移动彩信平台的结构概述，相信您读完对，整个彩信体系会有一定的了解-China Mobile MMS norms, the main description of China Mobile MMS platform structure outlined, I believe you read right, MMS system as a whole will have a better understanding

cdma 码分多址系统的pn码同步获取程序，利用滑动相关峰值的最大值来获取同步-cdma CDMA system pn code synchronization acquisition procedures, the use of sliding correlation peak to obtain the maximum synchronization

采用vc++编程，获取网络中成员的IP地址和主机名-Used vc++ Programming, access to the members of the network IP address and host name

用S7-200PLC的自由口模式和VB中的MSComm控件方便地实现了计算机与S7-200（CPU224）PLC的通讯。计算机作为主站,用户通过计算机可以方便地设置房间的控制指令并向PLC发出控制或监测命令， PLC作为从站来响应计算机发送的指令并采取相应的动作并将房间的电、水、热信息发回到计算机。用户可以通过电脑屏幕实时地监视到房间的电、水、热信息并进行相应的处理。-with S7-200PLC the Free Port Mode and the VB MSComm to realize a trap Computer and S7-200 (CPU224) PLC communications. Computer as a master station, Computer users can easily set up control rooms PLC issued directives to control or monitoring orders, PLC as from the station to respond to orders sent by the computer and take corresponding action will be room for electricity, water, Heat fat information to the computer. The user can screen real-time surveillance of the room electricity, water and heat information and handled accordingly.

这是关于短信协议的电子书，我费了老大劲才找到的资料，供大家分享。希望能对搞GPRS通信和嵌入式的朋友有所帮助-This is the agreement on the text message e-books, I charge the oldest frozen find information for everyone to share. The hope is to engage GPRS communications and embedded friends help

This program generates BPSK signal waveforms and plot the power spectrum of unfiltered BPSK.

WCDMA CPRI接口协议，这个是2.1版本，应用在WCDMA BBU和RRU之间的通信-WCDMA CPRI interface protocol, this is version 2.1, used in WCDMA BBU and RRU communications between

ipt网关源码--Source code of ipt gateway