语音、视频聊天，采用G729a音频数据压缩，利用视频提供…

模拟通道的通信过程，能够进行正常的输入输出操作-Analog channels of communication process, to carry out the normal operation of the input and output

中文RFC文件，无需翻译，对学习很有帮助！

使用ntp（network time protocol）协议从网络时间服务器获取时间并显示出来-use the network time protocol get network time from some ntp server,and print

详细介绍如何使用Matlab实现数字信号处理功能。-Details on how to realize the use of Matlab functions of digital signal processing.

OFDM系统生成以及QAM调制方式MATLAB产生，分析了OFDM系统的调制方式的差别-OFDM system-generated and MATLAB generated QAM modulation, an analysis of OFDM modulation system differences

控制器局域网CAN 未来的工业微处理器串行通讯-CAN Controller Area Network future industrial microprocessor serial communications

这里是瑞丽信道仿真的六种方法。包括多普勒法，精确多普勒法，等距离法，Clarke模型，滤波器法，等面积法：MEA方法，最小均方误差法：MSEM方法，Jakes仿真法，Jakes仿真改进型法。

各种L2数据网具有不同的通信协议与帧结构，其网络节点设备可以是各种类型的数据交换机（X.25、FR、Ethernet和ATM等分组交换机）；而L3数据网（IP网或internet）具有统一的TCP/IP通信协议和分组结构，全网采用统一格式的IP地址， 节点设备统一采用面向无连接的路由器。为便于理解，我们可以将L3数据网简单地理解为构建在L2数据网平台上的一个路由器网。-L2 data network with a variety of different communication protocol and frame structure, the network node device can be of various types of data switches (X.25, FR, Ethernet and ATM packet switches, etc.) and L3 data network (IP network or internet) have a unified TCP/IP communication protocol and packet structure, the whole network using a unified format for the IP address, node equipment reunification-oriented connectionless router. In order to facilitate understanding, we can L3 data network simply interpreted as a data network built on the L2 platform for a network router.

本例是基于TCP协议的，实现客户端与服务器之间文件的传输-In this case is based on the TCP protocol, and implementation between the client and server file transmission

Spectrum Sensing in Cognitive Radio-Optimal Multiband Joint Detection for Spectrum Sensing in Cognitive Radio Networks