ErrorProbabilityofMPSKOFDMImpairedbyCarrierFrequency OffsetinAWGNChannels

利用哈夫曼编码进行通信可以大大提高通信信道利用率，缩短信息传输时间，降低传输成本。这要求在发送端通过一个编码系统将传输数据预先编码；在接收端将传来的数据进行译码（复原）。对于双工信道（即可以双工传输信息的信道），每端都需要一个完整的编/译码系统。为这样的信息收发站设计的一个哈夫曼编/译码系统。 (2-use Huffman coding communication can greatly enhance communication channel utilization, reduced transmission time, and lower transmission costs. This requires the transmitter through a coding system will transmit data in advance coding; The receiving end of the data came decoding (recovery). For dual-channel (that is, information can duplex transmission channel), each side needs a complete encoding/decoding system. For this information hubs designed a Huffman encoding/decoding system. (2005-5-

QAM星座图的原理和应用 QAM星座图的原理和应用-QAM constellation diagram of the principle and application of the principle of QAM constellation diagram and applications

ST20C2/C4 Core Instruction Set Reference Manual

载波同步是QPSK信号相干解调的一项关键技术。-Carrier synchronization signal coherent QPSK demodulation is a key technology.

vc图像编程的经典教案，是VC程序员的必备参考-vc picture programming classics teach the document, is the VC programmer necessary refers

最近，通过变换光学方法研究新型电磁器件，如斗篷、聚焦器、天线、新型波导的设计是一个热点问题，本代码采用了matlab与Comsol接口仿真外斗篷，能够将放置在斗篷外部的物体隐藏，代码中包含了建模，边界条件设置，激励源设置，外斗篷参数等信息，对这一研究方向的学者有帮助。

网络IP电话源代码 开机：打开监听服务，以便别人可以和你通话。 关机：关闭监听服务，已经接受的连接不受影响，你可以继续通话。 拨号：连接已经开机的机器，弹出对话框后必须输入对方的IP和端口，如果需要使用代理，请正确设置代理服　　　务器。 挂机：断开正在进行的通话。 开机后会显示你监听的IP和端口，别人可以通过这个IP和端口和你连接。 连接成功（你拨号连接别人或别人来连接你）后会显示对方的IP和端口。-IP telephony network boot source code : Open monitoring services, and so that other people can talk to you. Shutdown : Close monitoring services, has accepted the connection will not be affected, you can continue to talk. Dial-up : Connecting switched on the machine, pop-up dialog box appears to be imported each other"s IP and port, if the need to use the agent, the right to set up the proxy server. Coolness : disconnect the ongoing conversations. After boot monitor will show you the IP and port, the others through IP and port and connect you. Connecting success (your dial-up connection or other people to connect you) will show the other side of the IP and port.

网络通信开发包手册开发一套易用的网络通信包，以C＋＋形式对功能进行封装。 对WinSocket和NamedPipe的API函数进行封装，并且提供部分API函数完成连接的建立和数据检测功能。 附带使用说明书。 原作者闻怡洋-network communication development kits developed a manual, easy-to-use communications network packets to C++ form of a wrapper function. WinSocket NamedPipe right and the API function Packaging, and provided some API function linking the establishment and data detection. Incidental instruction manual. Author Wen Yue Yang

在pc机上应用tc35i进行调试的程序,有来电显,及拨号-Pc machine in debug TC35i application procedures, there are significant calls and dial-up

开发工具Keil ，采用单片机C8051F340。主要实现功能，通过485级联通信，采取上位机（串口调试软件）发码的方式，给各从机发指令，每个从机有固定的地址，从机接到指令后进行相应的操作并返回一串码。若发送的码有误，则返回错误指示码。