检查串口是否联有modem

点对点即时通信软件，VB实现，包含服务器端和客户端源代码。-Peer-to-peer instant messaging software, VB realize that contains server-side and client source code.

wapi spec study guide.

介绍各种平台进行SOCKET编程的好东东。-on various platforms Socket Programming good Dongdong.

文章研究了在OFDM系统中一种基于训练引导的判决反馈均衡技术-Research article in the OFDM system, a training guide based on the decision feedback equalizer technology

实现了TCP/IP中客户端的接收，发送功能，可以良好通信-Realize the TCP/IP in the client to receive, send feature that good communication

C++ Primer中文版及题解,一本学习C++的好书.-C Primer and that the Chinese version of Solutions, a learning C books.

是一个关于解相关多用户检测的matlab源程序以及程序说明 -Is the a on decorrelating multi-user detection matlab source, as well as description of the procedures

2004070213400424120SOCKET服务程序，从事SOCKET服务器开发-2004070213400424120SOCKET service procedures, engaged in the development of server SOCKET

利用分裂基算法求实序列的DFT,虚部赋值为零,这些程序是用C来实现的-Split-radix algorithm for the use of realistic sequence of DFT, the imaginary part of the assignment of zero, these procedures are used to achieve the C

C program to calculate the BER performance of BPSK modulation in an AWGN channel. The program takes the file "BPSK" containing voltage levels and passes it in an AWGN channel with a given SNR. The received message is then Hard decision decoded and the bit error rate is calculated. The BER over different SNR is calculated. THe output values can be used to draw a BER vs SNR(dB) curve.