winsock procedures for beginners.

瑞利衰落是一种统计方法；

可以防止同一用户多次登陆，win32asm+odbc+tcp编写（多线程）-users can prevent the same number of landing, win32asm odbc tcp prepared (multithreaded)

TRasObject实现了一些主要的函数，允许开发者在其程序中使用RAS功能。它可以管理连接（创建，修改，重命名，删除），对选定的连接拨号或挂断。-TRasObject achieved some of the major functions, allowing developers to use in their proceedings RAS features. It can manage to connect (create, modify, rename, delete), the selected dial-up or hang up the connection.

网络socket编写指南，非常详细，是不可多得socket参考手册-Guidelines for the preparation of the network socket, very detailed, it is rare socket reference manual

用c++实现p2p代码，可以学习如何用c++实现p2p的通讯 很实用 -P2p using c++ implementation code, you can learn how to use c++ very practical realization of p2p communication

本程序是和AB公司的SLC500系列PLC进行通讯,可以和RSLINX卡进行OPC方式的通讯.-procedures and the company AB SLC500 series PLC communications, can RSLINX cards OPC way communications.

this is a code which measures freuency occuring at outside

In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.-In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

这是一个vb与s7200PLC自由口通讯的类模块，我自己工程中可以直接使用。它使用的通讯方式是西门子PLC的自由口通讯技术实现。在工程开发中有不错的表现，希望大家提出宝贵的意见。

用MSComm控件实现来电显示-with MSComm achieve CND