VB写的通过串口与考勤机连接通讯的程序

说明：  GPS串口通信程序，新建了一个数据库ACCESS，在显示当前GPS信息的同时可以存储以前记录过的信息，保存在数据库中，便于以后查阅。当前GPS信息包括：时间，经度，纬度，速度，真实航向以及磁偏移(GPS serial port communication program, a database of new ACCESS, show the current GPS information can be stored at the same time the information previously recorded, stored in a database for easy access later. The current GPS information including: time, longitude, latitude, speed, true course and magnetic offset)

基于VC++ 6.0 Winsock+UDP 广播信息源码(Based on VC++ 6.0 Winsock+ UDP broadcast source)

VC （MODBUS协议）上位机程序VC （MODBUS协议）上位机程序(VC （MODBUS）)

MCGS昆仑通态的触摸屏的脚本串口驱动(MCGS Kunlun touch screen script, serial port driver)

杨建国老师的通讯原理课件，第三章模拟信号的调制与解调，主要讲述信号产生与调制，射频特性，解调，MSK、GMSK、PSK、QPSK、BPSK、QAM等原理(Yang Jianguo teacher communication principles of courseware, the third chapter of the analog signal modulation and demodulation, and focuses on the signal generation and modulation, the RF characteristics, demodulation, MSK, GMSK, PSK, QPSK, as BPSK, QAM and other principles of)

用C++实现BPSK的仿真，包括信源，调制，信道，解调，计算误比特率(Using C++ implementation BPSK simulation, including source, modulation, channel, demodulator, bit error rate calculation)

GSM reading book in the would

三种模拟调制与解调的算法，三种模拟调制为：AM，FM，SSB(Three types of analog modulation and demodulation algorithms, three types of analog modulation for: AM, FM, SSB)

实现物理层网络编码的仿真，此为无信道编码环境下实现的(network coding)

visual C++ MFC 环境下 串口的连接，收发数据的实现，串口探测工具部分功能的实现(Serial port connection)