VB写的通过串口与考勤机连接通讯的程序

opnet学习资料，提供部分网络仿真模型。一:介绍OPNET 环境。二：执行M/M/1队列模型。三：以太网模型（Aloha，CSMA,CSMA－CD).四：TCP.五：OSPF(OPNET learning materials, providing part of the network simulation model. 1: Introduction OPNET environment. Second: The Executive M/M/1 queue model. III: Ethernet model (Aloha, CSMA, CSMA-CD). IV: TCP. 5: OSPF)

有关4QAM，16QAM，64QAM，DQPSK的调制解调的(The 4QAM, 16QAM, 64QAM, DQPSK modulation and Demodulation)

BPSK信号调制过程以及误码率的计算，最后结果可以用曲线图形输出(sfazvassfasczxcasafavasvasvxzxv)

说明：  VB写的通过串口与考勤机连接通讯的程序,便于工作查看，调试。(VB written through the serial port and Attendance Machine Connection Communication Procedures, easy to see the work, debugging.)

说明：  DDE CLIENT,用于dde方式读区服务器内容(DDE Client for dde reading of server content)

不错的客户端连接程序，希望大家喜欢，里面是一个客户端的程序，一会会提供服务端的程序(good client procedures in the hope that everyone likes, there is a client process, will provide a service side of the process)

该程序实现水声信道的模拟方法及性能分析，提出了一种信的水声信道模型(The program implements underwater acoustic channel simulation methods and performance analysis, presents a letter of underwater acoustic channel model)

卓望短信网关.+cmpp3.0协议.MISC系统短信SP接入培训.(ASPire SMS gateway.+ Cmpp3.0 agreement. MISC SMS SP system, access to training.)

ptz 云台控制软件, 内带C++ 源码(ptz PTZ control software, which brought C++ source)

这是在uwb系统中，用TOA定位法的的整个系统的仿真程序源码 (This is a simulation program source code for the entire system in uwb systems, TOA positioning method)