用vb写的移动测距，效率很高的，希望大家喜欢

用于实现单目标跟踪的仿真。采用单传感器单目标的方式，介绍了基本的数据关联方法。-Used to achieve single-target tracking simulation. Single-sensor single-objective way to introduce the basic method of data association.

非常实用的Modbus调试工具源码，采用VC6.0 开发，主要用于调试Modbus设备，软件功能使用，实现原理简单，是调试支持Modbus协议自动化设备的必备工具

现代通信原理信息工程核心课程希望给大家有帮助-Modern Communication Theory Information Engineering core curriculum hope to have everyone help

GSM移动通讯模块教程，比较详细的。对新手有很大的帮助的-GSM mobile communication module tutorial, in more detail. To the novice of great help to the

串口调试VB源代码.可以实现串口接收,串口参数设置,并能保存相关信息,特别适合于对串口通讯有兴趣的程序员.-Serial debug VB source code. Can be achieved to receive serial port, serial parameter setting, and to preserve relevant information, especially suitable for serial communication to interested programmers.

可以自动探测你所处的网络NAT类型-can automatically detect where you are in the type of network NAT

晶体管的型号命名，材料分类，结构，识别方法，使用方法。-Transistor model name, material classification, structure, identification methods, the use of methods.

通过ftp下载信息，完整代码，在生产中使用呢；对大家应该有用；-through ftp download information, the integrity of code used in production now. Should be useful to everyone;

虽然Windows下可视化开发工具如VC、Delphi、C＋＋ Builder等都有专用的定时器控件Timer，而且使用很方便，可以实现一定的定时功能，但最小计时精度仅为55ms，且定时器消息在多任务操作系统中的优先级很低，不能得到及时响应，往往不能满足实时控制环境下的应用。不过Microsoft公司在Win32 API函数库中已经为用户提供了一组用于高精度计时的底层函数，如果用户使用得当，计时精度可到1ms。这个计时精度、对于一般的实时系统控制完全可以满足要求。现将由C＋＋ Builder 4.0提供的重新封装后的一组与时间相关的主要接口函数（函数名、参数、功能与Win32 API基本相同）说明如下： -visual development tools such as Visual C++, Delphi, C++ Builder and others all have dedicated Timer timer control, but it is convenient. can achieve a timing function, but only the minimum time of 55 ms accuracy. Timer news and multi-task operating system in the low priority that is not to respond in a timely manner, often fail to meet the real-time control environment applications. However, Microsoft Corporation in the Win32 API function has been to provide the user with a group for high-precision the bottom was a time function, if the user is properly utilized, time accuracy can be a ms. Accuracy this time, and for most of the real-time control system can meet the requirements.

Windows下的串口接收发送软件源码，可以同时控制多达4个串口，并且可以为每个串口设定不同的传输参数，非常实用。-Windows under the serial receiver to send the software source code, you can simultaneously control up to four serial port and serial port settings for each different transmission parameters, very useful.