FreeModbus

CRC的全称为Cyclic Redundancy Check，中文名称为循环冗余校验。它是一类重要的线性分组码，编码和解码方法简单，检错和纠错能力强，在通信领域广泛地用于实现差错控制-CRC called the Cyclic Redundancy Check, the Chinese name of the Cyclic Redundancy Check. It is an important class of linear block codes, encoding and decoding method is simple, and error detection and correction capability in the field of communication widely used to achieve error control

TAPI 接受演示程序-TAPI accept Demonstration Program

一个TCP/IP的服务器端，但是增加了列表显示以及对客户端标示管理！-A TCP/IP server program with list display and client management

一个SMS 的短信平台的原代码，需要JAVA 的comm.jar的支持。可以和一些商用SMS的短信平台相媲美-an SMS messaging platform of the original code, the need JAVA Comm.jar support. Business can and some SMS messaging platform comparable

RFID开发实例代码，很简单的程序，最好搭配读卡器使用，因为要在上面进行试验。希望对大家有所帮助。

应用背景This document describes how to set up a 6x6 multiple input, multiple output (MIMO) system using NI LabVIEW software and NI USRP™ (Universal Software Radio Peripheral) hardware. After a brief discussion of MIMO, the paper examines the hardware and software based on LabVIEW for a 6x6 MIMO-OFDM system using 4-QAM as modulation scheme. The system presented here is also capable of working as a 2x2 MIMO and 4x4 MIMO system with appropriate parameter configuration.关键技术With MIMO, you can increase wireless system performance without increasing power consumption. It is based on the idea that when using multiple antennas, the transmitted signal progresses through different wireless channels, from the transmitter antennas to the receive antennas, to

用matlab写viterbi译码算法,老外写的现代通信系统书上的-using Matlab write Viterbi decoding algorithm, a foreigner writing a modern communications system on the books

应用背景     基于Android平台， 建立wifi热点， 实现wifi连接的功能，暂时还没实现数据通信的功能，适合初学者，学习如何建立wifi热点，和连接热点。关键技术 wifi许可，为获得wifi网络状态，需要  获取wifi管理接口WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

通过API调用，可以把从键盘接收到的字符串到串口，然后把获得的字符显示在屏幕上-through API calls can be received from the keyboard to the string of serial and then the characters were shown on the screen

用C实现的gprs modem 上网功能-C achieved with gprs modem Internet access