In the article Introduction OFDM communication system commonly used in channel e...

Intercom 是一个 Unix系统上灵活的语音传输软件。支持标准音频压缩比如GSM, G.711, and G.72x和其他音频编码。Intercom专为高速网络设计来传输高品质的语音，也支持窄带传输。-Intercom is a Unix system flexible voice transmission software. Support audio compression standards such as GSM, G.711, and G.72x and other audio coding. Intercom specifically designed for high-speed network to deliver high-quality voice, also support narrowband transmission.

TCP 聊天程序客户端，详细讲述开发过程-TCP client chat program, described in detail the development process

该文章中，作者提出了一种低复杂度的OFDM帧同步方法，并给出了仿真结果-The article, the authors proposed a low complexity of OFDM frame synchronization methods, and simulation results

本程序包括一组子程序和中断程序，通过S7-200自由端口功能来产生从Modbus RTU. 它支持下列Modbus功能：----1.读输出(线圈)----2.读输入(触点)----3.读保持寄存器(V 存储器).----4.读输入寄存器----5.写单路输出----6.写单路保持寄存器----15.写多路输出----16.写多路保持寄存器-this includes a subroutine and the interruption procedure for the adoption of the S7-200 free port functions to generate from the Modbus RTU. It supports the following functions : a Modbus. Reading output (2) coil. Reading input (contact)---- 3. Reading maintain registers (V memory ).---- 4. Reading input register---- 5. write single-output---- 6. write to maintain the single-route Register---- 15. write multiple output---- 16. write multiple maintain registers

西门子的Gprs模块的设置与数据收发的方法-Siemens Gprs module installed and the data transceiver

水下扩频系统研究，本系统采用直接扩频序列方式，在有多径水声信道和无多径的水声信道进行研究比较-Underwater spread spectrum system, the system uses direct sequence spread-spectrum approach, in a number of Acoustic Channel Drive and non-multi-path acoustic channel for the study of comparative

c51连接pci rt8139网卡的电路原理图。-pci rt8139 decoder card connected to the circuit diagram.

实例支持中文短信，PDU格式，使用Delphi开发

OPC服务器的lib开发包，可以使用它快速开发出opc server-OPC server lib development kits, can use it to quickly develop server Oligomeric Proanthocyanidins

设置矩形窗宽度等于256，获得矩形窗截断的离散时间信号，并得到其实部和虚部，最终获得在100Hz和200Hz模拟虚指数信号实部及其时域加窗截断离散时间信号的波形图，DFT、DTFT和FFT的幅度谱