数字频显收音机电路图和数字频显收音机原理~

用S7-200PLC的自由口模式和VB中的MSComm控件方便地实现了计算机与S7-200（CPU224）PLC的通讯。计算机作为主站,用户通过计算机可以方便地设置房间的控制指令并向PLC发出控制或监测命令， PLC作为从站来响应计算机发送的指令并采取相应的动作并将房间的电、水、热信息发回到计算机。用户可以通过电脑屏幕实时地监视到房间的电、水、热信息并进行相应的处理。-with S7-200PLC the Free Port Mode and the VB MSComm to realize a trap Computer and S7-200 (CPU224) PLC communications. Computer as a master station, Computer users can easily set up control rooms PLC issued directives to control or monitoring orders, PLC as from the station to respond to orders sent by the computer and take corresponding action will be room for electricity, water, Heat fat information to the computer. The user can screen real-time surveillance of the room electricity, water and heat information and handled accordingly.

用matlab仿真ofdm在wlan中的应用的源代码，此源代码适用于开发ofdm无线局域网的工程技术人员以及研究生。-simulation using Matlab OFDM wireless LAN in the application"s source code, the source code applicable to the development of OFDM wireless LAN engineering and technical personnel and graduate students.

使用Matlab编写的viterbi译码程序，希望对大家有用。-use Matlab prepared by the Viterbi decoding procedures in the hope that useful for all.

sms pushmessenger for every body in this world

单片机设计之基于网络的虚拟仪器测试系统，希望对你有帮助-MCU design a Web-based Virtual Instrument Test System

CDMA网络规划基础 PN码规划和邻区的规划 解释了PN码(伪随机序列)以及CDMA网络中的邻区的概念以及基本的规划方法-CDMA network planning based on PN Code Planning and adjacent areas of planning explained the PN code (pseudo-random sequence), as well as CDMA networks the concept of adjacent areas, as well as basic planning methods

基于FPGA的2ASK调制与解调系统设计 实现2ASK信号的调制与解调功能，基带数据发送4级M序列，数据率为1kb/s，载波用信号源产生，频率为1MHz，用示波器观察已调波波形。

Class B Data Communications Network Interface

用C#写的串口通信程序，能够实现简单的串口读取和写入,用C#写的串口通信程序，能够实现简单的串口读取和写入,