使用串口和modem进行远程通讯，传达远程的设备的工作状态

串口通信的源代码，很好用！-serial communication source code, easy to use!

本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF signals, mainly related to the telephone dial tone of the basic principles of synthesis and identification of the main methods, the use of MATLAB software and the FFT algorithm on the telephone communication system dial tone Synthesis and Recognition . And further the use of MATLAB in the production of graphical user interface simple and intuitive GUI interface simulation. Able to take advantage of matrix synthesis of different fundamental frequency 0- 9 different keys of the dial tone and be able to different dial tone to be the correct identification, the dial tone from a telephone number to resolve the process of completion of the telephone dial tone system, a simple experiment simulation

电力设备CDT协议,介绍比较详细,希望有用-Electrical equipment CDT agreement to introduce the more detailed the hope that useful

AWGN channel. Uses a file called BPSK (containing BPSK voltage levels) and adds gaussian noise to it. The noise is generated by box muller equation. Note: BPSK file was generated from BPSK modulator source: BPSK.c

modbus 采用Rtu方式时检测寄存的值.-modbus test using Rtu way that the value of storage.

手机发送给SP的汉字消息,SP端读取的时候可能只是读取Unicode码的一个字节,会出现乱码.本程序很好的解决了这个问题!-phones sent to the Chinese news SP, SP-time reader may only read a Unicode byte code, there will be gibberish. This procedure very well resolve the problem!

实例程序 十分似的发射点法士大夫上的-Examples of procedures

LabView 用于串口读写数据读取缓冲的最佳时间间隔，在串口通信内容长度不确定的情况下，能完整接收数据并在接收结束之后尽快的停止接收，决定串口通信的效率。此vi经过小修改应该就能普遍适用。

一个fir滤波器Designer的例子-A fir filter example Designer

ASK通信编程仿真源程序-ASK communication simulation programming source