用BC++3.1编的C语言文本编辑器

生成2KHz和8KHz的混合信号，使该信号通过上述滤波器，观察滤波前后的波形变化和频谱分布情况。-2KHz and 8KHz generation mixed-signal, so that the signal through the above-mentioned filter, filter before and after observation of the waveform and spectrum distribution of the changes.

收发传真，浏览传真的程序-A program which receive、send and scan fax

CAN总线传输，关于输入方面的,示例代码-CAN transmission, on the importation, sample code

基于FFT的非二进制LDPC译码，非二进制ＬＤＰＣ的迭代译码算法可以通过ＦＦＴ运算来快速实现，具有译码效率高，性能好的特点。

M的JSON解析器是写在ISO C小JSON解析器使用户处理由JSON数据交换格式描述的信息。

GPRS 无线通信控件。基础的无线GPRS通信。可做无线监控用-GPRS wireless communication control. GPRS-based wireless communications. Can use wireless monitors

一个查找免费短信中心的软件，串口开发！ C#开发!-search for a free messaging center software, serial port development! C# development!

使用ip多播开发的小组多人聊天软件-use multicast development of the group over chat software

AT commands for sending and receiving SMS (Short Messages Service) messages.

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