用FFT实现相关函数快速估计。

一个网页形式的GSM modem的短信发送-The form of a web page GSM modem to send SMS

在MATLAB中对OFDM进行仿真的代码，仿真正确-OFDM in the MATLAB simulation of the code, the correct simulation

this code is about demodulation of 4qam

关于串口的编程示例，代码实现对串口的管理功能，可供学习和参考。-on serial programming examples, the source implementation of the serial port management functions, available for study and reference.

VHDL语言实现了IS-95标准中的48阶成型滤波器。工作速率80Mbps。接收发送端均可使用。-VHDL Language realize the IS-95 standard of 48 bands forming filter. Work rate of 80Mbps. Can be used to receive the sending end.

基于OFDM技术，仿真了整个通信流程。包括卷积码编码，删除打孔方式的选择，BPSK调制，16QAM调制，交织，解交织，解调，viterbi译码等技术详细的仿真源代码。编程风格简洁，可读性好，注释详细，对于初学者来说是相当不错的资料，还可以根据自己的需要对源程序进行修改，直接可用到相关工程中。

本代码为MSComm控件在VC的MFC程序中控制多个串口的应用实例。在使用MSComm控件时，1个MSComm控件只能同时对应一个串口。如果应用程序需要访问多个串口，那么必须使用多个MSComm控件。-MSComm control of the code for the MFC in VC process control multiple serial application. In the use of MSComm control when a MSComm control only at the same time corresponds to a serial port. If an application needs to access multiple serial port, then must use a number of MSComm control.

移动通信基本知识:从通信网的角度看，移动网可以看成是有线通信网的延伸，它由无线和有线两部分组成。无线部分提供用户终端的接入，利用有限的频率资源在空中可靠地传送话音和数据；有线部分完成网络功能，包括交换、用户管理、漫游、鉴权等，构成公众陆地移动通信网PLMN。从陆地移动通信的具体实现形式来分主要有模拟移动通信和数字移动通信这两部种。-Basic knowledge of mobile communications: From the perspective of communication networks, mobile networks can be seen as an extension of wired communication network, which is both wireless and wired components. Part of user terminals to provide wireless access, frequency of use of limited resources in the air and reliable transmission of voice and data wired part of the completion of network functions, including switching, subscriber management, roaming, authentication and so on, constitute a public land mobile communication network PLMN. From land-based mobile communications to the specific forms of the main points have analog and digital mobile communications that two kinds of mobile communication.

这是一个很好的文档，关于VLC开源项目在Cygwin上编译的，:)-This is a very good document, on the VLC open source projects on the Cygwin compiled, :)

OBD2 SAE Protocol J1979 Doc