communications related knowledge : shortwave, spread spectrum, mobile

通过对pcomm.dll调用,对com口通讯的例程.采用多线程方式，可以对多串口进行通讯处理。-By pcomm.dll call on the com port communication routines. Using multi-threaded, it can be to deal with multi-serial communication.

an article talking about how to effectively make modeling on the end-to-end throughput of mesh networks.

LDPC码的实现,包括编码器和解码器,使用了DCT.-LDPC codes to achieve, including encoders and decoders, the use of the DCT.

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。 在改信号中加入高斯白噪声，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. Add to the signal in white Gaussian noise was observed before and after filtering the waveform and spectrum distribution of the changes.

基于不同层面的流量控制专题（QOS）（华为技术文档）-based on different levels of flow control feature (QOS) (Huawei Technologies documentation)

该程序是VCO的simulink不同实现。设置不同的参数可得到不同的仿真效果。-that the procedure was different VCO Simulink achieve. Set up different parameters can be obtained simulation results.

6-551JFall-2004_AcousticsofSpeechandHearing， MIT 公开课程中非常经典的语音处理课程，对于从事语音信号处理的tx非常有参考价值。-6-551JFall-2004_AcousticsofSpeechandHearing, MIT open courses deal with a very classic voice curriculum, for the tx audio signal processing is a valuable reference.

Turbo C编写的串口测试程序，可作主板维修时调试和测试串口使用。-Turbo C, prepared by serial testing procedures can be used for motherboard repair debugging and testing serial port to use.

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.

汽车通讯协议 h78-232转换协议-Automotive communication protocols h78-232 conversion agreement