这个还可以，请多多指教！

In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.-In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

这本书是关于超宽带通信的一本很好的入门书籍-This book is on the ultra-wideband communications in a very good entry-books

这是我自己编写的串口调试程序，希望对大家有所帮助-This is what I have written serial debugger, we want to help

  一个基于 exosip 库的 UAC 和 UAS 的代码整理（转）

csta协议的开发，支持多种语音交换机的开发-csta agreement to develop and support the development of a wide range of voice switches

Keil软件是目前最流行的开发MCS-51的软件，其方便易用的集成环境，强大的软件仿真调试工具会让你事半功倍。-Keil Software is the most popular development of MCS-51 software, and its easy-to-use integrated environment, a powerful software simulation tools will let you debug effort.

GPIB通讯源程序 开发环境为日本YELLOW SOFT环境-GPIB communications source development environment for the Japanese YELLOW SOFT environment

用FPGA实现数字低通FIR滤波器，对FIR滤波器的开发有一定的借鉴意义。-Using FPGA digital low-pass FIR filter, the development of the FIR filter has a certain degree of referential significance.

Debian Linux下的通讯程序 -The communication example for Debian Linux

NT下读写端口例子-example of reading and writing port