tongxun

这是蓝牙4.0的规范说明文档，对于了解4.0协议有所帮助。(This is the Bluetooth 4.0 specification document helpful for understanding the 4.0 protocol.)

一个串口通讯的源码，自定义的通讯协议，与切纸设备连接(A serial communications source, since the definition of communication protocols, and cutting equipment to connect)

信道基本特性的仿真程序，包括小尺度衰落信道（频率选择性信道和时间选择性信道）的仿真，分集接收及误码率的仿真。(Channel basic characteristics of the simulation program. including small-scale fading channel (frequency selective channel and time-selective channel) simulation, Diversity reception and BER simulation.)

使用MFC编写的windows环境下的串口操作工程模板(Serial port operation project templates written using MFC windows environment)

本文系统的介绍了TQ2440开发板相关知识，对这方面的读者很有作用。(This article describes the system development board TQ2440 knowledge, useful in this respect the role of the reader.)

带语音识别的SIP-HMP程序, 可以实现ASR和TTS(sip hmp asr tts demo)

4QAM(QPSK)的调制解调以及计算误码率，最后将结果输出至表格。适合新手参考(The modulation and demodulation of 4QAM (QPSK) and the calculation of bit error rate, and finally output the result to the form. Suitable for novice)

DS-CDMA系统的,直扩通信系统里基于不同扩频码不同，系统的误码率比较。其中基于多相正交序列的误码率最低。(DS-CDMA system)

LDPC 译码算法 spa bp置信传播(LDPC spa bp LDPC LDPC)

ctorrent源码实现，良好的源码架构和精干的代码组织。 (ctorrent source implementation of good source code structure and lean tissue.)