本源代码是一个邮件收发系统，可以实现了简单的文件接受、发送功能...

SCM 信道模型的相关仿真程序：3GPP-TR-25.996-SCM channel model of the relevant simulation program: 3GPP-TR-25.996

Communication Serie , RS232, HyperTerminal

基于DEVC++的手机模拟系统，文件共计1500行，-Based on DEVC++ Analog mobile phone systems, document a total of 1500 lines,

CPCI 2R3 CPCI主规范 -CPCI 2R3 CPCI 2.0 R3.0

串口通讯例程，事件驱动。-serial communications routines, event-driven.

线数字通信的编码程序源代码 （AMi）自适应的源代码

DNW的0.5源代码，支持USB和Serial的Download，在VC6.0下测试通过。-DNW 0.5 source code, support for USB and Serial for Download, in VC6.0 under test.

A. 产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2；B. 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50%，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列）；C. 改用HDB3码，画出前20个符号对应的波形；D. 改用密勒码，画出前20个符号对应的波形；E. 分别对上述1000个符号的波形进行功率谱估计，画出功率谱；F. 改变信源“0”的概率，观察AMI码的功率谱变化情况；-have a length of 1,000 random binary sequence, "0" with a probability of 0.8, "a" with a probability of 0.2; B. above zero AMI data coding, and pulse width of symbols width of 50%, waveform sampling rate Symbol rate for the eight times that he painted before the 20 symbols corresponding waveforms (also given before 20 Source sequence); C. HDB3 code switch to depict the former 20 symbols corresponding waveform; D. Miller to switch codes to depict the former 20 symbols corresponding waveform; E. respectively above 1,000 symbols for the power spectrum waveform estimated to depict the power spectrum; F. Change source "0" the probability to observe AMI code changes in the power spectrum;

FFT 研究的资料，介绍FFT的原理、应用等-fft

matlab实现QPSK调制,分别给出了相位选择法和I Q两路正交调制相加发实现QPSK调制，给出了QPSK调制后的功率谱密度。