simple ofdm

AM,FSK,PSK调制，自己修改参数,结果用PCM文件保存，以二进制数据读入-modulate:am fsk psk

用matlab写viterbi译码算法,老外写的现代通信系统书上的-using Matlab write Viterbi decoding algorithm, a foreigner writing a modern communications system on the books

(2,1,3)卷积码搭建了简单的系统来进行纠错展示,可以实现从编码,加入错误,译码,输入输出码字对比等基本功能,另外加入了交互模块,用户可以自己设定错误比特的数目和位置,使纠错功能显而易见.-(2,1,3) Convolutional Codes built a simple system for correcting display can be realized from coding, joined errors, decoding, the input and output code contrast basic functions, adding to its interactive modules, Users can set their own errors and the number of bits, so that error-correcting functions obvious.

很好的串口通讯编程源码，对学习串口通讯编程有很大的帮助-Serial communication programming good source for learning serial communication programming is very useful to

通过仿真产生频率调制信号，并对其频谱特性进行分析

手机串口通信设置程序，通过自定义的AT命令来完成-Phone serial communication setup program, through a custom AT command to complete

仿真载频为2GHz，带宽1MHz，子载波数128个，cp为16，子载波间隔为7.8125kHz 一个ofdm符号长度为128us，cp长度为16us，采用16QAM调制方式，最大doppler频率为132Hz 采用LMMSE估计和LS估计算法并进行了比较

支持XMODEM,YMODEM,FAX协议的串口通信软件包 -Commnication libraray supports XMODEM,YMODEM,FAX protocol

Sip phone implementation for Mac

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