这个是一个FSK调制解调MATLAB实现的程序，是简化版的，调制解调一起调试的~-this is a FSK modulation and demodulation MATLAB procedure is simplified. modulation and demodulation with a testing -

在本系统中，信息序列在先经过FSK调制，经过截止频率为25kHz的低通滤波器后（把信号频率限制在25kHz），再进入混频器搬移到更高的频率发送出去，在接收端，用与发送端同步的跳频信号对其进行变频（跳频的解跳处理在此进行），取下边频，然后进行FSK的解调-In this system, the message sequence prior through FSK modulation, through the cut-off frequency of 25kHz after low-pass fi

包含FSK，PSK，QPSK，16QAM调制解调系统-Including FSK, PSK, QPSK, 16QAM modulation and demodulation system

2ASK的链路仿真，信号源的产生，PCM编码，调制解调以及加燥-2 fsk link simulation signal source, PCM coding and modulation demodulation and dry