基于FPGA的通信系统调制解调，包括理论知识介绍和VHDL程序。包含2ASK ,2FSK，2PSK -FPGA-based modem communication systems, including the introduction of theoretical knowledge and the VHDL program. Contains 2ASK, 2FSK, 2PSK

调制解调器是在发送端通过调制将数字信号转换成模拟信号，而在接收端通过解调将模拟信号转换为数字信号的一种装置。这个程序用VHDL语言编写，实现了二进制振幅键控（2ASK）的调制与解调；二进制频移键控（2FSK）的调制与解调，二进制相位键控（2PSK）的调制与解调过程。 多功能调制解调器-The modem is modulated by the transmission side converts the digital signal into an analog signal by the de

波形仿真，已通过测试，其中test文件是的，其他文件是其它类型可以参考(Waveform simulation, has passed the test, of which the test file is yes, other files are other types can refer to)