An orthogonally multiplexed QAM(O-QAM)system is a multichannel system with a baud rate spacing between the adja- cent carrier frequences and can be implemented by digital signal processing(DSP)technique.

• 正交复用 QAM(O-QAM)系统是一个相邻载频间隔为波特率的多路系统；可以用数字信号处理技术实现.