中文说明:
正交振幅调制是将两个振幅调制信号组合成单个信道的方法,从而使有效带宽加倍。在数字系统中,特别是在无线应用中,QAM与脉冲幅度调制一起使用。
English Description:
Quadrature amplitude modulation is a method to combine two amplitude modulation signals into a single channel, so as to double the effective bandwidth. In digital systems, especially in wireless applications, QAM is used together with pulse amplitude modulation p>