设输入的抑制载波双边带信号为m()coso. 则 V;=m(t)cos@tcos(@t+0) =m(t)[cose+cos(20!+0)1 2 V,=m(t)cos@tsin(@t+0) =Im(t)[sin@+sin(2@!+0)] 2 经低通后的输出分别为： V=m(t)cos0 V。=n(t)sinB 2 1010 设 输入的抑制载波双边带信号为 则 m t t  c ( )cos ( )cos cos( ) V3 = m t  c t  c t + ( )[cos cos(2 )] 2 1 = m t  +  c t + ( )cos sin( ) V4 = m t  c t  c t + ( )[sin sin(2 )] 2 1 = m t  +  c t + 经低通后的输出分别为: ( )cos 2 1 5 V = m t ( )sin 2 1 6 V = m t