• 2022-06-03
    设数字码序列为0110100,以下数字调制的已调信号波形中为2ASK波形的是( )
    A: [img=506x245]180322bf7f356d4.jpg[/img]
    B: [img=510x244]180322bf90c3b87.png[/img]
    C: [img=494x233]180322bf9dca5dc.jpg[/img]
    D: [img=496x248]180322bfab44ee3.jpg[/img]