• 2022-06-06
    已知某因果连续时间线性时不变系统,其频率响应为[img=127x59]1803862dd586bd3.png[/img],对于某一输入信号x(t)所得输出信号的傅里叶变换为[img=186x54]1803862de0ac454.png[/img],则该系统的输入
    A: [img=111x39]1803862de96f2b1.png[/img]
    B: [img=122x42]1803862df321774.png[/img]
    C: [img=104x34]1803862dfd21086.png[/img]
    D: [img=98x42]1803862e068380b.png[/img]
  • 举一反三