• 2022-06-07
    Which of the following sampling frequency of narrow band signal is correct?
    A: ωs≥2ωh
    B: ωs≥2ωl
    C: [img=462x62]18031bf50efc13b.png[/img]
    D: [img=461x65]18031bf519538f1.png[/img]
  • 举一反三