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Math Help - Advanced communications mathematics

  1. #1
    Junior Member
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    Advanced communications mathematics

    m(t) =1cos(2pi3t)+0.8cos(2pi6t+pi/2)

    Find the "expressions" for the NBPM and NBFM signals...

    OK I admit I need help
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  2. #2
    MHF Contributor
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    Do you mean this

    s
    NBFM
    (t) = Accos(2pfct) - 2pAckf sin(2pfct)a(t)

    and this

    sNBPM(t) = Accos(2pfct) - Ackpsin(2pfct)m(t)

    where

    m(t) = da(t)/dt?
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