0 votes 0 votes A carrier $Ac\cos(\omega c)t$ is frequency modulated by a signal $Em\cos(\omega m)t.$ The modulation index is $mf.$ The expression for the resulting FM signal is $Ac\cos [\omega ct + mf\sin(\omega m)t]$ $Ac\cos [\omega ct + mf\cos(\omega m)t]$ $Ac\cos [\omega ct + \pi mf\sin \omega m t]$ $Ac\cos [\omega ct + 2\pi mf Em \cos(\omega m)t/\omega m]$ Digital Signal Processing nielit2017oct-assistanta-cs non-gate + – admin asked Aug 28, 2020 recategorized Oct 28, 2020 by Krithiga2101 admin 383 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes option A is right. It is standard equation of FM s_dr_13 answered Mar 19, 2022 s_dr_13 comment Share Follow See all 0 reply Please log in or register to add a comment.