6. Suppose that the signal m(t) = sinc (Bt) modulates the carrier signal c(t) = cos(2...

 

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6. Suppose that the signal m(t) = sinc (Bt) modulates the carrier signal c(t) = cos(2 fet) using double sideband suppressed carrier (DSBSC) amplitude modulation. That is, the transmitted signal is x(t) = m(t)c(t).|| (a) Find the Fourier transform X(f) of x(t). (b) Draw a block diagram of the DSBSC-AM receiver for this problem. (c) Suppose now that FM modulation with modulation index of f = 4 is used, and B = 100Hz, find the channel's bandwidth. out for the FM system using a signal with maximum amplitude of 1 SNRin (d) Find volt, and PM = 1 Watts. 6. Suppose that the signal m(t) = sinc (Bt) modulates the carrier signal c(t) = cos(2 fet) using double sideband suppressed carrier (DSBSC) amplitude modulation. That is, the transmitted signal is x(t) = m(t)c(t).|| (a) Find the Fourier transform X(f) of x(t). (b) Draw a block diagram of the DSBSC-AM receiver for this problem. (c) Suppose now that FM modulation with modulation index of f = 4 is used, and B = 100Hz, find the channel's bandwidth. out for the FM system using a signal with maximum amplitude of 1 SNRin (d) Find volt, and PM = 1 Watts.

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a The Fourier transform of a DSBSCAM signal is given by Xf Mf Cf where Mf is the Fourier transform o... View the full answer