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For a message signal (t) = cos(2πfc t) and carrier of frequency. Which of the following represents a single side-band (SSB) signal? (a) cos(2πfm t) cos(2πfc t) (b) cos(2πfc t) (c) cos(2π(fc + fm )t (d) [1 + cos(2πfm t)]. cos(2πfc t) |
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Answer» (c) cos(2π(fc + fm )t Option (a) in the problem represents AM signal DSB-SC. If will have both side bands option (b) represents only the carrier frequency Option (c), cos(2π(fc + fm )t represents upper side band (SSB-SC). It represent SSB signal Option (d) represents the conventional AM signal |
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